Marine Geoscience Data System

Recent Data Contributions

2020-12-01

ROV SuBastian Primary Navigation Data acquired during R/V Falkor expedition FK190529 (2019)
Author(s): Fries, Marc
Description: This data set was acquired with a Navigation System on ROV SuBastian during R/V Falkor expedition FK190529 conducted in 2019 (Chief Scientist: Dr. Marc Fries). These data files are of Text File (ASCII) format and include Navigation data that have not been processed.
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ROV SuBastian Primary Navigation Data acquired during R/V Falkor expedition FK200126 (2020)
Author(s): Trotter, Julie
Description: This data set was acquired with a Navigation System on ROV SuBastian during R/V Falkor expedition FK200126 conducted in 2020 (Chief Scientist: Dr. Julie Trotter). These data files are of Text File (ASCII) format and include Navigation data that have not been processed.
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ROV SuBastian Primary Navigation Data acquired during R/V Falkor expedition FK200308 (2020)
Author(s): Wilson, Nerida
Description: This data set was acquired with a Navigation System on ROV SuBastian during R/V Falkor expedition FK200308 conducted in 2020 (Chief Scientist: Dr. Nerida Wilson). These data files are of Text File (ASCII) format and include Navigation data that have not been processed.
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ROV SuBastian Primary Navigation Data acquired during R/V Falkor expedition FK200122 (2020)
Author(s): SOIDataManager,
Description: This data set was acquired with a Navigation System on ROV SuBastian during R/V Falkor expedition FK200122 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of Text File (ASCII) format and include Navigation data that have not been processed.
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ROV SuBastian Primary Navigation Data acquired during R/V Falkor expedition FK200429 (2020)
Author(s): SOIDataManager,
Description: This data set was acquired with a Navigation System on ROV SuBastian during R/V Falkor expedition FK200429 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of Text File (ASCII) format and include Navigation data that have not been processed.
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Processed depth-migrated seismic reflection data across the Aleutian arc from Langseth ALEUT cruise MGL1110 (2011)
Author(s): vonHuene, Roland; Miller, John; Krabbenhoeft, Anne
Description: Three 2-D line segments from ALEUT cruise MGL1110 have been processed by the USGS to the point of migrated depth and used for figures in the von Heune et al., 2020 G-Cubed publication. The processing was done using ProMAX seismic data processing software on Linux/Redhat hardware. Processing steps and navigation details about these processed lines are given in the accompanying PDF file called "Data_Description_Processing_Flow_Navigation_Notes". These processed seismic files are in SEG-Y image format and navigation is the same as that in the P190 processed navigation files. However, these processed SEG-Y data files are subsets of the original lines and do not have the navigation coordinates stored in their trace headers. The processed lines can be located along the original track lines by using the table in the PDF document. The original seismic data was collected in 2011 with the LDEO Multi-Channel Seismic system during Langseth cruise MGL1110 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) project. Chief Scientist on the cruise was Donna Shillington. Refer to Cruise MGL1110 for complete acquisition details.
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Processed depth-migrated seismic reflection image profiles across the Aleutian arc from Langseth ALEUT cruise MGL1110 (2011)
Author(s): vonHuene, Roland; Miller, John; Krabbenhoeft, Anne
Description: These seismic profiles accompany three 2-D line segments from ALEUT cruise MGL1110 that were processed by the USGS to the point of migrated depth and used for figures in the von Heune et al., 2020 G-Cubed publication. The processing was done using ProMAX seismic data processing software on Linux/Redhat hardware. Processing steps and navigation details about these processed lines are given in the accompanying PDF file called "Data_Description_Processing_Flow_Navigation_Notes". These seismic images are in JPEG format. The original seismic data was collected in 2011 with the LDEO Multi-Channel Seismic system during Langseth cruise MGL1110 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) project. Chief Scientist on the cruise was Donna Shillington. Refer to Cruise MGL1110 for complete acquisition details.
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ROV SuBastian Dive Reports from R/V Falkor expedition FK200308 (2020)
Author(s): Wilson, Nerida
Description: These dive reports document basic dive metadata and dive events for ROV SuBastian dives conducted during R/V Falkor expedition FK200308 2020 (Chief Scientist: Dr. Nerida Wilson). These reports are of PDF format.
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2020-11-01

Google Earth files of ROV SuBastian dive tracks and events during R/V Falkor expedition FK200126 (2020)
Author(s): Trotter, Julie
Description: This data set was acquired with a Navigation System and Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK200126 conducted in 2020 (Chief Scientist: Dr. Julie Trotter). These data files are of Google Earth (KML) format.
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ROV SuBastian Dive Reports from R/V Falkor expedition FK200429 (2020)
Author(s): SOIDataManager,
Description: These dive reports document basic dive metadata and dive events for ROV SuBastian dives conducted during R/V Falkor expedition FK200429 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of PDF format.
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ROV SuBastian Dive Reports from R/V Falkor expedition FK200802 (2020)
Author(s): Brooke, Brendan
Description: These dive reports document basic dive metadata and dive events for ROV SuBastian dives conducted during R/V Falkor expedition FK200802 conducted in 2020 (Chief Scientist: Dr. Brendan Brooke). These data files are of PDF format.
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Google Earth files of ROV SuBastian dive tracks and events during R/V Falkor expedition FK200429 (2020)
Author(s): SOIDataManager,
Description: This data set was acquired with a Navigation System and Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK200429 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of Google Earth (KML) format.
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Raw Geoswath bathymetry and sidescan data (RFF format) in Eastern Long Island Sound (2018)
Author(s): Babb, Ivar; Arbige, Dennis
Description: This data set was acquired with a pole-mounted Kongsberg Geoswasth sonar system and assembled as part of the LIS2:UConn_Acoustics data compilation (Chief Scientist: Ivar Babb). The data was collected in different survey segments A1 to A6 and B1 to B6 using the UConn survey vessel R/V Lowell Weicker. Each survey segment zipped file contains raw and auxiliary data. The raw files are in RFF format and may be read with processing packages such as Caris and SonarWiz. Also included are sound velocity files and tide correction files. Funding was provided by the Long Island Sound Seafloor Mapping Fund administered cooperatively by the EPA Long Island Sound Study and the Connecticut Department of Energy Protection (DEEP).
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK190529 (2019)
Author(s): Fries, Marc
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK190529 conducted in 2019 (Chief Scientist: Dr. Marc Fries). These data files are of Text File (ASCII) format and include Vehicle Navigation, Oxygen Sensor, CTD and Temperature probe data that have not been processed.
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In-situ Fluid pH Data acquired during R/V Falkor expedition FK200308 (2020)
Author(s): Wilson, Nerida
Description: This data set was acquired with a PH Probe on ROV SuBastian during R/V Falkor expedition FK200308 conducted in 2020 (Chief Scientist: Dr. Nerida Wilson). These data files are of Text File (ASCII) format and include Fluid pH data that have not been processed.
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In-situ Fluid pH Data acquired with ROV SuBastian during R/V Falkor expedition FK200126 (2020)
Author(s): Trotter, Julie
Description: This data set was acquired with a pH Probe on ROV SuBastian during R/V Falkor expedition FK200126 conducted in 2020 (Chief Scientist: Dr. Julie Trotter). These data files are of Text File (ASCII) format and include Fluid pH data that have not been processed.
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK200122 (2020)
Author(s): SOIDataManager,
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK200122 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of Text File (ASCII) format and include Vehicle Navigation, Oxygen Sensor, CTD and Temperature probe data that have not been processed.
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Processed Bathymetry Rasters (GeoTIFF grid format) derived from Geoswath multibeam data in Eastern Long Island Sound (2018)
Author(s): Babb, Ivar; Arbige, Dennis
Description: This data set was acquired with a Kongsberg Geoswasth sonar system and assembled as part of the LIS2:UConn_Acoustics data compilation (Chief Scientist: Ivar Babb). The acquired bathymetry data have been corrected for tides, sound velocity and ship motion, and edited using Caris software. The data have been proccessed in two individual blocks. The final bathymetry grids are in GeoTIFF (Raster) grid format. The rasters are projected in UTM NAD83 18N projection with 1m resolution.
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Processed Sidescan Rasters (GeoTIFF grid format) derived from Geoswath data in Eastern Long Island Sound (2018)
Author(s): Babb, Ivar; Arbige, Dennis
Description: This data set was acquired with a Kongsberg Geoswasth sonar system and assembled as part of the LIS2:UConn_Acoustics data compilation (Chief Scientist: Ivar Babb). The acquired sidescan data have been corrected for tides, sound velocity and ship motion, and merged into backscatter mosaics using Caris software. The data have been processed in two individual blocks. The final sidescan backscatter grids are in GeoTIFF (Raster) grid format. The rasters are projected in UTM NAD83 18N projection with 1m resolution.
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Machine-learning predicted logarithmic values of marine mass accumulation rates on the seafloor
Author(s): Restreppo, Giancarlo; Wood, Warren; Graw, Jordan; Phrampus, Benjamin
Description: This data set consists of logarithmic values of machine-learning-based mass accumulation rates and linear standard deviation on the seafloor, globally. The Geospatial Predictive Seafloor Model (GPSM) of the United States Naval Research Laboratory was trained on real-world observations from 42 peer-reviewed sources (n = 690) to predict marine mass accumulation rates on a 5-arc-minute map using a k-nearest neighbor algorithm. Original (non-log space values) are in g/cm2/yr. The model and results are described in Restreppo et al. (2021). The data files are in netCDF (.nc) grid format. The file called prediction.nc contains the predicted sediment accumulation rate in log10(g/cm2/yr). The file called prediction_sdev.nc is the linear standard deviation, in g/cm2/yr. DOI: 10.26022/IEDA/329906
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK200126 (2020)
Author(s): Trotter, Julie
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK200126 conducted in 2020 (Chief Scientist: Dr. Julie Trotter). These data files are of Text File (ASCII) format and include Vehicle Navigation, Oxygen Sensor, CTD and Temperature probe data that have not been processed.
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK200802 (2020)
Author(s): Brooke, Brendan
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK200802 conducted in 2020 (Chief Scientist: Dr. Brendan Brooke). These data files are of Text File (ASCII) format and include Conductivity, Navigation, Oxygen and Temperature data that have not been processed.
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Eurasia-North America Chrons 1-6 plate reconstruction data: Arctic and north Atlantic basins
Author(s): DeMets, Charles; Merkouriev, Sergey
Description: Identifications of magnetic reversals from Anomaly 1 (0.78 Ma) to Anomaly 6 (~20 Ma) from a wide range of shipboard and airborne magnetic data from the Arctic Basin and northern Atlantic spreading centers are embedded in a text file along with fracture zone (and transform fault) traces that were digitized from best-available bathymetric and satellite gravity data. These include all the data that were used to estimate the high-resolution Eurasia-North America plate rotation sequence described by Merkouriev and DeMets (2014). A detailed description of the file contents is found at the start of the file. The data file is in ASCII text format and was generated as part of a project called Toward an understanding of Neogene plate dynamics: Completion of a high-resolution, closure-enforced chronology of global plate motions since 20 Ma. Funding was provided through NSF award OCE14-33323 and Russian Foundation grant 05-04-64297. DOI: 10.26022/IEDA/329892
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Bathymetry data (GeoTIFF grid format) of the Northern-most Adriatic area: Interreg Ita-Slo 2007-2013 TRECORALA Project
Author(s): Gordini, Emiliano; Ciriaco, Saul
Description: In the framework of the Interreg Ita-Slo 2007-2013 TRECORALA Project, a two-year research and data collection campaign was performed (2012-2014). The purpose of the TRECORALA project was to broaden the biological knowledge of the "Trezze"/"Grebeni" and coralligenous seabeds of the Gulf of Trieste and to identify guidelines for the management, protection and enhancement of this natural environment, strengthening the attractiveness and competitiveness of the area and contributing to safeguarding biodiversity. Through the collected information on professional fishing activities, management proposals were made regarding some resources of particular commercial interest. As a final product, the project provided the necessary tools for the joint cross-border management of marine areas, also developing the tourism sector.This multidisciplinary study presents the major characteristics of a set of submarine rock outcrops in the Northern Adriatic Sea: the rock occurrence, embedded down to about 1 m from the seafloor in the bottom sediments; several gas accumulations in the proximity of the outcrops (e.g., bubbling gas from the sediment–water interface); small-scale mud volcanoes; and microbial mats around the seepage site. Geochemical analysis revealed that these features are related to the seepage of CH4-rich fluids, which causes the precipitation of methane-derived calcium carbonate as a cement. A variety of benthic specimens contributes to their growth, including bryozoans, molluscs, serpulid polychaetes, scleractinians and calcareous algae, the latter acting as the main bio-constructors. The site is characterized by the presence of localized coralligenous buildups, widespread along the northwestern Adriatic Sea inner shelf between depths of 10-27 m. These rocky build-ups rise to 3 m above the sandy-mud seafloor and have a patchy distribution. The study area was mapped using Reson SeaBat 7125 and 8125 multibeam systems to localize the rocky outcrops and to distinguish between soft and hard substrates. The multibeam surveys were conducted from a small boat, named Anthea, using differential GPS for navigation. Sea waves were not perfectly corrected by the inertial system. Here we present the maps of the main outcrops monitored in the Northern-most Adriatic area. The processed data files were gridded at 2 m resolution. The files are in GeoTIFF grid format, projected in the UTM33 WGS84 system. DOI: 10.26022/IEDA/329903
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India-Somalia Chrons 1-6 plate reconstruction data: northern Indian Ocean
Author(s): DeMets, Charles; Merkouriev, Sergey
Description: Identifications of magnetic reversals from Anomaly 1 (0.78 Ma) to Anomaly 6 (~20 Ma) from a wide range of shipboard and airborne magnetic data from the India-Somalia portion of the Carlsberg Ridge and Central Indian Ridge are embedded in a text file along with fracture zone (and transform fault) traces that were digitized from best-available bathymetric and satellite gravity data. These include all the data that were used to estimate the high-resolution India-Somalia plate rotation sequence described by DeMets et al. (2020). A detailed description of the file contents is found at the start of the file. The data file is in ASCII text format and was generated as part of a project called Toward an understanding of Neogene plate dynamics: Completion of a high-resolution, closure-enforced chronology of global plate motions since 20 Ma. Funding was provided through NSF award OCE14-33323 and Russian Foundation grant 05-04-64297. DOI: 10.26022/IEDA/329895
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Nubia-South America Chrons 1-13 plate reconstruction data: Central and southern Atlantic basin
Author(s): DeMets, Charles; Merkouriev, Sergey
Description: Identifications of magnetic reversals from Anomaly 1 (0.78 Ma) to Anomaly 13 (~34 Ma) from a wide range of shipboard and airborne magnetic data from the central and southern Mid-Atlantic Ridge are embedded in a text file along with fracture zone (and transform fault) traces that were digitized from best-available bathymetric and satellite gravity data. These include all the data that were used to estimate the high-resolution Nubia-South America plate rotation sequence described by Merkouriev and DeMets (2019). A detailed description of the file contents is found at the start of the file. The data file is in ASCII text format and was generated as part of a project called Toward an understanding of Neogene plate dynamics: Completion of a high-resolution, closure-enforced chronology of global plate motions since 20 Ma. Funding was provided through NSF award OCE14-33323 and Russian Foundation grant 05-04-64297. DOI: 10.26022/IEDA/329894
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Nubia-North America Chrons 1-6 plate reconstruction data: Northern Atlantic basin
Author(s): DeMets, Charles; Merkouriev, Sergey
Description: Identifications of magnetic reversals from Anomaly 1 (0.78 Ma) to Anomaly 6 (~20 Ma) from a wide range of shipboard and airborne magnetic data from the Nubia-North America portion of the Mid-Atlantic Ridge are embedded in a text file along with fracture zone (and transform fault) traces that were digitized from best-available bathymetric and satellite gravity data. These include all the data that were used to estimate the high-resolution Nubia-North America plate rotation sequence described by Merkouriev and DeMets (2013). A detailed description of the file contents is found at the start of the file. The data file is in ASCII text format and was generated as part of a project called Closing the global plate circuit: High-resolution reconstructions of African plate motion from 0 to 20 Ma. Funding was provided through NSF award OCE09-26274 and Russian Foundation grant 05-04-64297. DOI: 10.26022/IEDA/329893
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Southwest Indian Ridge Chrons 1-6 plate reconstruction data: Southern ocean basin
Author(s): DeMets, Charles; Merkouriev, Sergey
Description: Identifications of magnetic reversals from Anomaly 1 (0.78 Ma) to Anomaly 6 (~20 Ma) from a wide range of shipboard and airborne magnetic data from the Southwest Indian Ridge are embedded in three text files with fracture zone and transform fault traces that were digitized from best-available bathymetric and satellite gravity data. These include all the data that were used to estimate the high-resolution rotation sequences for the Nubia, Lwandle, and Somalia plates relative to Antarctica described by DeMets et al. (2015). Detailed descriptions of the file contents are found at the starts of all three files. The data file is in ASCII text format and was generated as part of a project called Toward an understanding of Neogene plate dynamics: Completion of a high-resolution, closure-enforced chronology of global plate motions since 20 Ma. Funding was provided through NSF award OCE14-33323 and Russian Foundation grant 05-04-64297. DOI: 10.26022/IEDA/329896
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK200308 (2020)
Author(s): Wilson, Nerida
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) Navigation System during R/V Falkor expedition FK200308 conducted in 2020 (Chief Scientist: Dr. Nerida Wilson). These data files are of Text File (ASCII) format and include Conductivity, Navigation, Oxygen and Temperature data that have not been processed.
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK200429 (2020)
Author(s): SOIDataManager,
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK200429 conducted in 2020 (Chief Scientist: SOI Data Manager). These data files are of Text File (ASCII) format and include Conductivity, Navigation, Oxygen and Temperature data that have not been processed.
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A 2-dimensional P-wave velocity model (MATLAB format) along the MARGIN Transect (Line 3) of the Juan de Fuca Ridge-to-Trench study
Author(s): Canales, JuanPablo; Horning, Greg; Carbotte, Suzanne; Carton, Helene; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model and depth-to-reflectors from first-arrival travel-time tomography of OBS wide-angle refraction and reflection data acquired along the MARGIN Transect (Line 3) of the Juan de Fuca Ridge-to-Trench study. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the MATLAB binary files - see the associated data set for the ASCII version of this model. The file contents is a Matlab structure (L3) with the following fields. Velocity model (L3.v) in km/s for all 107 depth intervals and 1705 x nodes. L3.v_masked is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L3.bat, L3.basement, L3.moho) for 1705 x nodes in km below sea level. L3.z provides depths for 107 z nodes in km below seafloor. L3.x provides distance in km along the transect from the Oregon Transect (L1), with negative values indicating distances south of L1. L3.lat and L3.lon are provided for 1705 x nodes in decimal degrees. L3.lat0 and L3.lon0 provide the lat/lon coordinates in decimal degrees of the intersections of L1 and L3. The seismic velocity model is referenced in Horning et al., 2016 and in Canales et al., 2017 and details on acquisition and processing maybe found in those papers. The data set was generated as part of the project called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench. Funding was provided through NSF awards OCE10-29305,OCE10-29411. DOI: 10.26022/IEDA/329891
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A 2-dimensional P-wave velocity model (ASCII format) along the MARGIN Transect (Line 3) of the Juan de Fuca Ridge-to-Trench study
Author(s): Canales, JuanPablo; Horning, Greg; Carbotte, Suzanne; Carton, Helene; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model and depth-to-reflectors from first-arrival travel-time tomography of OBS wide-angle refraction and reflection data acquired along the MARGIN Transect (Line 3) of the Juan de Fuca Ridge-to-Trench study. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the ASCII files - see the associated data set for the MATLAB version of this model. The ASCII file contents are as follows. Velocity model (L3_v) in km/s for all 107 depth intervals and 1705 x nodes. L3_vmask is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L3_bathymetry, L3_basement, L3_moho) for 1705 x nodes in km below sea level. L3_z provides depths for 107 z nodes in km below seafloor. L3_x provides distance in km along the transect from the Oregon Transect (L1), with negative values indicating distances south of L1. L3 lat and lon are provided for 1705 x nodes in decimal degrees. L3_zero provides the lat lon coordinates in decimal degrees of the intersections of L1 and L3. The seismic velocity model is referenced in Horning et al., 2016 and in Canales et al., 2017 and details on acquisition and processing maybe found in those papers. The data set was generated as part of the project called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench. Funding was provided through NSF awards OCE10-29305,OCE10-29411. DOI: 10.26022/IEDA/329890
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A 2-dimensional P-wave velocity model (MATLAB format) along the Washington Transect (Line 2) of the Juan de Fuca Ridge-to-Trench study
Author(s): Boulahanis, Bridgit; Canales, JuanPablo; Carbotte, Suzanne; Carton, Helene; Han, Shuoshuo; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model from first-arrival travel-time tomography of OBS refraction data acquired along the Washington Transect (Line 2) of the Juan de Fuca Ridge-to-Trench study as well as MCS reflection-derived depth-to-reflectors. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the MATLAB binary files - see the associated data set for the ASCII version of this model. The file contents are as follows. Velocity model (L2_v) in km/s for all 107 depth intervals and 1295 x nodes. L2_vmask is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L2_bathymetry, L2_basement, L2_moho) for 1295 x nodes in km below sea level. L2_z provides depths for 107 z nodes in km below seafloor. L2_x provides distance in km along the transect from the Margin Transect (L3), with negative values indicating distances seaward (west) of L3. L2 lat and lon are provided for 1295 x nodes in decimal degrees. L2_zero provides the lat/lon coordinates in decimal degrees of the intersections of L2 and L3. The data set was generated as part of the projects called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench; and, Inferences on Cascadia Deformation Front and Plate Interface Properties from Advanced Studies of Active-Source Seismic Data. Funding was provided through NSF awards OCE10-29305, OCE10-29411, OCE16-57737 and OCE16-57237. DOI: 10.26022/IEDA/329889
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A 2-dimensional P-wave velocity model (ASCII format) along the Washington Transect (Line 2) of the Juan de Fuca Ridge-to-Trench study
Author(s): Boulahanis, Bridgit; Canales, JuanPablo; Carbotte, Suzanne; Carton, Helene; Han, Shuoshuo; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model from first-arrival travel-time tomography of OBS refraction data acquired along the Washington Transect (Line 2) of the Juan de Fuca Ridge-to-Trench study as well as MCS reflection-derived depth-to-reflectors. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the ASCII files - see the associated data set for the MATLAB version of this model. The ASCII file contents are as follows. Velocity model (L2_v) in km/s for all 107 depth intervals and 1295 x nodes. L2_vmask is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L2_bathymetry, L2_basement, L2_moho) for 1295 x nodes in km below sea level. L2_z provides depths for 107 z nodes in km below seafloor. L2_x provides distance in km along the transect from the Margin Transect (L3), with negative values indicating distances seaward (west) of L3. L2 lat and lon are provided for 1295 x nodes in decimal degrees. L2_zero provides the lat/lon coordinates in decimal degrees of the intersections of L2 and L3. The data set was generated as part of the projects called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench; and, Inferences on Cascadia Deformation Front and Plate Interface Properties from Advanced Studies of Active-Source Seismic Data. Funding was provided through NSF awards OCE10-29305, OCE10-29411, OCE16-57737 and OCE16-57237. DOI: 10.26022/IEDA/329888
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A 2-dimensional P-wave velocity model (MATLAB format) along the Oregon Transect (Line 1) of the Juan de Fuca Ridge-to-Trench study
Author(s): Canales, JuanPablo; Horning, Greg; Carbotte, Suzanne; Carton, Helene; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model and depth-to-reflectors from first-arrival travel-time tomography of OBS wide-angle refraction and reflection data acquired along the Oregon Transect (Line 1) of the Juan de Fuca Ridge-to-Trench study. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the MATLAB binary files - see the associated data set for the ASCII version of this model. The file contents is a Matlab structure (L1) with the following fields. Velocity model (L1.v) in km/s for all 107 depth intervals and 2090 x nodes. L1.v_masked is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L1.bat, L1.basement, L1.moho) for 2090 x nodes in km below sea level. L1.z provides depths for 107 z nodes in km below seafloor. L1.x provides distance in km along the transect from its western end. L1.lat and L1.lon are provided for 2090 x nodes in decimal degrees. L1.lat0 and L1.lon0 provide the lat/lon coordinates in decimal degrees of the western end of the transect. The seismic velocity model is referenced in Horning et al., 2016 and in Canales et al., 2017 and details on acquisition and processing maybe found in those papers. The data set was generated as part of the project called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench. Funding was provided through NSF awards OCE10-29305,OCE10-29411. DOI: 10.26022/IEDA/329887
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A 2-dimensional P-wave velocity model (ASCII format) along the Oregon Transect (Line 1) of the Juan de Fuca Ridge-to-Trench study
Author(s): Canales, JuanPablo; Horning, Greg; Carbotte, Suzanne; Carton, Helene; Nedimovic, Mladen
Description: This data set consists of a 2-dimensional P-wave velocity model and depth-to-reflectors from first-arrival travel-time tomography of OBS wide-angle refraction and reflection data acquired along the Oregon Transect (Line 1) of the Juan de Fuca Ridge-to-Trench study. The model is provided in both MATLAB and ASCII format with columns as defined below and within files. Here we present the ASCII files - see the associated data set for the MATLAB version of this model. The ASCII file contents are as follows. Velocity model (L1_v) in km/s for all 107 depth intervals and 2090 x nodes. L1_vmask is the same data masked to only contain velocity values in regions of good ray coverage. Depth to reflectors (L1_bathymetry, L1_basement, L1_moho) for 2090 x nodes in km below sea level. L1_z provides depths for 107 z nodes in km below seafloor. L1_x provides distance in km along the transect from its western end. L1 lat and lon are provided for 2090 x nodes in decimal degrees. L1_zero provides the lat/lon coordinates in decimal degrees of the western end of the transect. The seismic velocity model is referenced in Horning et al., 2016 and in Canales et al., 2017 and details on acquisition and processing maybe found in those papers. The data set was generated as part of the project called Evolution and Hydration of the Juan de Fuca Crust and Uppermost Mantle: A Plate-Scale Seismic Investigation from Ridge to Trench. Funding was provided through NSF awards OCE10-29305,OCE10-29411. DOI: 10.26022/IEDA/329886
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Processed Gridded Bathymetry Data acquired during R/V Kilo Moana expedition KM1908 (2019)
Author(s): Gaherty, James; Eilon, Zach
Description: This data set was acquired with a Kongsberg Maritime EM122 Multibeam Sonar during R/V Kilo Moana expedition KM1908 conducted in 2019 (Chief Scientist: Dr. James Gaherty, Investigators: Dr. James Gaherty, Zach Eilon). These data files are of NetCDF format and include Bathymetry data that were processed after acquisition. Data were acquired as part of the project(s): Collaborative Research: Imaging small-scale convection and structure of the mantle in the south Pacific: a US contribution to an international Pacific Array; Collaborative Research: Imaging small-scale convection and structure of the mantle in the south Pacific: a US contribution to international collaboration Pacific Array. Funding was provided by NSF award(s): OCE16-58214, OCE16-58491. DOI: 10.26022/IEDA/329885
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2020-10-01

Heat flow, thermal gradient and thermal conductivity data for Pescadero Basin (cruise FK181031, 2018)
Author(s): Negrete-Aranda, Raquel; Neumann, Florian; Harris, Robert
Description: This data set consists of thermal gradients and thermal conductivity to compute the heat flux in Pescadero Basin, Gulf of California. The data have been processed to convert from resistance to temperature using calibrations for each thermistor. Heat flow was estimated by combining the thermal gradient and thermal conductivity using the Bullard method. The data set was collected using a custom 1-m long ROV heat flow probe from Andrew Fisher, UC Santa Cruz. The heat flow probe was deployed on dives S0193-S0199 with ROV SuBastian during Falkor cruise FK181031, operated by Schmidt Oceanographic Institute. Each deployment of the heat flow probe lasted approximately 15 minutes. The data file is in tab-separated ASCII text format with column headers and units; the header block gives explanatory notes. The data set was generated as part of a heat flow study in the Gulf of California and was supported by National Science Foundation grant OCE16-34536 to Rob Harris. DOI: 10.26022/IEDA/329884
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Bottom Photos acquired with the HOV Alvin at the East Pacific Rise at 9N during the Atlantis expedition AT11-07 (2004)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Digital Camera on the HOV Alvin during Atlantis expedition AT11-07 conducted in 2004 (Chief Scientist: Dr. Hans Schouten; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): Microbial Biofilms and Fluid Chemistry on Larval Settlement at Deep-sea Hydrothermal Vents, Central Anomaly Magnetic High: Constraints on the Volcanic Construction and Architecture of Young Upper Oceanic Crust, In-Situ Sensors for Monitoring the Chemistry of Hydrothermal Fluids, and Establishing a Role for Fe and S Microbial Metabolism in Ocean Crust Weathering, and funding was provided by NSF grant(s): OCE01-17117, OCE02-41791, OCE98-19261, and the WHOI DOEI.
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Bottom Photos acquired with the HOV Alvin at the Juan de Fuca Ridge 2000 Focus Site during the Atlantis expedition AT15-67 (2010)
Author(s): Lee, Raymond
Description: This data set was acquired with a Digital Camera on the HOV Alvin during Atlantis expedition AT15-67 conducted in 2010 (Chief Scientist: Dr. Raymond Lee). Data were acquired as part of the projects: Essential upgrades to resistivity instruments, CORK Optical Telemetry System, and Collaborative Research: Thermal biology of hydrothermal vent paralvinellid worms, and funding was provided by NSF grants: OCE06-23383, OCE06-23554, OCE07-51868, and OCE09-26849.
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Bottom Photos acquired with the HOV Alvin at the Juan de Fuca Spreading Center - Endeavour Segment during the Atlantis expedition AT15-34 (2008)
Author(s): Lee, Raymond
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on the HOV Alvin during Atlantis expedition AT15-34 conducted in 2008 (Chief Scientist: Dr. Raymond Lee). Data were acquired as part of the project(s): Collaborative Research: Thermal biology of hydrothermal vent paralvinellid worms, and funding was provided by NSF grant(s): OCE04-49578 and OCE06-23554.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT15-06 (2006)
Author(s): Fornari, Daniel
Description: This data set was acquired with a towed Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT15-06 conducted in 2006 (Chief Scientist: Dr. Karen Von Damm; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): RESET06: Ridge 2000 Atlantis/Alvin Response to 9N ISS Eruption, and funding was provided by NSF grant OCE03-27126. This data was cited by Fundis et al., 2010.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT11-07 (2004)
Author(s): Soule, S.Adam; Fornari, Daniel
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT11-07 conducted in 2004 (Chief Scientist: Dr. Hans Schouten; Investigator(s): Dr. S. Adam Soule and Dr. Daniel Fornari). Data were acquired as part of the project(s): Microbial Biofilms and Fluid Chemistry on Larval Settlement at Deep-sea Hydrothermal Vents, Central Anomaly Magnetic High: Constraints on the Volcanic Construction and Architecture of Young Upper Oceanic Crust, In-Situ Sensors for Monitoring the Chemistry of Hydrothermal Fluids, and Establishing a Role for Fe and S Microbial Metabolism in Ocean Crust Weathering, and funding was provided by NSF grant(s): OCE01-17117, OCE02-41791, OCE98-19261, and DOEI-TS03. This data was cited by Soule et al., 2009.
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Bottom Photos acquired with ROV Jason II at the Lau Back-arc Basin during the Thomas G. Thompson expedition TN234 (2009)
Author(s): Resing, Joseph
Description: This data set was acquired with a ESC Digital Camera on the ROV Jason II during Thomas G. Thompson expedition TN234 conducted in 2009 (Chief Scientist: Dr. Joseph Resing). Data were acquired as part of the project(s): Neovolcanic activity in the NE Lau Basin - Cruise Webpage and Northern Lau/Tonga Eruption Rapid Response - MARGINS, and funding was provided by NSF grant(s): OCE09-29411, OCE09-29881, OCE09-30025, and OCE09-34660.
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Bottom Photos acquired with ROV Jason II at the Lau Back-arc Basin during the Thomas G. Thompson expedition TN235 (2009)
Author(s): Fisher, Charles
Description: This data set was acquired with a Digital Camera on the ROV Jason II during Thomas G. Thompson expedition TN235 conducted in 2009 (Chief Scientist: Dr. Charles Fisher). Data were acquired as part of the project(s): COLLABORATIVE RESEARCH: Processes and patterns in back arc basin hydrothermal vent communities, and funding was provided by NSF grant(s): OCE07-32333 and OCE07-32439.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT15-13 (2006)
Author(s): Soule, S.Adam; Fornari, Daniel
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT15-13 conducted in 2006 (Chief Scientist: Dr. Karen Von Damm; Investigator(s): Dr. S. Adam Soule and Dr. Daniel Fornari). Data were acquired as part of the project(s): Temporal Variations in Hydrothermal Fluid Chemistry at 9-10N East Pacific Rise: Elucidating Ties to Crustal and Biological Processes, and funding was provided by NSF grant(s): OCE02-42038, OCE03-27126, OCE03-27261, OCE05-25863, OCE05-27208, and OCE07-01196. This data was cited by Fundis et al., 2010.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT15-27 (2007)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT15-27 conducted in 2007 (Chief Scientist: Dr. Karen Von Damm; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): From Local to Extreme Environments (FLEXE), and funding was provided by NSF grant(s): OCE03-27126. This data was cited by Fundis et al., 2010.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT15-15 (2007)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT15-15 conducted in 2007 (Chief Scientist: Dr. Timothy Shank; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): Collaborative Research: Integrated Studies of Biological Community Structure at Deep-Sea Hydrothermal Vents, IDEA: Coupling Communication Technology with in Situ Voltammetric Analyzers for Real Time and Unattended Monitoring of Biogeochemically Relevant Chemical Species, and Collaborative Research: MIP: Physiology and molecular ecology of thermophilic nitrate-reducing microorgansisms at deep-sea hydrothermal vents, and funding was provided by NSF grant(s): MCB04-56676, OCE03-08398, and OCE03-27353. This data was cited by Fundis et al., 2010.
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Bottom Photos acquired with the HOV Alvin at the East Pacific Rise Spreading Center during the Atlantis expedition AT15-28 (2007)
Author(s): Sievert, Stefan
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on the HOV Alvin during Atlantis expedition AT15-28 conducted in 2007 (Chief Scientist: Dr. Stefan Sievert). Data were acquired as part of the project(s): Microbiology and Biogeochemistry of Autotrophic Microbes in the Subsurface at Hydrothermal Vents: Filamentous-Sulfur Producing Bacteria, In-Situ Chemical Sensors for Monitoring the Chemistry of Hydrothermal Vent Fluids at Mid-Ocean Ridges: Instrument Development and Field Applications, Carbon Fixation Pathways in Marine Chemoautotrophic, Mesophilic Crenarchaeota: Implications for the Oceanic Carbon Cycle, CAREER: The Carbon Concentrating Mechanism of the Deep-sea Hydrothermal Vent Chemolithoautotroph Thiomicrospira crunogena, Collaborative Research: MIP: Physiology and molecular ecology of thermophilic nitrate-reducing microorgansisms at deep-sea hydrothermal vents, and Collaborative Research: Integrated Studies of Biological Community Structure at Deep-Sea Hydrothermal Vents, and funding was provided by NSF grant(s): MCB04-56676, MCB06-43713, OCE03-27353, OCE04-52333, OCE05-25907, and OCE06-23908.
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Bottom Photos acquired with the WHOI TowCam at the Lau Back-arc Basin during the Kilo Moana expedition KM0417 (2004)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Kilo Moana expedition KM0417 conducted in 2004 (Chief Scientist: Dr. Charles Langmuir; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): LAUB-FLEX: Deep Circulation and Dispersal in the Lau Basin using Floats, Integrated Hydrothermal and Petrological Studies of the Eastern Lau Spreading Center, and Venture Deep Ocean, Lau Basin Expedition 2 of 5, and funding was provided by NSF grant(s): OCE02-41716, OCE02-41785, OCE02-41909, OCE02-41913, OCE02-42114, OCE02-42618, OCE02-42675, and OCE02-42902.
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Bottom Photos acquired with the HOV Alvin at the East Pacific Rise at 9N during the Atlantis expedition AT15-32 (2008)
Author(s): Luther, George
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on the HOV Alvin during Atlantis expedition AT15-32 conducted in 2008 (Chief Scientist: Dr. George Luther). Data were acquired as part of the project(s): IDEA: Coupling Communication Technology with in Situ Voltammetric Analyzers for Real Time and Unattended Monitoring of Biogeochemically Relevant Chemical Species and Establishing a Long-Term Geodetic Network at the East Pacific Rise Ridge 2000 Integrated Studies Site, and funding was provided by NSF grant(s): OCE03-08398 and OCE06-47840.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the New Horizon expedition TCS06NH (2006)
Author(s): Fornari, Daniel
Description: This data set was acquired with a towed Nikon Coolpix 995 Digital Camera on TowCam during New Horizon expedition TCS06NH conducted in 2006 (Chief Scientist: Dr. James Cowen; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): A Ridge 2000 Time Critical Studies Response Cruise to an Eruptive Event, Traps and Pumps for Hydrothermal Sampling, Collaborative Research: Oceanographic and Topographic Influences on Dispersal of Hydrothermal Vent Species, Collaborative Research: Continuation Time-Series Responses to a Mid-Ocean Ridge Volcanic Event: Juan de Fuca and Gorda Ridges, and ABR: Detailed Mapping and Modeling of Submarine Lava Flows and Emplacement Processes: The East Pacific Rise 9° 25'N to 9° 55'N, and funding was provided by NSF grant(s): OCE02-22069, OCE04-24953, and OCE05-25863. This data was cited by Fundis et al., 2010.
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Bottom Photos acquired with the HOV Alvin at the Juan de Fuca Ridge 2000 Focus Site acquired during the Atlantis expedition AT15-22 (2007)
Author(s): Lee, Raymond
Description: This data set was acquired with a Digital Camera on the HOV Alvin during Atlantis expedition AT15-22 conducted in 2007 (Chief Scientist: Dr. Raymond Lee). Funding was provided by NSF grant(s): OCE06-23554.
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Bottom Photos acquired with the Argo-I Camera sled at the East Pacific Rise at 9N during the Thomas Washington expedition VNTR03WT (1989)
Author(s): Haymon, Rachel
Description: This data set was acquired with the towed WHOI Argo-I Camera Sled during Thomas Washington expedition VNTR03WT conducted in 1989 (Chief Scientist: Dr. Rachel Haymon). This data was cited by Wright et al., 1998, Fornari et al., 1998, and Haymon et al., 1991.
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HD Video Digital Still Images from the Lau Back-arc Basin acquired with ROV Jason II during the Thomas G. Thompson expedition TN234 (2009)
Author(s): Resing, Joseph
Description: This data set was acquired with an HD Video Camera on the ROV Jason II during Thomas G. Thompson expedition TN234 conducted in 2009 (Chief Scientist: Dr. Joseph Resing). Data were acquired as part of the project(s): Neovolcanic activity in the NE Lau Basin - Cruise Webpage and Northern Lau/Tonga Eruption Rapid Response - MARGINS, and funding was provided by NSF grant(s): OCE09-29411, OCE09-29881, OCE09-30025, and OCE09-34660.
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Bottom Photos acquired with Argo-II Processed towed Camera Data from the Mid-Atlantic Ridge - Lucky Strike Vent Field during the Knorr expedition KN145-19 (1996)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Camera on the Argo-II towed platform during Knorr expedition KN145-19 conducted in 1996 (Chief Scientist: Dr. Daniel Fornari). Funding was provided by NSF grant OCE95-05579.
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Bottom Photos acquired with the WHOI TowCam at the Galapagos Spreading Center during the Melville expedition MV1007 (2010)
Author(s): Fornari, Daniel
Description: This data set was acquired with a Digital Camera on TowCam during Melville expedition MV1007 conducted in 2010 (Chief Scientist: Dr. Karen Harpp; Investigator(s): Dr. Daniel Fornari). Data were acquired as part of the project(s): FLAMINGO (Formation of Lineaments and Anomalous Magmatism In the Northern Galápagos Ocean), and funding was provided by NSF grant OCE09-26491.
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Bottom Photos acquired with the HOV Alvin at the East Pacific Rise at 9N during the Atlantis expedition AT15-17 (2007)
Author(s): Fornari, Daniel; Klein, Emily
Description: This data set was acquired with a Digital Camera on the ROV Jason II during Atlantis expedition AT15-17 conducted in 2007 (Chief Scientist: Dr. Emily Klein; Investigator(s): Dr. Daniel Fornari and Dr. Emily Klein). Data were acquired as part of the project(s): Anatomy of an Overlapping Spreading Center; Geochemical and Geological Study of the EPR 9deg03minN OSC and Medusa 2007, and funding was provided by NSF grant(s): OCE05-25872, OCE05-25894, OCE05-26120, OCE05-27053, OCE05-27075, and OCE06-39601.
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Deep Tow depth profiles from the East Pacific Rise at 17°S and 19°S (PANR06MV, 1998)
Author(s): Gee, Jeffrey; Parnell-Turner, Ross
Description: These depth profiles were acquired simultaneously with the deep-tow sidescan data (pressure+down: P+DN). The data files are in ASCII format and contain lon, lat, depth (depth is positive downwards). The sidescan sonar data set was collected using the Scripps Institution of Oceanography (SIO) deeply towed instrument package (Deep Tow) at 17°S and 19°S, East Pacific Rise, during cruise PANR06MV (May 1998, chief scientist Jeff Gee). The Deep Tow platform carried a 110 kHz sidescan sonar. The data set was generated as part of the projects called Short Wavelength Magnetic Variations within the Central Anomaly on the Southern EPR, and Along-Axis Continuity of Oceanic Detachment Faults. Funding was provided through NSF awards OCE97-12027, OCE14-59387 and OCE18-39727. DOI: 10.26022/IEDA/329857
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Near-bottom processed sidescan sonar Deep Tow mosaiced grids from the East Pacific Rise at 17°S and 19°S (1998)
Author(s): Gee, Jeffrey; Parnell-Turner, Ross
Description: This data set presents sidescan sonar grid mosaics. The sidescan sonar data set was collected using the Scripps Institution of Oceanography (SIO) deeply towed instrument package (Deep Tow) at 17°S and 19°S, East Pacific Rise, during cruise PANR06MV (May 1998, chief scientist Jeff Gee). The Deep Tow platform carried a 110 kHz sidescan sonar. The binary data files were originally recorded in SIO fish6 format, and were converted to the MB-System-compatible .mb71 format (mbio format 71) for processing. Processing steps included translating time-based sonar data into backscatter records, and laid out into a regular array of pixels that were projected onto a flat seafloor model (swath bathymetric data were not collected). Data were corrected for the variation of amplitude with grazing angle, filtered with a Gaussian mean low-pass filter (across track /along track dimensions of 11 and 3 pixels, respectively), and mosaiced. Processing was carried out with MB-System release 5.7.6, with mosaics for each profile, organized by day, provided as GMT-compatible netCDF grids. The file name letters ZSsCF mean that the time-based Sidescan sonar data were laid out into a regular array of pixels on the seafloor (i.e. depth, Z), mosaiCed, and Filtered. The data set was generated as part of the projects called Short Wavelength Magnetic Variations within the Central Anomaly on the Southern EPR, and Along-Axis Continuity of Oceanic Detachment Faults. Funding was provided through NSF awards OCE97-12027, OCE14-59387 and OCE18-39727. DOI: 10.26022/IEDA/329856
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Bottom Photos acquired with the AUV ABE at the Lau Back-arc Basin during the Kilo Moana expedition KM0417 (2004)
Author(s): Shank, Timothy
Description: This data set was acquired with a Digital Camera on the AUV ABE during Kilo Moana expedition KM0417 conducted in 2004 (Chief Scientist: Dr. Charles Langmuir; Investigator(s): Dr. Timothy Shank). Data were acquired as part of the project(s): LAUB-FLEX: Deep Circulation and Dispersal in the Lau Basin using Floats, Integrated Hydrothermal and Petrological Studies of the Eastern Lau Spreading Center, and Venture Deep Ocean, Lau Basin Expedition 2 of 5, and funding was provided by NSF grant(s): OCE02-41716, OCE02-41785, OCE02-41909, OCE02-41913, OCE02-42114, OCE02-42618, OCE02-42675, and OCE02-42902.
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Bottom Photos acquired with the WHOI TowCam at the Juan de Fuca Spreading Center - Endeavour Segment during the Thomas G. Thompson expedition TN177B (2005)
Author(s): Cowen, James
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Thomas G. Thompson expedition TN177B conducted in 2005 (Chief Scientist: Dr. James Cowen). Data were acquired as part of the project(s): Time-Series Responses to a Mid-Ocean Ridge Volcanic Event and PMEL Deep Ocean Seismicity from Hydroacoustic Monitoring, and funding was provided by NSF grant(s): OCE02-22069.
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Bottom Photos acquired with the WHOI TowCam at the East Pacific Rise at 9N during the Atlantis expedition AT15-17 (2007)
Author(s): Fornari, Daniel; Klein, Emily
Description: This data set was acquired with a Nikon Coolpix 995 Digital Camera on TowCam during Atlantis expedition AT15-17 conducted in 2007 (Chief Scientist: Dr. Emily Klein; Investigator(s): Dr. Daniel Fornari and Dr. Emily Klein). Data were acquired as part of the project(s): Anatomy of an Overlapping Spreading Center; Geochemical and Geological Study of the EPR 9deg03minN OSC and Medusa 2007, and funding was provided by NSF grant(s): OCE05-25872, OCE05-25894, OCE05-26120, OCE05-27053, OCE05-27075, and OCE06-39601.
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Near-bottom processed sidescan sonar Deep Tow data from the East Pacific Rise at 17°S and 19°S (1998)
Author(s): Gee, Jeffrey; Parnell-Turner, Ross
Description: Sidescan sonar data collected using the Scripps Institution of Oceanography (SIO) deeply towed instrument package (Deep Tow) at 17°S and 19°S, East Pacific Rise, during cruise PANR06MV (May 1998, chief scientist Jeff Gee). The Deep Tow platform carried a 110 kHz sidescan sonar. The binary data files were originally recorded in SIO fish6 format, and have been converted to the MB-System-compatible .mb71 format (mbio format 71) for processing. Processing steps included translating time-based sonar data into backscatter records, and laid out into a regular array of pixels that were projected onto a flat seafloor model (swath bathymetric data were not collected). Data were corrected for the variation of amplitude with grazing angle, filtered with a Gaussian mean low-pass filter (across track /along track dimensions of 11 and 3 pixels, respectively), and mosaiced. Processing carried out with MB-System release 5.7.6. The data set was generated as part of the projects called Short Wavelength Magnetic Variations within the Central Anomaly on the Southern EPR, and Along-Axis Continuity of Oceanic Detachment Faults. Funding was provided through NSF awards OCE97-12027, OCE14-59387 and OCE18-39727. DOI: 10.26022/IEDA/329855
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Calibration sheets used with seafloor APG pressure data from trench-perpendicular benchmarks on the Cascadia margin, offshore central Oregon
Author(s): Wilcock, William; MacCready, Parker; Schmidt, David; Roland, Emily; Fredrickson, Erik
Description: This data set presents the calibration sheets that accompany the Absolute Pressure Gauge (APG) data from a set of seafloor benchmarks running trench-perpendicular on the Cascadia margin, offshore central Oregon, beginning in 2015. The information in the calibration sheets was used to convert the APG pressure and temperature time series data from counts to physical units. The pressure gauge sensors were made by Paroscientific and the platforms were designed and deployed by the University of Washington School of Oceanography and Applied Physics Lab (APL). The sensors were attached to free-fall deployed concrete benchmarks designed to also serve as a platform for the Scripps Institution of Oceanography’s Absolute Self-Calibrated Pressure Recorder (ASCPR), to obtain campaign-style drift-free reference pressures (not included in this data set). APGs collect absolute pressure (PSIA, dbar) and temperature (degrees C) data at a period of 100 seconds, and were deployed with battery packs and data storage sufficient for 10 years of data collection. The calibration sheets are in PDF format. There is one calibration sheet for each sensor. This data set was generated as part of the project called Constraints on Interseismic Deformation Offshore Oregon from Calibrated Continuous Pressure Records. Funding was provided through NSF award OCE15-58477. DOI: 10.26022/IEDA/329854
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Continuous seafloor APG pressure and temperature data from trench-perpendicular benchmarks on the Cascadia margin, offshore central Oregon
Author(s): Wilcock, William; MacCready, Parker; Schmidt, David; Roland, Emily; Fredrickson, Erik
Description: This data set presents Absolute Pressure Gauge (APG) pressure and temperature time series data from a set of seafloor benchmarks running trench-perpendicular on the Cascadia margin, offshore central Oregon, beginning in 2015. The pressure gauge sensors were made by Paroscientific and the platforms were designed and deployed by the University of Washington School of Oceanography and Applied Physics Lab (APL). The sensors were attached to free-fall deployed concrete benchmarks designed to also serve as a platform for the Scripps Institution of Oceanography’s Absolute Self-Calibrated Pressure Recorder (ASCPR), to obtain campaign-style drift-free reference pressures (not included in this data set). APGs collect absolute pressure (PSIA, dbar) and temperature (degrees C) data at a period of 100 seconds, and were deployed with battery packs and data storage sufficient for 10 years of data collection. The data were transferred in-situ via wireless communication with an ROV. Each data file is in ASCII comma-separated format and contains continuous time series data from a single sensor. No processing has been done beyond the conversion from counts to physical units - see the calibration sheets in the associated data set. Some sensors failed in 2016 and were redeployed the following year, resulting in separate data files. Instrument deployment and recovery operations were performed during cruises TN332, SKQ201607S, SKQ201705S, RR1716. This data set was generated as part of the project called Constraints on Interseismic Deformation Offshore Oregon from Calibrated Continuous Pressure Records. Funding was provided through NSF award OCE15-58477. DOI: 10.26022/IEDA/329853
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ROV Jason II seafloor bottom photos at the Havre Volcano Caldera in the Kermadec Arc (RR1506, 2015)
Author(s): Soule, S.Adam; Carey, Rebecca
Description: This data set comprises forward-looking still image photographs of the seafloor from the ROV Jason II SuperScorpio camera. The Jason II dives were part of a research expedition to investigate the products of the 2012 eruption of Havre Volcano in the Kermadec Arc and was conducted in 2015 with ROV Jason II and AUV Sentry during Revelle cruise RR1506 (chief scientists Rebecca Carey, Adam Soule). A total of 12 ROV Jason II dives took place in and around the caldera. The pan, tilt, and zoom of the SuperScorpio camera was controlled by the science party. The camera captured one photograph every 10 second but to keep the number of photos manageable, only one photo per minute is presented here. Each image is 12 mega-pixels in size and the file name contains the time of collection. The corresponding position can be obtained from the Jason II navigation and along-track data files. The photographs were collected as part of the project called Elucidating Conduit, Eruption, and Pyroclast Transport Dynamics of Large Silicic Submarine Eruptions. Funding was provided from NSF awards OCE13-57216 to Adam Soule and OCE13-57443 to Bruce Houghton and Rebecca Carey. DOI: 10.26022/IEDA/329851
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Command script for the Pescadero Basin near-bottom processed swath bathymetry grids and images (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This ASCII file contains the command script that was used to generate the project-level processed swath bathymetry gridded data sets (grids in netCDF and ASCII raster format, and images in GeoTIFF format). Those data sets were collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV missions 20150305m1 and 20150306m2 in Pescadero Basin during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329849
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Map of near-bottom processed bathymetry with AUV navigation track line for Pescadero Basin mission 20150305m1 (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin map shows processed bathymetry with the AUV navigation track line data superimposed for MBARI Mapping AUV mission 20150305m1 in 2015. The file is in JPEG image format. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329845
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Pescadero Basin mission 20150306m2 documentation (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This documentation for Pescadero Basin MBARI Mapping AUV mission 20150306m2 comprises a notes file that contains a hand-entered record of the mission and includes data lists, and a processing script that was used to process the data sets. The documentation files are in ASCII format. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329848
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Pescadero Basin mission 20150305m1 documentation (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This documentation for Pescadero Basin MBARI Mapping AUV mission 20150305m1 comprises a notes file that contains a hand-entered record of the mission and includes data lists, and a processing script that was used to process the data sets. The documentation files are in ASCII format. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329847
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Map of near-bottom processed bathymetry with AUV navigation track line for Pescadero Basin mission 20150306m2 (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin map shows processed bathymetry with AUV navigation track line data superimposed for MBARI Mapping AUV mission 20150306m2 in 2015. The file is in JPEG image format. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329846
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Pescadero Basin mission 20150306m2 near-bottom processed CTD data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed CTD data set was collected with a SeaBird SBE-49 FastCat system on MBARI Mapping AUV mission 20150306m2 in 2015. The data file is in ASCII format and contains processed conductivity, temperature, pressure, salinity, sound velocity and potential temperature data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329844
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Pescadero Basin mission 20150305m1 near-bottom processed CTD data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed CTD data set was collected with a SeaBird SBE-49 FastCat system on MBARI Mapping AUV mission 20150305m1 in 2015. The data file is in ASCII format and contains processed conductivity, temperature, pressure, salinity, sound velocity and potential temperature data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329843
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Pescadero Basin mission 20150306m2 near-bottom processed sub-bottom data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150306m2 in 2015. The data files are in SEG-Y format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329840
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Pescadero Basin mission 20150306m2 near-bottom processed sub-bottom data profile images (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150306m2 in 2015. The data profiles are in JPEG format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329842
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Pescadero Basin mission 20150305m1 near-bottom processed sub-bottom data profile images (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150305m1 in 2015. The data profiles are in JPEG format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329841
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Pescadero Basin mission 20150305m1 near-bottom processed sub-bottom data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150305m1 in 2015. The data files are in SEG-Y format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329839
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Pescadero Basin mission 20150306m2 near-bottom raw MVC logs data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin raw MVC logs data set was collected on MBARI Mapping AUV mission 20150306m2 in 2015. It contains the Main Vehicle Computer log files, in binary formats. The data files are served in a tar bundle. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329838
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Pescadero Basin mission 20150305m1 near-bottom raw MVC logs data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin raw MVC logs data set was collected on MBARI Mapping AUV mission 20150305m1 in 2015. It contains the Main Vehicle Computer log files, in binary formats. The data files are served in a tar bundle. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329837
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Pescadero Basin mission 20150306m2 near-bottom processed sidescan data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sidescan data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150306m2 in 2015. The data files are in MB-System-compatible format (mbio format 71) and contain processed sidescan data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329836
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Pescadero Basin mission 20150305m1 near-bottom processed sidescan data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin processed sidescan data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150305m1 in 2015. The data files are in MB-System-compatible format (mbio format 71) and contain processed sidescan data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329835
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Pescadero Basin mission 20150306m2 near-bottom raw sidescan and sub-bottom data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin raw sidescan and sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150306m2 in 2015. The data files are in JSF format (compatible with MB-System as mbio format 132) and contain raw sidescan and sub-bottom data that has not been merged with navigation. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329834
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Pescadero Basin mission 20150305m1 near-bottom raw sidescan and sub-bottom data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin raw sidescan and sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20150305m1 in 2015. The data files are in JSF format (compatible with MB-System as mbio format 132) and contain raw sidescan and sub-bottom data that has not been merged with navigation. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329833
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Pescadero Basin mission 20150306m2 near-bottom processed swath bathymetry and acoustic backscatter data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20150306m2 in 2015. The data files are in MB-System-compatible format (mbio format 88) and contain processed swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329832
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Pescadero Basin mission 20150305m1 near-bottom processed swath bathymetry and acoustic backscatter data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20150305m1 in 2015. The data files are in MB-System-compatible format (mbio format 88) and contain processed swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329831
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Pescadero Basin mission 20150306m2 near-bottom raw swath bathymetry and acoustic backscatter data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20150306m2 in 2015. The data files are in Reson s7k format (compatible with MB-System as mbio format 88) and contain raw swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329830
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Pescadero Basin mission 20150305m1 near-bottom raw swath bathymetry and acoustic backscatter data (2015)
Author(s): Caress, David; Clague, David; Paduan, Jennifer; Zierenberg, Robert; Spelz-Madero, Ronald
Description: This Pescadero Basin swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20150305m1 in 2015. The data files are in Reson s7k format (compatible with MB-System as mbio format 88) and contain raw swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2015 R/V Rachel Carson cruise RCSN234 (chief scientist Dave Caress). DOI: 10.26022/IEDA/329829
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2020-09-01

Heat flow and thermal gradient data for the HD-YLAKE project, Yellowstone Lake, 2016-2018
Author(s): Harris, Robert; Favorito, Julia; Sohn, Robert
Description: This data set consists of thermal gradients and thermal conductivity to compute the heat flux. Determinations of heat flux are in and around the Stevenson Island vent field, Yellowstone Lake, Yellowstone National Park, USA. The data have been processed to convert from resistance to temperature using calibrations for each thermistor. Heat flow was estimated by combining the thermal gradient and thermal conductivity using the Bullard method. The data set was collected using the ROV heat flow probe from the WHOI Deep Submergence Facility. The heat flow probe was deployed with ROV Yogi from R/V Annie which was operated by Global Foundation for Ocean Exploration. Each probe deployment lasted approximately 15 minutes. The data file is in comma-separated ASCII format and the first row gives the column headers and units. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation under grant EAR-1515283. DOI: 10.26022/IEDA/329828
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Raw seafloor magnetotelluric data acquired over the Mendocino Fracture Zone, 2017-2018
Author(s): Constable, Steven
Description: These passive raw seafloor electric and magnetic field time series data files were acquired in 2017 and 2018 using SIO Mk III OBEM seafloor magnetotelluric/electromagnetic sensors deployed during the Mendocino Fracture Zone project (https://marineemlab.ucsd.edu/Projects/Mendocino/) in the eastern Pacific Ocean, across the Mendocino fracture zone at 131.5 degrees west longitude. The instruments, data format, and playback software are described at https://marineemlab.ucsd.edu/instruments/. The OBEM instruments were deployed during Rvelle cruise RR1719. The data files are in the Scripps EM data logger binary format. The fifth channel recorded is seismic/pressure, either DPG or hydrophone. The data files were generated as part of the project called The Mendocino Fracture Zone: A natural laboratory to study aging of the lithosphere and asthenosphere. Funding was from NSF award OCE-1736590 and UC ship funds. DOI: 10.26022/IEDA/329827
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Microearthquake focal mechanisms from the detachment faulting system at 13°N, Mid-Atlantic Ridge, obtained using data collected in January 2016
Author(s): Sohn, Robert; Parnell-Turner, Ross; Peirce, Christine; Reston, Tim; MacLeod, Christopher; Searle, Roger
Description: This earthquake hypocenter focal mechanisms table is derived from short-period ocean-bottom seismograph data, recorded over 10.7 days in 2016. The data file is an ASCII format and contains 100 events with focal mechanisms at grade A, B, or C calculated in HASH, constrained by 10 or more stations. The header line specifies the columns, with depth being in kilometers beneath the seafloor. The focal mechanisms and associated hypocenters are presented in Parnell-Turner, R., Sohn, R.A., Peirce, C., Reston, T.J., Macleod, C.J., Searle, R.C. and Simao, N.M (accepted). Seismicity trends and detachment fault structure at 13°N, Mid-Atlantic Ridge, Geology. The data set was generated as part the projects called Along-Axis Continuity of Oceanic Detachment Faults, and Seismicity and Fault Structure of Oceanic Detachment Faults. Funding was provided through NSF awards OCE14-58084 and OCE18-39727, and from UK NERC grants. DOI: 10.26022/IEDA/329825
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Three-dimensional visualization of seismicity and multibeam bathymetry at 13°N, Mid-Atlantic Ridge
Author(s): Sohn, Robert; Parnell-Turner, Ross; Peirce, Christine; Reston, Tim; MacLeod, Christopher; Searle, Roger
Description: This three-dimensional visualization of microearthquakes and multibeam bathymetric data was rendered using Fledermaus software. The visualization file is in MPEG4 format. The hypocenters shown in the visualization are presented in Parnell-Turner, R., Sohn, R.A., Peirce, C., Reston, T.J., Macleod, C.J., Searle, R.C. and Simao, N.M (accepted). Seismicity trends and detachment fault structure at 13°N, Mid-Atlantic Ridge, Geology. The data set was generated as part the projects called Along-Axis Continuity of Oceanic Detachment Faults, and Seismicity and Fault Structure of Oceanic Detachment Faults. Funding was provided through NSF awards OCE14-58084 and OCE18-39727, and from UK NERC grants. DOI: 10.26022/IEDA/329826
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Microearthquake hypocenter catalog from the detachment faulting system at 13°N, Mid-Atlantic Ridge, obtained using data collected in January 2016
Author(s): Sohn, Robert; Parnell-Turner, Ross; Peirce, Christine; Reston, Tim; MacLeod, Christopher; Searle, Roger
Description: This earthquake hypocenter catalog is derived from short-period ocean-bottom seismograph data, recorded over 10.7 days in 2016. The data file is an ASCII format and contains 2405 double-difference relocated events constrained by 10 or more stations. The header line specifies the columns, with depth being in kilometers beneath the seafloor. The hypocenters and associated focal mechanisms are presented in Parnell-Turner, R., Sohn, R.A., Peirce, C., Reston, T.J., Macleod, C.J., Searle, R.C. and Simao, N.M (accepted). Seismicity trends and detachment fault structure at 13°N, Mid-Atlantic Ridge, Geology. The data set was generated as part the projects called Along-Axis Continuity of Oceanic Detachment Faults, and Seismicity and Fault Structure of Oceanic Detachment Faults. Funding was provided through NSF awards OCE14-58084 and OCE18-39727, and from UK NERC grants. DOI: 10.26022/IEDA/329824
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DSL-120 processed sidescan (GeoTIFF grid format) of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed sidescan data covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data are provided at 4-m lateral resolution. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The file is in GeoTIFF grid format. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329821
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DSL-120 processed phase bathymetry and sidescan swath data of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed DSL-120 swath files covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The swath files are in in MB-System format mb141. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329822
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DSL-120 processed sidescan (NetCDF format) of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed sidescan data covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data are provided at 4-m lateral resolution. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The file is in GMT-compatible NetCDF grid format. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329820
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DSL-120 processed phase bathymetry (NetCDF format) of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed phase bathymetry covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data are provided as the whole coverage at 4-m lateral lateral resolution, and split into two tiles (northern half and southern half) each with 2-m lateral resolution. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The files are in GMT-compatible NetCDF grid format. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329817
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DSL-120 processed phase bathymetry (GeoTIFF image format) of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed phase bathymetry covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data are provided as the whole coverage at 4-m lateral lateral resolution, and split into two tiles (northern half and southern half) each with 2-m lateral resolution. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The files are in GeoTIFF image format. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329819
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DSL-120 processed phase bathymetry (ESRI ASCII format) of the Juan de Fuca Ridge southern Cleft Segment from Thompson cruise TN082 (1998)
Author(s): Caress, David; Chadwick, William; Clague, David; Paduan, Jennifer; Stakes, Debra
Description: Processed phase bathymetry covering the axis of the southern Cleft Segment of the Juan de Fuca Ridge from the known sites of hydrothermal venting (Vent 1, Vent 3, and Plume) to the Blanco Transform. Data are provided as the whole coverage at 4-m lateral lateral resolution, and split into two tiles (northern half and southern half) each with 2-m lateral resolution. Data were collected with the WHOI DSL-120 sidescan sonar towed 100m off the seafloor during the 1998 R/V Thompson cruise TN082 (Bill Chadwick, chief scientist). The files are in ESRI ASCII grid format. Funding for the DSL-120 mapping project was provided by MBARI. DOI: 10.26022/IEDA/329818
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Bathymetry data (GeoTIFF image format) of the Northern Adriatic Tegnùe di Chioggia site collected in 2014-2015 for the DeFishGear project
Author(s): Fortibuoni, Tomaso; Canese, Simonepietro; Bortoluzzi, Giovanni; Franceschini, Gianluca; Giovanardi, Otello
Description: In the framework of the IPA Adriatic DeFishGear project (Derelict Fishing Gear Management System in the Adriatic region, www.defishgear.net), a two-year campaign for monitoring the typologies, abundance and distribution of marine litter in the Natura 2000 site "Tegnùe di Chioggia" (https://natura2000.eea.europa.eu/Natura2000/SDF.aspx?site=IT3250047) was performed. The site is characterized by the presence of localized coralligenous buildups, widespread along the northwestern Adriatic Sea inner shelf between 10 and 40 m depths. These rocky buildups rise up to 3–4 m above the sandy-mud seafloor and have a patchy distribution. A variety of benthic calcareous constituents contribute to their growth, including bryozoans, molluscs, serpulid polychaetes, scleractinians and calcareous algae, the latter acting as the main bio-constructors. According to the European Habitats Directive (92/43/EEC), the marine rocky outcrop classification is included in the Annex I habitat types as "1170-Reefs" and "1180-Submarine structures made by leaking gases". The data on marine debris was collected with a Remotely Operating Vehicle (ROV) during two expeditions performed in May–June 2014 and July 2015 onboard the R/V Astrea of the Italian National Institute for Environmental Protection and Research (ISPRA) (Melli et al. 2017). The study area was mapped using a Kongsberg EM 2040 Multibeam (Kongsberg, Norway) to localize the rocky outcrops and to distinguish between soft and hard substrates. Here we present the maps of the main outcrops monitored in the site "Tegnùe di Chioggia" as well as other scattered outcrops in the area nearby. The processed data files were gridded at 0.5m resolution. The image files provided here are in GeoTIFF image format. DOI: 10.26022/IEDA/329816
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Bathymetry data (GeoTIFF grid format) of the Northern Adriatic Tegnùe di Chioggia site collected in 2014-2015 for the DeFishGear project
Author(s): Fortibuoni, Tomaso; Canese, Simonepietro; Bortoluzzi, Giovanni; Franceschini, Gianluca; Giovanardi, Otello
Description: In the framework of the IPA Adriatic DeFishGear project (Derelict Fishing Gear Management System in the Adriatic region, www.defishgear.net), a two-year campaign for monitoring the typologies, abundance and distribution of marine litter in the Natura 2000 site "Tegnùe di Chioggia" (https://natura2000.eea.europa.eu/Natura2000/SDF.aspx?site=IT3250047) was performed. The site is characterized by the presence of localized coralligenous buildups, widespread along the northwestern Adriatic Sea inner shelf between 10 and 40 m depths. These rocky buildups rise up to 3–4 m above the sandy-mud seafloor and have a patchy distribution. A variety of benthic calcareous constituents contribute to their growth, including bryozoans, molluscs, serpulid polychaetes, scleractinians and calcareous algae, the latter acting as the main bio-constructors. According to the European Habitats Directive (92/43/EEC), the marine rocky outcrop classification is included in the Annex I habitat types as "1170-Reefs" and "1180-Submarine structures made by leaking gases". The data on marine debris was collected with a Remotely Operating Vehicle (ROV) during two expeditions performed in May–June 2014 and July 2015 onboard the R/V Astrea of the Italian National Institute for Environmental Protection and Research (ISPRA) (Melli et al. 2017). The study area was mapped using a Kongsberg EM 2040 Multibeam (Kongsberg, Norway) to localize the rocky outcrops and to distinguish between soft and hard substrates. Here we present the maps of the main outcrops monitored in the site "Tegnùe di Chioggia" as well as other scattered outcrops in the area nearby. The processed data files were gridded at 0.5m resolution. The files are in GeoTIFF grid format. DOI: 10.26022/IEDA/329815
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Single-beam bathymetry data (GeoTIFF image format) of selected mesophotic biogenic reefs from the northern Adriatic Sea
Author(s): Ponti, Massimo
Description: These annotated GeoTIFF images of processed bathymetry were generated from single-beam sonar data collected in 2003-2007 as a part of ecological surveys carried out by the University of Bologna, Italy. The bathymetry data was acquired using a Lowrance HDS sonar operating at 200 kHz coupled with a WAAS-enabled D-GPS for navigation, and was processed by means of the kriging interpolation method using Surfer Golden Software. In most cases, the XY grid spacing was set at 0.5 m, but, in some cases according to areal coverage of data, was set to finer or coarser spacings: 1 m for TC2, Term14, TM1, TM4); 2 m for P208; and, 0.1 m for TSO. Depth values were tide-corrected and referred to the Mean Lower Low Water (MLLW) based on astronomical tide prediction (calculated by WXTide32 software using harmonic data for the nearest available station, i.e. Chioggia or Malamocco). The grid projection is in WGS84 / UTM Zone 33N (EPSG:32633). These bathymetry images are provided in GeoTIFF image format and correspond to the associated ESRI ASCII bathymetry grids in the related data set. The lead investigator for this project was Massimo Ponti. DOI: 10.26022/IEDA/329814
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LIS phase 2 LDEO sediment grab bottom photos (2017, 2018)
Author(s): Nitsche, Frank; Kenna, Timothy; McHugh, Cecilia
Description: These seafloor bottom photos were collected as part of the Long Island Sound mapping phase 2 project. During three surveys in 2017 and 2018 aboard the research vessels Pritchard and Seawolf, a GoPro Hero 6 video camera was mounted on the frame of a sediment grab device. The camera was set to record video during the sediment sampling operations. The videos were processed using open-source Shotcut software (www.shotcut.org). The Shotcut video editor was then used to extract frame grab still images after identifying the best image of the seafloor. These still images are in JPEG format. An exiftool script was later used to add the location to each still image file. During the first survey, in 2017, the camera was deployed without external lights and the image was dark below water depths of 8-10m. As result there are some grab stations for which no usable bottom photos exists. For the later surveys, external artificial lights were deployed (Sola video lights, model 3800). These lights allowed video images to be collected in deeper waters. The location of each JPEG image was tagged in the EXIF header with the coordinate information for the corresponding sediment grab station. Location information is based on DGPS navigation using the ship GPS antenna. Lateral offset between the ship GPS antenna and the grab sampling device, and drift of the grab sampling device in the water, have not been corrected. The resulting uncertainty in true position could be on the order of 5-10m. Funding was provided by the Long Island Sound Mapping Fund administered cooperatively by the EPA Long Island Sound Study and the Connecticut Department of Energy and Environmental Protection (DEEP). DOI: 10.26022/IEDA/329812
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LIS phase 2 LDEO sediment grab bottom videos (2017, 2018)
Author(s): Nitsche, Frank; Kenna, Timothy; McHugh, Cecilia
Description: These seafloor bottom video clips were collected as part of the Long Island Sound mapping phase 2 project. During three surveys in 2017 and 2018 aboard the research vessels Pritchard and Seawolf, a GoPro Hero 6 video camera was mounted on the frame of a sediment grab device. The camera was set to record video during the sediment sampling operations. The videos were processed using open-source Shotcut software (www.shotcut.org). The videos were clipped to focus upon the time that the sediment grab was close to the seafloor. These video clips are in MP4 format. Still images extracted as frame grabs from these videos are available as a related data set. During the first survey, in 2017, the camera was deployed without external lights and the image was dark below water depths of 8-10m. As result there are some grab stations for which no usable bottom videos exists. For the later surveys, external artificial lights were deployed (Sola video lights, model 3800). These lights allowed video images to be collected in deeper waters. The location of each JPEG image was tagged with the coordinate information for the corresponding sediment grab station. Location information is based on DGPS navigation using the ship GPS antenna. Lateral offset between the ship GPS antenna and the grab sampling device, and drift of the grab sampling device in the water, have not been corrected. The resulting uncertainty in true position could be on the order of 5-10m. Funding was provided by the Long Island Sound Mapping Fund administered cooperatively by the EPA Long Island Sound Study and the Connecticut Department of Energy and Environmental Protection (DEEP). DOI: 10.26022/IEDA/329813
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Processed multi-channel seismic data (SEG-Y format) for 49.3-75.6 Ma equatorial Atlantic ocean floor acquired in 2015 as part of the TransAtlanticILAB project
Author(s): Singh, Satish; Audhkhasi, Pranav
Description: These processed MCS files are part of a seismic investigation of the Lithosphere-Asthenosphere Boundary (LAB) for the African plate in the equatorial Atlantic ocean from 49.3-75.6 Ma (investigator Satish Singh). The data is cited in Audhkhasi et al. (2020). This multi-channel seismic data is in SEG-Y format was acquired in individual sequences starting from sequence 1 (eastern most) to sequence 4 (western most) using a 12 km long streamer. These sequences were merged to give a ~400 km continuous flow line from 49.3-75.6 Ma. Processing of the MCS data focused on deeper Earth reflections, particularly the Lithosphere-Asthenosphere Boundary (LAB), and is described in the supplementary figure S1 of Audhkhasi et al. (2020). Final processed data files (SEG-Y format) in two-way time and depth converted using a 1-D velocity (supplementary figure S5) are made available along with their associated images (PNG format). Additionally, the zoom-in of the near surface showing the seafloor and basement interfaces (supplementary figure S2) is also provided. The residual mantle bouguer anomaly (RMBA) along the profile is available in a related data set. This study was carried out from March-April 2015 and is funded by the ERC Advance Grant agreement No. 339442 TransAtlanticILAB. DOI: 10.26022/IEDA/329809
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Residual mantle bouguer anomaly (RMBA) and crustal age data for part of the TransAtlanticILAB project
Author(s): Singh, Satish; Audhkhasi, Pranav
Description: This data file is the residual mantle bouguer anomaly (RMBA) and crustal age along the seismic profile. The RMBA (units mgal) was calculated by first removing from the free-air gravity anomaly (Sandwell et al., 2014) the gravitational effects of the water-sediment and sediment-crust interfaces (Parker, 1973). The gravitational effect of lithospheric plate cooling was modeled (Kuo and Forsyth, 1988) and removed to derive the residual mantle bouguer anomaly (see caption of figure 3c in Audhkhasi et al., 2020). The crustal age of the seafloor was taken from Muller et al. (2008). The data is cited in Audhkhasi et al., 2020 and the work was funded by the ERC Advance Grant agreement No. 339442 TransAtlanticILAB. The lead investigator is Satish Singh. DOI: 10.26022/IEDA/329811
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Processed multi-channel seismic profile images (PNG format) for 49.3-75.6 Ma equatorial Atlantic ocean floor acquired in 2015 as part of the TransAtlanticILAB project
Author(s): Singh, Satish; Audhkhasi, Pranav
Description: These processed MCS image files are part of a seismic investigation of the Lithosphere-Asthenosphere Boundary (LAB) for the African plate in the equatorial Atlantic ocean from 49.3-75.6 Ma (investigator Satish Singh). The data is cited in Audhkhasi et al. (2020). This multi-channel seismic data is in SEG-Y format was acquired in individual sequences starting from sequence 1 (eastern most) to sequence 4 (western most) using a 12 km long streamer. These sequences were merged to give a ~400 km continuous flow line from 49.3-75.6 Ma. Processing of the MCS data focused on deeper Earth reflections, particularly the Lithosphere-Asthenosphere Boundary (LAB), and is described in the supplementary figure S1 of Audhkhasi et al. (2020). Final processed data files (SEG-Y format) in two-way time and depth converted using a 1-D velocity (supplementary figure S5) are made available along with their associated images (PNG format). Additionally, the zoom-in of the near surface showing the seafloor and basement interfaces (supplementary figure S2) is also provided. The residual mantle bouguer anomaly (RMBA) along the profile is available in a related data set. This study was carried out from March-April 2015 and is funded by the ERC Advance Grant agreement No. 339442 TransAtlanticILAB. DOI: 10.26022/IEDA/329810
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Multi-Channel Seismic Shot Data from the Juan de Fuca Axial Seamount area acquired during Langseth cruise MGL1905 (2019)
Author(s): Arnulf, Adrien; Saustrup, Steffen; Harding, Alistair; Kent, Graham; Kell, Anna
Description: This data set was acquired with the LDEO Multi-Channel Seismic system during the 2019 R/V Marcus G. Langseth cruise MGL1905 (Co-Chief Scientists: Adrien Arnulf, Steffen Saustrup, Alistair Harding). These data files are in SEG-D format and contain Multi-Channel Seismic Reflection shot data that has not been processed. The data set was acquired as part of the project called Collaborative Research: Axial 3-D - Exploring the linkages between complex magma chamber structure, caldera dynamics, fluid pathways and hydrothermal venting. Funding was provided by NSF awards OCE16-58018, OCE16-58021, OCE16-58199. DOI: 10.26022/IEDA/329808
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2020-08-01

Raw Seismic Navigation Data (P1 format) from the Juan de Fuca Axial Seamount area acquired during Langseth cruise MGL1905 (2019)
Author(s): Arnulf, Adrien; Saustrup, Steffen; Harding, Alistair; Kent, Graham; Kell, Anna
Description: This data set was acquired with the LDEO Multi-Channel Seismic system during the 2019 R/V Marcus G. Langseth cruise MGL1905 (Co-Chief Scientists: Adrien Arnulf, Steffen Saustrup, Alistair Harding). The data files are in U.K.O.O.A. P1/90 format and contain Seismic Navigation data that has not been processed. The data set was acquired as part of the project called Collaborative Research: Axial 3-D - Exploring the linkages between complex magma chamber structure, caldera dynamics, fluid pathways and hydrothermal venting. Funding was provided by NSF awards OCE16-58018, OCE16-58021, OCE16-58199. DOI: 10.26022/IEDA/329805
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Raw Seismic Navigation Data (P2 format) from the Juan de Fuca Axial Seamount area acquired during Langseth cruise MGL1905 (2019)
Author(s): Arnulf, Adrien; Saustrup, Steffen; Harding, Alistair; Kent, Graham; Kell, Anna
Description: This data set was acquired with the LDEO Multi-Channel Seismic system during the 2019 R/V Marcus G. Langseth cruise MGL1905 (Co-Chief Scientists: Adrien Arnulf, Steffen Saustrup, Alistair Harding). The data files are in U.K.O.O.A. P2/94 format and contain Seismic Navigation data that has not been processed. The data set was acquired as part of the project called Collaborative Research: Axial 3-D - Exploring the linkages between complex magma chamber structure, caldera dynamics, fluid pathways and hydrothermal venting. Funding was provided by NSF awards OCE16-58018, OCE16-58021, OCE16-58199. DOI: 10.26022/IEDA/329807
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Processed Seismic Navigation Data (P1 format) from the Juan de Fuca Axial Seamount area acquired during Langseth cruise MGL1905 (2019)
Author(s): Arnulf, Adrien; Saustrup, Steffen; Harding, Alistair; Kent, Graham; Kell, Anna
Description: This data set was acquired with the LDEO Multi-Channel Seismic system during the 2019 R/V Marcus G. Langseth cruise MGL1905 (Co-Chief Scientists Adrien Arnulf, Steffen Saustrup, Alistair Harding). The data files are in U.K.O.O.A. P1/90 format and contain Seismic Navigation data that was processed after acquisition. The data set was acquired as part of the project called Collaborative Research: Axial 3-D - Exploring the linkages between complex magma chamber structure, caldera dynamics, fluid pathways and hydrothermal venting. Funding was provided by NSF awards OCE16-58018, OCE16-58021, OCE16-58199. DOI: 10.26022/IEDA/329806
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Deep-tow total magnetic field data collected over the south-eastern corner of the East Manus Basin, Bismarck Sea, 2016-2017.
Author(s): Parianos, John
Description: This data set consists of processed total magnetic field data collected with an Applied Physics Systems 534D Fluxgate magnetometer attached to a deep-tow sled system towed behind the cruise vessel. A total of 69 survey lines were collected, oriented along N36E, and covered a roughly 44x24 km area encompassing the Tumai and Bugave Ridges, as well as the Kaia Natai volcano. The data file is written in the TetGen ASCII NODE format (https://wias-berlin.de/software/tetgen/fformats.node.html) with the following columns: point_index, UTM x (m), UTM y (m), elevation (m), total magnetic field (nT). The UTM zone is 56M, with a reference meridian of 153 degrees E. The IGRF is not removed from the total magnetic field data column. All data were collected by Nautilus Minerals from December 2016 to March 2017, in collaboration with the Mineral Resources Authority of Papua New Guinea. The cruise was funded by Nautilus Minerals. DOI: 10.26022/IEDA/329804
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Single-beam bathymetry data (ESRI ASCII grid format) of selected mesophotic biogenic reefs from the northern Adriatic Sea
Author(s): Ponti, Massimo
Description: These processed bathymetry grids were generated from single-beam sonar data collected in 2003-2007 as a part of ecological surveys carried out by the University of Bologna, Italy. The bathymetry data was acquired using a Lowrance HDS sonar operating at 200 kHz coupled with a WAAS-enabled D-GPS for navigation, and was processed by means of the kriging interpolation method using Surfer Golden Software. In most cases, the XY grid spacing was set at 0.5 m, but, in some cases according to areal coverage of data, was set to finer or coarser spacings: 1 m for TC2, Term14, TM1, TM4; 2 m for P208; and, 0.1 m for TSO. Depth values were tide-corrected and referred to the Mean Lower Low Water (MLLW) based on astronomical tide prediction (calculated by WXTide32 software using harmonic data for the nearest available station, i.e. Chioggia or Malamocco). The grid projection is in WGS84 / UTM Zone 33N (EPSG:32633). These bathymetry grids are provided in ESRI ASCII grid format and correspond to the annotated GeoTIFF images in the related data set. The lead investigator for this project was Massimo Ponti. DOI: 10.26022/IEDA/329803
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Gas hydrate assessment of public industry well logs from the Barents and Norwegian Seas
Author(s): Cook, Ann; Heber, Ryan; Portnov, Alexey
Description: This data set contains a gas hydrate assessment from 64 petroleum industry wells in the Barents and Norwegian Seas. Well log data was obtained from the Norwegian Petroleum Directorate. The gas hydrate stability zone was identified for each well, based on the available gas sample data (or an assumed gas mix), bottom water temperature, bottom hole temperature and hydrostatic pressure. The data is evaluated using resistivity and gamma ray well logs. Some wells had additional data such as P-wave velocity and bulk density which was used when available. A background resistivity was identified or calculated for each hole and resistivity increases above background (0.5 ohm-m and above) were used to identify potential gas hydrate accumulations. The highest resistivities above background were categorized as "A" accumulations, and the lowest were categorized as "D", following the categorization of Majumdar et al., 2017 (Marine and Petroleum Geology). The data file is in tab-separated ASCII text format, with column headers. The data set was generated as part the project called Carbon storage in widespread low-saturation gas hydrate systems. Funding was provided from NSF CAREER award OCE17-52882. DOI: 10.26022/IEDA/329783
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AUV Sentry navigation and along-track data at the Havre Volcano Caldera in the Kermadec Arc (RR1506, 2015)
Author(s): Soule, S.Adam; Carey, Rebecca
Description: A research expedition to investigate the products of the 2012 eruption of Havre Volcano in the Kermadec Arc was conducted in 2015 with ROV Jason II and AUV Sentry during Revelle cruise RR1506 (chief scientists Rebecca Carey, Adam Soule). A total of 12 AUV Sentry dives were conducted in and around the caldera. Along-track geophysical and water-column data was collected by AUV Sentry during these deployments. The Sentry along-track data is sampled at 1Hz and provided here as ASCII text files, with column headers. Data was collected and processed as part of the project called Elucidating Conduit, Eruption, and Pyroclast Transport Dynamics of Large Silicic Submarine Eruptions. Funding was provided from NSF awards OCE13-57216 to Adam Soule and OCE13-57443 to Bruce Houghton and Rebecca Carey. DOI: 10.26022/IEDA/329778
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AUV Sentry near-bottom bathymetry data at the Havre Volcano Caldera in the Kermadec Arc (RR1506, 2015)
Author(s): Soule, S.Adam; Carey, Rebecca
Description: A research expedition to investigate the products of the 2012 eruption of Havre Volcano in the Kermadec Arc was conducted in 2015 with ROV Jason II and AUV Sentry during Revelle cruise RR1506 (chief scientists Rebecca Carey, Adam Soule). A total of 12 AUV Sentry dives were conducted in and around the caldera. Multibeam bathymetry data was collected by AUV Sentry during these deployments. The multibeam bathymetry data was corrected for tides and manually processed with the MB-System software. The cleaned bathymetry data is gridded at 1m resolution. The data files are in GMT-compatible netCDF grid format and were generated as part of the project called Elucidating Conduit, Eruption, and Pyroclast Transport Dynamics of Large Silicic Submarine Eruptions. Funding was provided from NSF awards OCE13-57216 to Adam Soule and OCE13-57443 to Bruce Houghton and Rebecca Carey. DOI: 10.26022/IEDA/329779
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ROV Jason II navigation and along-track data at the Havre Volcano Caldera in the Kermadec Arc (RR1506, 2015)
Author(s): Soule, S.Adam; Carey, Rebecca
Description: A research expedition to investigate the products of the 2012 eruption of Havre Volcano in the Kermadec Arc was conducted in 2015 with ROV Jason II and AUV Sentry during Revelle cruise RR1506 (chief scientists Rebecca Carey, Adam Soule). A total of 12 ROV Jason II dives were conducted in and around the caldera. Jason II navigation and along-track data are sampled at 1Hz and provided here as ASCII comma-separated text files, with column headers. Data was collected and processed as part of the project called Elucidating Conduit, Eruption, and Pyroclast Transport Dynamics of Large Silicic Submarine Eruptions. Funding was provided from NSF awards OCE13-57216 to Adam Soule and OCE13-57443 to Bruce Houghton and Rebecca Carey. DOI: 10.26022/IEDA/329771
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Machine-learning predicted logarithmic values of marine benthic vertical sediment accumulation rate on the seafloor
Author(s): Restreppo, Giancarlo; Wood, Warren; Phrampus, Benjamin
Description: This data set consists of logarithmic values of machine-learning-based vertical sediment accumulation rates along the seafloor, globally. The Geospatial Predictive Seafloor Model (GPSM) of the United States Naval Research Laboratory was trained on real-world observations from 89 peer-reviewed sources (n = 1031) to predict marine accumulation rates on a 5-arc-minute map using a k-nearest neighbor algorithm. Original (non-log space values) are in cm/yr. The model and results are described in Restreppo et al. (2020). The data files are in netCDF grid format. The file called prediction.nc contains the predicted sediment accumulation rate in cm/yr. File prediction_sdev.nc is the standard deviation. DOI: 10.26022/IEDA/329769
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2020-07-01

Pre-stack Depth Migrated (PSDM) seismic reflection data across the NE Hawaiian Arch (NE of Oahu) from JAMSTEC cruise KR17-4 (2017)
Author(s): Yamashita, Mikiya; Nakrong, Nipaporn
Description: Seismic refraction and multi-channel seismic reflection surveys were conducted on the northeastern Hawaiian Arch to examine the effect of hotspot volcanism on the seismic structure of the crust and uppermost mantle. The original multi-channel seismic data acquisition and processing was done by JAMSTEC. The pre-stack depth migration processing was carried out at University of Hawaii. The JAMSTEC Kairei system cosnisted of an airgun source volume of 7800 cubic inches, and 444-channel x 12.5 m receivers. The processed PSDM data is stored in SEG-Y format nd is referenced in the Ohira et al., 2018 paper. This data set was generated as part of the project called Oceanic Crustal Structure of the NE Hawaiian Arch, and funding was provided through NSF award OCE13-55468.
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Catalog of impulsive acoustic events identified for the April-May 2015 eruption of Axial Seamount
Author(s): Bohnenstiehl, DelWayne; Mann, M.Everett
Description: Impulsive acoustic events were identified on station AXEC2 by matching waveforms against a suite of 817 waveform templates chosen from isolated arrivals, with high signal-to-noise, that span the eruptive period. Template matching using three-component (HDH, HHZ, and HHN) waveforms returned a set of >37,000 detections (correlation coefficient >0.7). For each detection on AXEC2, the vertical (HHZ) channel waveform was cross-correlated against the other six OOI stations within the caldera to precisely determine the time of the first (sea surface-reflected) and second (sea surface- and seafloor-reflected) arriving phases across the network. Locations were determined using a grid search with a 25 x 25 m spatial resolution. Travel times for both phases were computed assuming a planar sloping seafloor between the source and each receiver with a constant sound velocity of 1485 m/s. The final catalog contains locations for ~22,000 impulsive sounds constrained using at least 7 arriving phases, with an average root mean square error of 0.022 sec. The mean location uncertainty is ~140 m (chi-squared – misfit at 68% confidence). The peak amplitude of each arrival was measured and corrected for geometric spreading loss to estimate the source level (units of dB are 1 micro-Pa @ 1 m). There are additional range-dependent location biases related to anomalies in the water column velocity structure and unmodeled bathymetric effects, which influence the travel times of the sea surface- and seafloor-bouncing arrivals recorded in the caldera. See Le Saout et al. (2020 G-Cubed) for discussion. The data file is in comma-separated ASCII text format and contains the latitude, longitude, acoustic source level, and origin time (year, month, day, hour, minute, second) for acoustic events associated with lava extrusion during the April-May 2015 eruption of Axial Seamount. The data file was generated as part of a project called Research: Earthquake Catalog and Waveform Analysis to Assess the Evolution of Axial Seamount Surrounding the 2015 Eruption. Funding was provided by NSF grant OCE16-35276. DOI: 10.26022/IEDA/329763
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GeoTIFF images of gridded near-bottom bathymetry from the north rift zone of Axial Seamount (2016 RCSN392 survey)
Author(s): Clague, David; Caress, David; Paduan, Jennifer; LeSaout, Morgane
Description: These GeoTIFF rasters have the color ramps used in Figure 2 of LeSaout et al. (2020), plus a color ramp that spans the analyzed area. The images are all slope-shaded, hence "slope" in the file names. The depth range, in meters, of the Haxby color ramp used in each of the images is the final part of the filename. These GeoTIFF images were made from a grid of 1-m lateral resolution processed swath bathymetry compiled from MBARI Mapping AUV data acquired on the north rift zone of Axial Seamount with a Reson SeaBat 7125 multibeam sonar system in the summer of 2016 during R/V Rachel Carson cruise RCSN392. The data files are in GeoTIFF grid image format and were generated with several color ramps as indicated by the depth ranges in the file names. The files are in WGS-1984 geographic coordinates, as square cells for use with GIS. Navigation is DVL/USBL, adjusted with MBSystem in post-processing. The AUV navigation adjustment model is consistent with the shapefile of 2015 lava flow boundaries of DOI 10.1594/IEDA/324417 (which is also used in the Le Saout et al. 2020 paper). The files are a subset of the data collected as part of the 2016 Northern Expedition to Axial Seamount. Funding for the work was provided with a grant to MBARI from the David and Lucile Packard Foundation. DOI: 10.26022/IEDA/329694
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Site 15-1 HyLO raw temperature data collected off Montserrat during 2019 Meteor SEKT cruise M154-2
Author(s): Hornbach, Matthew; Sylvester, Joshua
Description: This was the first sea trial test of a new type of Lister heat flow and thermal gradient probe developed at SMU. The new probe is called a HyLO Probe ( "Hybrid Lister-Outrigger Probe). This temperature data set consists of the raw temperature data collected with the HyLO probe attached to the bottom 2 meters of a 3-meter-long gravity corer that was deployed from R/V Meteor during the 2019 Lesser Antilles SEKT cruise M154-2. Temperature values were measured at drill site 15-1 using the HyLO probe that consisted of 8 thermistors spaced 0.18 m apart. The data file includes temperatures recorded during transit down to the sea bottom, during stops in the water column for calibration testing, as well as during probe insertion and removal from the seafloor. The data file is in Excel spreadsheet format and contains time and temperature for each of the thermistors. The data set was generated as part of the projects called SEKT - Sector collapse kinematics and tsunami implications, and, Field Testing Two New Portable Geothermal Gradient Probe Prototypes. Funding was provided with NSF award OCE19-26729.
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Raw temperature data acquired during the HyLO probe test at Fincastle Lake, Texas, 2019
Author(s): Hornbach, Matthew; Sylvester, Joshua; Hayward, Chris
Description: This data set represents a test of a new type of Lister heat flow and thermal gradient probe developed at SMU. The new probe is called a HyLO Probe ( "Hybrid Lister-Outrigger Probe). The test was performed in 2019 from a dock at Fincastle Lake, Texas, USA. For the test, the 2-meter-long HyLO probe consisted of 4 thermistors spaced 0.25 m apart. The probe was deployed from a dock and achieved full insertion into sediment on the lake floor located approximately 1 m below the dock. This data set consists of the raw temperature data collected during that test. The data show a change in temperature during probe insertion time and the thermistors approaching steady state values over an approximately 30 minute period. These data were used to measure the thermal response time of the thermistors and to calibrate the probe response. Since the data are collected in a shallow lake in winter, the high thermal gradients are an indicator of seasonal changes - it is warmer deeper due to the time it takes for the cold temperatures in the lake water to propagate down 2 meters into the lake bed sediment. The data set was generated as part of the projects called SEKT - Sector collapse kinematics and tsunami implications, and, Field Testing Two New Portable Geothermal Gradient Probe Prototypes. Funding was provided with NSF award OCE19-26729.
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MeBo raw temperature data at drill site B23702-3 off Montserrat collected during 2019 Meteor SEKT cruise M154-2
Author(s): Hornbach, Matthew; Sylvester, Joshua; Hayward, Chris; Kuehn, Michel; Huhn-Frehers, Katrin; Freudenthal, Tim; Watt, Sebastian; Berndt, Christian; Kutterolf, Steffen; Kuhlmann, Jannis; Sievers, Carina; Rapp, Sophia; Pallapies, Kilian; Gatter, Ricarda; Hoenekopp, Leonie
Description: This temperature data set was acquired near the Lesser Antilles island of Montserrat during the 2019 Meteor cruise M154-2. Temperature values were measured at drill site B23702-3 down to 9 mbsf using a thermistor located on the MARUM-MeBo70 sonic logging tool. There are sometimes several temperature measurements at a particular depth because of the pauses whilst the pipe was racked as the sonic tool was pulled out of the formation. The data file is in Excel spreadsheet format and contains depth in meters below seafloor and temperature in degrees C. The data set was generated as part of the project called SEKT - Sector collapse kinematics and tsunami implications. Funding was provided with NSF award OCE19-26729.
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AUV magnetic anomaly gridded data from 7m above lake floor (GXF format) over the Deep Hole hydrothermal vent site for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of an interpolated grid of magnetic field anomaly over the Deep Hole hydrothermal site in northern Yellowstone Lake collected by an autonomous underwater vehicle (AUV) in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The grid was generated from data collected approximately 7m above the lake floor complemented with values from the grid of magnetic anomaly at 15m above the lake floor that have been downward continued to 7m height above lake floor. The downward-continued 15m grid values were used in areas outside the 7m survey area. The horizontal grid spacing is 10m. The file is in the Grid eXchange File GXF ASCII grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329677
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AUV data depth and data height grids for the 7m (10m resolution) files (GXF format) over the Deep Hole hydrothermal site, HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of interpolated grids over the Deep Hole hydrothermal site in northern Yellowstone Lake collected in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The two interpolated grids provide the following: (a) the depth (data depth) below the lake surface (mean lake surface elevation value is 2358m above sea-level) and (b) altitude (data height) above the lake floor of the surface on which the 7m-above-lake-floor magnetic anomaly grid was interpolated. The magnetic field anomalies at approximately 7m above the lake floor are interpolated onto a horizontal grid spacing of 10m. The files are in the Grid eXchange File GXF ASCII grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329679
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AUV data depth and data height grids for the 7m (10m resolution) files (netCDF format) over the Deep Hole hydrothermal site, HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of interpolated grids over the Deep Hole hydrothermal site in northern Yellowstone Lake collected in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The two interpolated grids provide the following: (a) the depth (data depth) below the lake surface (mean lake surface elevation value is 2358m above sea-level) and (b) altitude (data height) above the lake floor of the surface on which the 7m-above-lake-floor magnetic anomaly grid was interpolated. The magnetic field anomalies at approximately 7m above the lake floor are interpolated onto a horizontal grid spacing of 10m. The files are in GMT-compatible netCDF grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329678
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AUV magnetic anomaly gridded data from 7m above lake floor (netCDF format) over the Deep Hole hydrothermal vent site for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of an interpolated grid of magnetic field anomaly over the Deep Hole hydrothermal site in northern Yellowstone Lake collected by an autonomous underwater vehicle (AUV) in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The grid was generated from data collected approximately 7m above the lake floor complemented with values from the grid of magnetic anomaly at 15m above the lake floor that have been downward continued to 7m height above lake floor. The downward-continued 15m grid values were used in areas outside the 7m survey area. The horizontal grid spacing is 10m. The file is in GMT-compatible netCDF grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329676
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AUV magnetic anomaly gridded data from 15m above lake floor (netCDF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of an interpolated grid of magnetic field anomaly over hydrothermal sites in northern Yellowstone Lake collected by an autonomous underwater vehicle (AUV) in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The data are collected approximately 15m above the lake floor and interpolated onto a grid with a horizontal spacing of 50m. The file is in GMT-compatible netCDF grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329672
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AUV data depth and data height grids for the 15m (50m resolution) files (GXF format), HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of interpolated grids of (a) the depth (data depth) below the lake surface (mean lake surface elevation value is 2358m above sea-level) and (b) altitude (data height) of the autonomous underwater vehicle (AUV) above the lake floor during the magnetic survey over hydrothermal sites in northern Yellowstone Lake. The AUV survey was conducted in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The data are measured approximately 15m above the lake floor and are interpolated onto a horizontal grid spacing of 50m. The files are in the Grid eXchange File GXF ASCII grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329675
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AUV data depth and data height grids for the 15m (50m resolution) files (netCDF format), HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of interpolated grids of (a) the depth (data depth) below the lake surface (mean lake surface elevation value is 2358m above sea-level) and (b) altitude (data height) of the autonomous underwater vehicle (AUV) above the lake floor during the magnetic survey over hydrothermal sites in northern Yellowstone Lake. The AUV survey was conducted in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The data are measured approximately 15m above the lake floor and are interpolated onto a horizontal grid spacing of 50m. The files are in GMT-compatible netCDF grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329674
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AUV magnetic anomaly gridded data from 15m above lake floor (GXF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of an interpolated grid of magnetic field anomaly over hydrothermal sites in northern Yellowstone Lake collected by an autonomous underwater vehicle (AUV) in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). The data are collected approximately 15m above the lake floor and interpolated onto a grid with a horizontal spacing of 50m. The file is in the Grid eXchange File GXF ASCII grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329673
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Processed AUV magnetic anomaly and corrected vehicle navigation data for the HD-YLAKE project, Yellowstone Lake, 2016
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of processed track line navigation and magnetic field measurements collected by an autonomous underwater vehicle (AUV) in Yellowstone Lake in July 2016 by Ocean Floor Geophysics Inc. (OFG) (https://www.oceanfloorgeophysics.com/). Diurnal corrections to the magnetic data were applied utilizing the Newport (NEW) and Boulder (BOU) geomagnetic observatory records. The regional IGRF magnetic field [Thebault et al., 2015] was removed to produce the anomaly. Navigation was provided by a deployed acoustic transponder network. Data processing of the navigation data included masking of AUV maneuvers and jumps in the data, correction of a residual heading effect and separation of the data acquired at the 15-m height above lake bed from a 7-m height above lake bed. Details of the processing are explained in Bouligand et al., 2020. The data files are in ASCII format with the following columns: longitude, latitude, UTM x (m), UTM y (m), depth(m), height above lake floor (m), magnetic anomaly (nT). The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329671
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AUV raw and vehicle-corrected track line navigation and magnetic field data for the HD-YLAKE project, Yellowstone Lake, 2016
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of raw and vehicle corrected trackline navigation and magnetic field measurements collected by an autonomous underwater vehicle (AUV) in Yellowstone Lake in July 2016. The AUV magnetometer was an APS (Applied Physics Systems model 1540) 3-axis fluxgate sensor (https://www.appliedphysics.com/products/magnetometers/) as part of a Self-Compensating Magnetometer (SCM) System supplied by Ocean Floor Geophysics Inc. (OFG: https://www.oceanfloorgeophysics.com). The WHOI REMUS group operated the REMUS 600 AUV. Navigation was provided by a deployed acoustic transponder network. The data files are in ASCII format with the following columns: unix time in seconds, year, month, day, hour, min, sec, longitude, latitude, heading (degrees), depth (meters), altitude (meters), pitch (degrees), roll (degrees), mag1 (nT), mag2 (nT), mag3 (nT), total magnetic field intensity (nT), thrust (amps), fiducial, mag1_corrected (nT), mag2_corrected (nT), mag3_corrected (nT), corrected total magnetic field intensity (nT), uncorrected total magnetic field intensity (nT), total field correction (nT). The file names are formatted with the AUV dive name as the first part of the file name followed by the name of the dive used for the magnetic calibration. In this survey, the magnetic calibration factors for all of the files are based on data from dive YL16A06. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361. DOI: 10.26022/IEDA/329670
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Lake surface magnetic anomaly data (netCDF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of a merged grid of magnetic field anomaly over northern Yellowstone Lake and adjacent area from three surveys draped over topography and the lake surface with a grid spacing of 25 m. To compute this grid the measured data values were reduced to the level of the lake surface (2358 m) and topography surrounding the lake. The file is in GMT-compatible netCDF grid format. The combined data sets consist of a 2016 lake level magnetic survey, a 2016 a low-altitude aeromagnetic survey collected by USGS [Finn et al., 2020] and a regional higher altitude aeromagnetic survey collected by USGS in 1997 [U.S. Geological Survey, 2000; Finn and Morgan, 2002]. Details of the grid merging and analysis procedures are explained in Bouligand et al., 2020.The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018 and the 2016 aeromagnetic data was collected under research permit YELL-2016-SCI-7056.Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. DOI: 10.26022/IEDA/329666
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Lake surface magnetic observation level grid (GXF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of a digital elevation grid (topography and lake level) of the merged magnetic observation level over northern Yellowstone Lake and adjacent area in meters above sea level with a grid spacing of 25m. The file is in the Grid eXchange File GXF ASCII grid format and represents the observation level of the related lake surface magnetic anomaly grid including the lake level and surrounding terrain. Details of the grid analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018 and the 2016 aeromagnetic data was collected under research permit YELL-2016-SCI-7056. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. DOI: 10.26022/IEDA/329669
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Lake surface magnetic observation level grid (netCDF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of a digital elevation grid (topography and lake level) of the merged magnetic observation level over northern Yellowstone Lake and adjacent area in meters above sea level with a grid spacing of 25m. The grid is in GMT-compatible netCDF grid format and represents the observation level of the related lake surface magnetic anomaly grid including the lake level and surrounding terrain. Details of the grid analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018 and the 2016 aeromagnetic data was collected under research permit YELL-2016-SCI-7056. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. DOI: 10.26022/IEDA/329668
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Lake surface magnetic anomaly data (GXF format) for the HD-YLAKE project, Yellowstone Lake
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of a merged grid of magnetic field anomaly over northern Yellowstone Lake and adjacent area from three surveys draped over topography and the lake surface with a grid spacing of 25 m. To compute this grid the measured data values were reduced to the level of the lake surface (2358 m) and topography surrounding the lake. The file is in the Grid eXchange File GXF ASCII grid format. The combined data sets consist of a 2016 lake level magnetic survey, a 2016 a low-altitude aeromagnetic survey collected by USGS [Finn et al., 2020] and a regional higher altitude aeromagnetic survey collected by USGS in 1997 [U.S. Geological Survey, 2000; Finn and Morgan, 2002]. Details of the grid merging and analysis procedures are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018 and the 2016 aeromagnetic data was collected under research permit YELL-2016-SCI-7056. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. DOI: 10.26022/IEDA/329667
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2020-06-01

Lake surface track line navigation and magnetic anomaly data for the HD-YLAKE project, Yellowstone Lake, 2016
Author(s): Bouligand, Claire; Tivey, Maurice; Finn, Carol; Morgan, Lisa; Shanks, Pat; Sohn, Robert
Description: This data set consists of track line navigation and magnetic field measurements collected on Yellowstone Lake in September 2016. The magnetic sensor was an Overhauser scalar magnetometer (Marine Magnetics Explorer sensor) towed at ~15 m behind the USGS boat Alamar with navigation recorded using a GlobalSat USB GPS receiver with a precision of a few meters. The magnetic data was collected at the lake level, at a mean elevation value of 2358 meters above sea level. The data files are in ASCII format with the following columns: longitude, latitude, x (m), y(m), date(YYYY/MM/DD), utc_time(HH:MM:SS), raw magnetic field intensity (nT), magnetic anomaly (nT). The magnetic anomaly was computed after correcting for diurnal variations and removing the regional IGRF [Thebault et al., 2015]. Diurnal corrections were applied utilizing the Newport (NEW) and Boulder (BOU) geomagnetic observatory records. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361, U.S Geological Survey Mineral Resource and Volcano Hazard Programs, and benefited from major in-kind support from the U.S. Geological Survey Yellowstone Volcano Observatory. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI. During the course of this study, C. Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. DOI: 10.26022/IEDA/329664
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Processed gridded multibeam bathymetry data from the Alaska-Aleutians area acquired during Sikuliaq cruise SKQ201811S (2018)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Myers, Emma; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Webb, Spahr; Wiens, Douglas; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM302 multibeam sonar data acquired during the 2018 R/V Sikuliaq cruise SKQ201811S (Co-Chief Scientists: Spahr Webb and Lindsay Worthington. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS Qimera using XBT sound velocity profiles collected locally and gridded at 100m cell resolution for the entire survey. The data files are in GMT-compatible netCDF grid format and contain bathymetry data that has been processed with the help of the Apply-to-Sail participants: Collin Brandl, Enrique Chon, David Heath, Robert Martin-Short, Kelly Olsen, and Holly Rotman. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329660
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Processed gridded multibeam bathymetry data from the Alaska-Aleutians area acquired during Sikuliaq cruise SKQ201816S (2018)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Myers, Emma; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Webb, Spahr; Wiens, Douglas; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM302 multibeam sonar data acquired during the 2018 R/V Sikuliaq cruise SKQ201816S (Co-Chief Scientists: Anne Sheehan and Doug Wiens. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS Qimera using XBT sound velocity profiles collected locally and gridded at 100m cell resolution for the entire survey. The data files are in GMT-compatible netCDF grid format and contain bathymetry data that has been processed with the help of the Apply-to-Sail participants: Samantha Hansen, Natalia Ruppert, Tiegan Hobbs, Amanda Price, Jefferson Yarce, Heather Shaddox, Bethany Essary, and Shannon Hendricks. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329662
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Processed acoustic backscatter data from the Alaska-Aleutians area acquired during Sikuliaq cruise SKQ201811S (2018)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Myers, Emma; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Webb, Spahr; Wiens, Douglas; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM302 multibeam sonar data acquired during the 2018 R/V Sikuliaq cruise SKQ201811S (Co-Chief Scientists: Spahr Webb and Lindsay Worthington. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS FMGT (Geocoder Toolbox) and gridded at 100m cell resolution for the entire survey. The data files are in GeoTIFF grid format and contain acoustic backscatter intensity values ranging from 0 (black) – 255 (white). The data has been processed with the help of the Apply-to-Sail participants: Collin Brandl, Enrique Chon, David Heath, Robert Martin-Short, Kelly Olsen, and Holly Rotman. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329661
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Processed acoustic backscatter data from the Alaska-Aleutians area acquired during Sikuliaq cruise SKQ201816S (2018)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Myers, Emma; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Webb, Spahr; Wiens, Douglas; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM302 multibeam sonar data acquired during the 2018 R/V Sikuliaq cruise SKQ201816S (Co-Chief Scientists: Anne Sheehan and Doug Wiens. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS FMGT (Geocoder Toolbox) and gridded at 100m cell resolution for the entire survey. The data files are in GeoTIFF grid format and contain acoustic backscatter intensity values ranging from 0 (black) – 255 (white). The data has been processed with the help of the Apply-to-Sail participants: Samantha Hansen, Natalia Ruppert, Tiegan Hobbs, Amanda Price, Jefferson Yarce, Heather Shaddox, Bethany Essary, and Shannon Hendricks. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329663
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Processed gridded multibeam bathymetry data from the Alaska-Aleutians area acquired during Langseth cruise MGL1907 (2019)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Wiens, Douglas; Webb, Spahr; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM122 multibeam sonar data acquired during the 2019 R/V Marcus G. Langseth cruise MGL1907 (Co-Chief Scientists: Geoff Abers and Peter Haeussler. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS Qimera using XBT sound velocity profiles collected locally and gridded at 125m cell resolution for the entire survey. The data files are in GMT-compatible netCDF grid format and contain bathymetry data that has been processed with the help of the Apply-to-Sail participants: Igor Eufrasio, Heather Fisher, Cong Li, Ginevra Moore, Em Schnorr, and Zhenyang Zhou. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329658
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Processed acoustic backscatter data from the Alaska-Aleutians area acquired during Langseth cruise MGL1907 (2019)
Author(s): Danforth, William; Becel, Anne; Sheehan, Anne; Haeussler, Peter; Abers, Geoffrey; Adams, Aubreya; Roland, Emily; Schwartz, Susan; Shillington, Donna; Wiens, Douglas; Webb, Spahr; Worthington, Lindsay
Description: This data set was derived from Kongsberg EM122 multibeam sonar data acquired during the 2019 R/V Marcus G. Langseth cruise MGL1907 (Co-Chief Scientists: Geoff Abers and Peter Haeussler. Investigators: Anne Becel, Anne Sheehan, William Danforth, Emma Myers, Peter Haeussler, Geoff Abers, Aubreya Adams, Emily Roland, Susan Schwartz, Donna Shillington, Spahr Webb, Douglas Wiens, Lindsay Worthington). The data files were processed in QPS FMGT (Geocoder Toolbox) and gridded at 125m cell resolution for the entire survey. The data files are in GeoTIFF grid format and contain acoustic backscatter intensity values ranging from 0 (black) – 255 (white). The data has been processed with the help of the Apply-to-Sail participants: Igor Eufrasio, Heather Fisher, Cong Li, Ginevra Moore, Em Schnorr, Zhenyang Zhou. The data set was generated as part of the project called the Alaska Amphibious Community Seismic Experiment (AACSE). Funding was provided by NSF award OCE16-54568. DOI: 10.26022/IEDA/329659
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2020-05-01

Sidescan data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores. DOI: 10.1594/IEDA/500247
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Image of the three-dimensional P-wave velocity structure of the Nankai trough region, SW Japan (investigators: Adrien F. Arnulf, Dan Bassett, Alistair Harding)
Author(s): Arnulf, Adrien; Bassett, Daniel; Harding, Alistair
Description: This image of the three-dimensional (3-D) P-wave velocity structure of the Nankai trough region, in Southwest Japan, is derived from joint travel-time tomographic inversion of active source seismic data and regional earthquake seismicity (JMA catalogue). The image is in PNG format. The local grid is 800 km long, 500 km wide and is centered on 33.535°N and 134.675°E and rotated -20°N. The associated Matlab script can be used to plot the data set. The data file was generated as part of a project called 3-D Onshore-Offshore Seismic Investigation of Japan's Megathrusts. Funding was provided by NSF grants OCE 1657480 (UTIG) and OCE 1658010 (SIO). DOI: 10.26022/IEDA/329656
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Three-dimensional P-wave velocity structure of the Nankai trough region, SW Japan (investigators: Adrien F. Arnulf, Dan Bassett, Alistair Harding)
Author(s): Arnulf, Adrien; Bassett, Daniel; Harding, Alistair
Description: This three-dimensional (3-D) P-wave velocity structure of the Nankai trough region, in Southwest Japan, is derived from joint travel-time tomographic inversion of active source seismic data and regional earthquake seismicity (JMA catalogue). The data file is in ASCII format and contains 4 columns (x-local-coordinate, y-local-coordinate, z-local-coordinate, P-wave velocity). The local grid is 800 km long, 500 km wide and is centered on 33.535°N and 134.675°E and rotated -20°N. The included Matlab script can be used to plot the data set. The data files were generated as part of a project called 3-D Onshore-Offshore Seismic Investigation of Japan's Megathrusts. Funding was provided by NSF grants OCE 1657480 (UTIG) and OCE 1658010 (SIO). DOI: 10.26022/IEDA/329655
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Gridded bathymetric data around Pico, Faial, and Sao Jorge islands, Azores (2003 survey)
Author(s): Mitchell, Neil; Tempera, Fernando
Description: This processed bathymetric grid was generated from multibeam sonar data collected with a Reson SeaBat 8160 echo-sounder system in 2003 on R/V Arquipelago (investigators Neil Mitchell and Fernando Tempera). The echo-sounder was attached to a temporary mount under the bow of the vessel. The processed bathymetry data is gridded at 100m resolution and the data file is in GMT-compatible netCDF grid format. The data exhibited some cross-track corrugations due to a non-rigid mounting of the transducers but this effect is reduced at the 100m grid spacing. DOI: 10.26022/IEDA/329653
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Processed multi-channel seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573.
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Processed multi-channel seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573. DOI: 10.1594/IEDA/500210
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Sonobuoy seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573.
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Sonobuoy seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573.
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Sonobuoy seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573. DOI: 10.1594/IEDA/500233
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Multi-channel seismic field data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): SIO, SGG
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573.
View Data >

Multi-channel seismic field data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): SIO, SGG
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573. DOI: 10.1594/IEDA/500209
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison. DOI: 10.1594/IEDA/500031
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
View Data >

Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
View Data >

Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by JEBCO in 1988
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (JEBCO). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison. DOI: 10.1594/IEDA/500031
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by Chevron in 1979
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (Chevron). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
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Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by Chevron in 1979
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (Chevron). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison.
View Data >

Processed legacy industry multichannel seismic data located near the San Onofre Nuclear Generating Station, offshore California, acquired by Chevron in 1979
Author(s): Kent, Graham; Driscoll, Neal
Description: A collaborative effort between Scripps Institution of Oceanography and the University of Nevada, Reno, this project includes the pre stack imaging of legacy industry data (Chevron). Southern California Edison provided support for the reprocessing efforts and agreed to make the data publicly available. The primary purpose is to study the seismic setting near the San Onofre Nuclear Generating Station (SONGS). Funding was from Southern California Edison. DOI: 10.1594/IEDA/500030
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Processed multi-channel seismic data at the Sumatran Trench, acquired by the R/V Sonne in 2008 as part of the Collaborative Research Understanding Sumatran Tectonics (CRUST) project
Author(s): Gulick, Sean
Description: This 2008 R/V Sonne expedition to the area of the December 2004 Sumatran earthquake was an collaborative effort between UK, Indonesian, and U.S. scientists. The purpose was to test the hypothesis that landward-vergent (as opposed to seaward-vergent) thrusting promotes rupture to the deformation front, and consequent possibility for tsunamigenic earthquakes. Funded by NSF Grant OCE-0623165, Badan Pengkajian dan Penerapan Teknologi, Natural Environment Research Council, UK, and Lembaga Ilmu Pengetahuan Indonesia. DOI: 10.1594/IEDA/500232
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Multi-channel field seismic data at the Sumatran Trench, acquired by the R/V Sonne in 2008 as part of the Collaborative Research Understanding Sumatran Tectonics (CRUST) project
Author(s): Gulick, Sean
Description: This 2008 R/V Sonne expedition to the area of the December 2004 Sumatran earthquake was an collaborative effort between UK, Indonesian, and U.S. scientists.The purpose was to test the hypothesis that landward-vergent (as opposed to seaward-vergent) thrusting promotes rupture to the deformation front, and consequent possibility for tsunamigenic earthquakes. Funded by NSF Grant OCE-0623165, Badan Pengkajian dan Penerapan Teknologi, Natural Environment Research Council, UK, and Lembaga Ilmu Pengetahuan Indonesia. DOI: 10.1594/IEDA/500231
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Processed single channel seismic data at the Sumatran Trench, acquired by the M/V The Performer in 2005 as part of the Sumatra Earthquake and Tsunami Offshore Survey (SEATOS)
Author(s): Mosher, David
Description: This 2005 cruise on board the MV The Performer collected SCS data as part of a mult-disciplinary effort (Sumatra Earthquake and Tsunami Offshore Survey) to obtain a a detailed survey of the seafloor in the vicinity of the epicenter of the Great Sumatra earthquake of December 26, 2004. The purpose was to collect data to improve models of seafloor displacement and the resulting tsunami wave.
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Processed single channel seismic data at the Sumatran Trench, acquired by the M/V The Performer in 2005 as part of the Sumatra Earthquake and Tsunami Offshore Survey (SEATOS)
Author(s): Mosher, David
Description: This 2005 cruise on board the MV The Performer collected SCS data as part of a mult-disciplinary effort (Sumatra Earthquake and Tsunami Offshore Survey) to obtain a a detailed survey of the seafloor in the vicinity of the epicenter of the Great Sumatra earthquake of December 26, 2004. The purpose was to collect data to improve models of seafloor displacement and the resulting tsunami wave.
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Processed single channel seismic data at the Sumatran Trench, acquired by the M/V The Performer in 2005 as part of the Sumatra Earthquake and Tsunami Offshore Survey (SEATOS)
Author(s): Mosher, David
Description: This 2005 cruise on board the MV The Performer collected SCS data as part of a mult-disciplinary effort (Sumatra Earthquake and Tsunami Offshore Survey) to obtain a a detailed survey of the seafloor in the vicinity of the epicenter of the Great Sumatra earthquake of December 26, 2004. The purpose was to collect data to improve models of seafloor displacement and the resulting tsunami wave. DOI: 10.1594/IEDA/500237
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Ocean bottom seismometer (OBS) data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
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Ocean bottom seismometer (OBS) data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
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Ocean bottom seismometer (OBS) data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446. DOI: 10.1594/IEDA/500156
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Processed multichannel seismic data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
View Data >

Processed multichannel seismic data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
View Data >

Processed multichannel seismic data in the Salton Trough, acquired in 2011 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2011 survey of the Salton Trough collected 48-channel MCS and OBS data with a deep acquisition system tailored to enhance penetration. A 17 m motor vessel towed a 30 m barge from which the instruments were deployed. SALTON2010 was a companion survey in 2010. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446. DOI: 10.1594/IEDA/500155
View Data >

Processed multichannel seismic data in the Salton Trough, acquired in 2010 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2010 survey of the Salton Trough collected 24-channel MCS data with an acquisition system tailored to enhance vertical resolution. SALTON2011 was a companion survey in 2011. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
View Data >

Processed multichannel seismic data in the Salton Trough, acquired in 2010 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2010 survey of the Salton Trough collected 24-channel MCS data with an acquisition system tailored to enhance vertical resolution. SALTON2011 was a companion survey in 2011. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446.
View Data >

Processed multichannel seismic data in the Salton Trough, acquired in 2010 as part of the Salton Seismic Imaging Project (SSIP)
Author(s): Kell, Annie; Kent, Graham
Description: Part of the Salton Seismic Imaging Project (SSIP), this 2010 survey of the Salton Trough collected 24-channel MCS data with an acquisition system tailored to enhance vertical resolution. SALTON2011 was a companion survey in 2011. The objectives were to image the structure beneath the trough and to improve the understanding of the San Andreas Fault system and earthquake hazard in the region. Funded by NSF grant OCE 0927446. DOI: 10.1594/IEDA/500154
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Processed multichannel seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183.
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Processed multichannel seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183.
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Processed multichannel seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183. DOI: 10.1594/IEDA/500238
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Sonobuoy seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183.
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Sonobuoy seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183.
View Data >

Sonobuoy seismic data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183. DOI: 10.1594/IEDA/500239
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Multichannel seismic field data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183.
View Data >

Multichannel seismic field data on Kerguelen Plateau, Indian Ocean, acquired by the R/V Rig Seismic in 1997 (RS180)
Author(s): Coffin, Millard
Description: This 1997 R/V Rig Seismic expedition collected bathymetric, gravity,and magnetic data along with ~1500km of MCS data across Kerguelen Plateau in the Indian Ocean. Supporting AGSO's Law of the Sea project, this cruise served also as a site survey for ODP Leg 183. DOI: 10.1594/IEDA/500240
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Multi-channel seismic processed data offshore Oregon, acquired by the R/V Roger Revelle in 2017 (RR1718)
Author(s): Phrampus, Benjamin
Description: Exploring the coast of Oregon, this 2017 R/V Roger Revelle expedition served as a training cruise for early career scientists.The purpose was to increase the number of early career scientists experienced in marine seismology and to demonstrate the value of the Scripps Institution of Oceanography portable MCS system, a UNOLS facility. The seismic reflection profiles collected during this cruise can be used to image the subducting plate and the Astoria Fan, as well as accretionary ridges hosting gas hydrate and pockets of hemipelagic sediment containing paleo-oceanographic information. Funded by NSF grants 1714168 and 1714413.
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Multi-channel seismic processed data offshore Oregon, acquired by the R/V Roger Revelle in 2017 (RR1718)
Author(s): Phrampus, Benjamin
Description: Exploring the coast of Oregon, this 2017 R/V Roger Revelle expedition served as a training cruise for early career scientists.The purpose was to increase the number of early career scientists experienced in marine seismology and to demonstrate the value of the Scripps Institution of Oceanography portable MCS system, a UNOLS facility. The seismic reflection profiles collected during this cruise can be used to image the subducting plate and the Astoria Fan, as well as accretionary ridges hosting gas hydrate and pockets of hemipelagic sediment containing paleo-oceanographic information. Funded by NSF grants 1714168 and 1714413.
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Multi-channel seismic processed data offshore Oregon, acquired by the R/V Roger Revelle in 2017 (RR1718)
Author(s): Phrampus, Benjamin
Description: Exploring the coast of Oregon, this 2017 R/V Roger Revelle expedition served as a training cruise for early career scientists.The purpose was to increase the number of early career scientists experienced in marine seismology and to demonstrate the value of the Scripps Institution of Oceanography portable MCS system, a UNOLS facility. The seismic reflection profiles collected during this cruise can be used to image the subducting plate and the Astoria Fan, as well as accretionary ridges hosting gas hydrate and pockets of hemipelagic sediment containing paleo-oceanographic information. Funded by NSF grants 1714168 and 1714413. DOI: 10.1594/IEDA/500194
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Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2411, obtained data on the Norwegian side. Funding was from NSF Grant OPP-8216014.
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Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2411, obtained data on the Norwegian side. Funding was from NSF Grant OPP-8216014.
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Processed multichannel seismic data off the eastern Greenland margin acquired during the Robert D. Conrad expedition RC2412 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2411, obtained data on the Norwegian side. Funding was from NSF Grant OPP-8216014. DOI: 10.1594/IEDA/500036
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Processed multichannel seismic data off the western Norwegian margin acquired during the Robert D. Conrad expedition RC2411 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2412, obtained data on the Greenland side. Funding was from NSF Grant OPP-8216014.
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Processed multichannel seismic data off the western Norwegian margin acquired during the Robert D. Conrad expedition RC2411 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2412, obtained data on the Greenland side. Funding was from NSF Grant OPP-8216014.
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Processed multichannel seismic data off the western Norwegian margin acquired during the Robert D. Conrad expedition RC2411 (1983)
Author(s): Alsop, Joyce
Description: A collaborative effort between LDEO and BGR, this was a two-ship survey. R/V Conrad and S/V Prospekta collected COP and ESP data on the Norwegian margin. S/V Prospekta was the lead ship during COPs for all lines. The primary objective was to obtain data on both sides of the conjugate margins with which to study the dipping reflectors and structures. A companion cruise, RC2412, obtained data on the Greenland side. Funding was from NSF Grant OPP-8216014. DOI: 10.1594/IEDA/500035
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Ocean bottom seismometer (OBS) data around Taiwan, deployed by the R/V Ocean Researcher I survey ORI429 for acquisition during R/V Maurice Ewing EW9509 (1995)
Author(s): Nakamura, Yosio
Description: The R/V Ocean Researcher Cruise 429 was part of a cooperative project with the National Taiwan Ocean University. In total 39 OBSs were deployed along six seismic lines. The R/V Ocean Researcher I deployed and recovered the 39 OBSs; the seismic source for the six deep refraction lines was provided by the R/V Ewing (EW9509). The purpose was to study the deep seismic structure in and around Taiwan. Funded by NSF grant OCE94-17411.
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Ocean bottom seismometer (OBS) data around Taiwan, deployed by the R/V Ocean Researcher I survey ORI429 for acquisition during R/V Maurice Ewing EW9509 (1995)
Author(s): Nakamura, Yosio
Description: The R/V Ocean Researcher Cruise 429 was part of a cooperative project with the National Taiwan Ocean University. In total 39 OBSs were deployed along six seismic lines. The R/V Ocean Researcher I deployed and recovered the 39 OBSs; the seismic source for the six deep refraction lines was provided by the R/V Ewing (EW9509). The purpose was to study the deep seismic structure in and around Taiwan. Funded by NSF grant OCE94-17411.
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Ocean bottom seismometer (OBS) data around Taiwan, deployed by the R/V Ocean Researcher I survey ORI429 for acquisition during R/V Maurice Ewing EW9509 (1995)
Author(s): Nakamura, Yosio
Description: The R/V Ocean Researcher Cruise 429 was part of a cooperative project with the National Taiwan Ocean University. In total 39 OBSs were deployed along six seismic lines. The R/V Ocean Researcher I deployed and recovered the 39 OBSs; the seismic source for the six deep refraction lines was provided by the R/V Ewing (EW9509). The purpose was to study the deep seismic structure in and around Taiwan. Funded by NSF grant OCE94-17411. DOI: 10.1594/IEDA/500149
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI347 (1993)
Author(s): Nakamura, Yosio
Description: This 1993 cruise aboard the R/V Ocean Researcher I deployed ocean bottom seismometers southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University.
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI347 (1993)
Author(s): Nakamura, Yosio
Description: This 1993 cruise aboard the R/V Ocean Researcher I deployed ocean bottom seismometers southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University.
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI347 (1993)
Author(s): Nakamura, Yosio
Description: This 1993 cruise aboard the R/V Ocean Researcher I deployed ocean bottom seismometers southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University. DOI: 10.1594/IEDA/500150
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI312 (1992)
Author(s): Nakamura, Yosio
Description: This 1992 cruise aboard the R/V Ocean Researcher I was southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University.
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI312 (1992)
Author(s): Nakamura, Yosio
Description: This 1992 cruise aboard the R/V Ocean Researcher I was southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University.
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Ocean bottom seismometer (OBS) data southwest of Taiwan, deployed by the R/V Ocean Researcher I survey ORI312 (1992)
Author(s): Nakamura, Yosio
Description: This 1992 cruise aboard the R/V Ocean Researcher I was southwest of Taiwan near the Manilla Trench. The goal was to study the crustal structure and observe microearthquakes in the region. Funded by the National Taiwan Ocean University. DOI: 10.1594/IEDA/500152
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Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Austin, James
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.).
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Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Austin, James
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.).
View Data >

Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Austin, James
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.). DOI: 10.1594/IEDA/500136
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Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Alsop, Joyce
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.).
View Data >

Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Alsop, Joyce
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.).
View Data >

Processed multichannel seismic data off the New Jersey coast, acquired during the R/V Oceanus survey OC270 (1995)
Author(s): Alsop, Joyce
Description: This R/V Oceanus cruise conducted a high-resolution seismic survey of Neogene-Recent sequence stratigraphy off the New Jersey coast. This study was in support of STRATAFORM and the Ocean Drilling Program's Mid-Atlantic Transit project. The objectives were to collect high-resolution reflection images of the upper 100+ m of strata geometry from the outer shelf to the slope, tied to Leg 150 sites, and to survey for the presence of shallow gas in grids centered on proposed ODP drill sites, following guidelines set by the Shallow Water Drilling Hazards Working Group. Funded by the Office of Naval Research (U.S.). DOI: 10.1594/IEDA/500136
View Data >

Processed multi-channel seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

Processed multi-channel seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

Processed multi-channel seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores. DOI: 10.1594/IEDA/500246
View Data >

3.5 kHz processed seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

3.5 kHz processed seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

3.5 kHz processed seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores. DOI: 10.1594/IEDA/500244
View Data >

Multi-channel seismic field data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

Multi-channel seismic field data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores. DOI: 10.1594/IEDA/500245
View Data >

3.5 kHz field seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores.
View Data >

3.5 kHz field seismic data collected by a ferry boat, the Mozorola, and a barge, the Morrito #2, in Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006)
Author(s): McIntosh, Kirk; Mann, Paul
Description: Principal investigators chartered a ferry boat, the Mozorola, and a barge, the Morrito #2, to conduct this survey of Lake Nicaragua (May 6-24, 2006) and Lake Managua (May 26-31, 2006) (respectively). The objectives were to test deformation models related to oblique subduction and to investigate the longer term geologic history of the Nicaragua depression. The research team collected high-resolution seismic data, 3.5 kHz subbottom profiles, sidescan data, and cores. DOI: 10.1594/IEDA/500243
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace Technologies. Funding was from Southern California Edison.
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace Technologies. Funding was from Southern California Edison.
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace Technologies. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500048
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace Technologies. Funding was from Southern California Edison.
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace Technologies. Funding was from Southern California Edison.
View Data >

Processed 3D volume of multi-channel seismic data offshore California acquired during the R/V New Horizon expedition NH1323 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 3D shallow seismic survey, collecting both sparker (http://dx.doi.org/10.1594/IEDA/500047) and boomer (http://dx.doi.org/10.1594/IEDA/500048) data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace Technologies. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500047
View Data >

Velocity files used for processing multi-channel seismic data (boomer source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source: boomer). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Velocity files used for processing multi-channel seismic data (boomer source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source: boomer). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Velocity files used for processing multi-channel seismic data (boomer source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source: boomer). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500045
View Data >

Processed multi-channel seismic data (stacks) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500044
View Data >

Processed multi-channel seismic data (migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a boomer source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These boomer data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500046
View Data >

Velocity files used for processing multi-channel seismic data (sparker source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source sparker). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Velocity files used for processing multi-channel seismic data (sparker source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source sparker). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Velocity files used for processing multi-channel seismic data (sparker source) offshore California, acquired during R/V New Horizon expedition NH1320 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data (source sparker). UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500042
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. No navigation in the original headers. CDP navigation (UTM zone 11, WGS 84 coordinates) provided by the PI was converted to latitude/longitude in arc seconds and placed in the headers at bytes 73-76, 77-80. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500041
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison.
View Data >

Processed multi-channel seismic data (stacks and migrations) offshore California acquired during the R/V New Horizon expedition NH1320 (2013) using a sparker source
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V New Horizon expedition conducted a 2D shallow seismic survey, collecting both sparker and boomer data, in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included imaging the fault geometry in the seismogenic zone and determining the recurrence interval for the fault systems. These sparker data were processed by Geotrace. UTM navigation is in the headers of the original SEG-Y files. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500043
View Data >

Multi-channel seismic field data in the Scotia Sea and Bransfield Basin, acquired by the R/V Nathaniel B. Palmer in 1995 (NBP9507)
Author(s): Lawver, Lawrence
Description: This 1995 R/V Nathaniel B. Palmer survey investigated portions of the southwest Scotia Sea and Bransfield basin, collecting 48-channel seismic reflection data, cores and dredges. The goals included collecting data to map the structural character and tectonic fabric of the evolving plate boundary in Southwest Scotia Sea, Shackleton Fracture Zone, and Bransfield Strait and to generate detailed structural maps of the seafloor of these regions. Funded by NSF grants OPP-9317588 and OPP-9731695.
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Multi-channel seismic field data in the Scotia Sea and Bransfield Basin, acquired by the R/V Nathaniel B. Palmer in 1995 (NBP9507)
Author(s): Lawver, Lawrence
Description: This 1995 R/V Nathaniel B. Palmer survey investigated portions of the southwest Scotia Sea and Bransfield basin, collecting 48-channel seismic reflection data, cores and dredges. The goals included collecting data to map the structural character and tectonic fabric of the evolving plate boundary in Southwest Scotia Sea, Shackleton Fracture Zone, and Bransfield Strait and to generate detailed structural maps of the seafloor of these regions. Funded by NSF grants OPP-9317588 and OPP-9731695.
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Multi-channel seismic field data in the Scotia Sea and Bransfield Basin, acquired by the R/V Nathaniel B. Palmer in 1995 (NBP9507)
Author(s): Lawver, Lawrence
Description: This 1995 R/V Nathaniel B. Palmer survey investigated portions of the southwest Scotia Sea and Bransfield basin, collecting 48-channel seismic reflection data, cores and dredges. The goals included collecting data to map the structural character and tectonic fabric of the evolving plate boundary in Southwest Scotia Sea, Shackleton Fracture Zone, and Bransfield Strait and to generate detailed structural maps of the seafloor of these regions. Funded by NSF grants OPP-9317588 and OPP-9731695. DOI: 10.1594/IEDA/500193
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Single channel seismic data in Powell Basin, Antarctic Peninsula, acquired by the R/V Nathaniel B. Palmer in 1993 (NBP9301)
Author(s): Lawver, Lawrence
Description: This 1993 R/V Nathaniel B. Palmer cruise collected SCS data in Bransfield Strait, Powell Basin and on the Larsen Ice Shelf. The goal was to obtain data that could be used to study the age and mode of crustal extension of the Powell Basin. Funded by NSF grant OPP-9019247.
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Single channel seismic data in Powell Basin, Antarctic Peninsula, acquired by the R/V Nathaniel B. Palmer in 1993 (NBP9301)
Author(s): Lawver, Lawrence
Description: This 1993 R/V Nathaniel B. Palmer cruise collected SCS data in Bransfield Strait, Powell Basin and on the Larsen Ice Shelf. The goal was to obtain data that could be used to study the age and mode of crustal extension of the Powell Basin. Funded by NSF grant OPP-9019247.
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Single channel seismic data in Powell Basin, Antarctic Peninsula, acquired by the R/V Nathaniel B. Palmer in 1993 (NBP9301)
Author(s): Lawver, Lawrence
Description: This 1993 R/V Nathaniel B. Palmer cruise collected SCS data in Bransfield Strait, Powell Basin and on the Larsen Ice Shelf. The goal was to obtain data that could be used to study the age and mode of crustal extension of the Powell Basin. Funded by NSF grant OPP-9019247. DOI: 10.1594/IEDA/500190
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Single-channel seismic field data on the north Panama thrust belt, acquired by the R/V Moana Wave (MW8508) in 1985
Author(s): Silver, Eli
Description: This 1985 R/V Moana Wave SeaMarc II cruise surveyed the north Panama thrust belt, collecting high-resolution SeaMARC II side-scan sonar and bathymetric data and single-channel seismic data. MW8507 (PANMARC I) was a companion cruise. The objectives included obtaining high-resolution imaging data of the north Panama thrust belt to study the oroclinal deformation of Panama. Funded by NSF grants OCE=8415714, OCE-8417928, OCE-8418384, and OCE-8503855.
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Single-channel seismic field data on the north Panama thrust belt, acquired by the R/V Moana Wave (MW8508) in 1985
Author(s): Silver, Eli
Description: This 1985 R/V Moana Wave SeaMarc II cruise surveyed the north Panama thrust belt, collecting high-resolution SeaMARC II side-scan sonar and bathymetric data and single-channel seismic data. MW8507 (PANMARC I) was a companion cruise. The objectives included obtaining high-resolution imaging data of the north Panama thrust belt to study the oroclinal deformation of Panama. Funded by NSF grants OCE=8415714, OCE-8417928, OCE-8418384, and OCE-8503855. DOI: 10.1594/IEDA/500234
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Single-channel seismic field data on the north Panama thrust belt, acquired by the R/V Moana Wave (MW8508) in 1985
Author(s): Silver, Eli
Description: This 1985 R/V Moana Wave SeaMarc II cruise surveyed the north Panama thrust belt, collecting high-resolution SeaMARC II side-scan sonar and bathymetric data and single-channel seismic data. MW8507 (PANMARC I) was a companion cruise. The objectives included obtaining high-resolution imaging data of the north Panama thrust belt to study the oroclinal deformation of Panama. Funded by NSF grants OCE=8415714, OCE-8417928, OCE-8418384, and OCE-8503855.
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Ocean bottom seismometer data off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), this 2014 R/V Endeavor survey collected OBS data off North Carolina and Virginia while the R/V Langseth (MGL1408) collected MCS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards.
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Ocean bottom seismometer data off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), this 2014 R/V Endeavor survey collected OBS data off North Carolina and Virginia while the R/V Langseth (MGL1408) collected MCS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. DOI: 10.1594/IEDA/500014
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CHIRP Data from Weeks Bay, Alabama, acquired during R/V Jenny survey JN0201 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay along the eastern shore of Mobile Bay, Alabama in 2002. The goal was to use the data to study how the Holocene evolution of Weeks Bay was impacted by the interactions between sea level rise and the preceding topography. Funded by NSF (Grant EAR 0107650), by the Office of Ocean and Coastal Resource Management, National Ocean Service, NOAA, U.S. Department of Commerce, and by the Alabama Department of Conservation and Natural Resources.
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Ocean bottom seismometer data, updated with relocated instrument coordinates, off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Ocean bottom seismometer data in conventional SEG-Y format with relocated instrument coordinates off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
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Processed (STOLT migration) multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Mountain, Gregory
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). LDEO produced this STOLT migration dataset. UTIG later produced a post-processed version (generally filter and AGC; doi: 10.1594/IEDA/500137) of the dataset. Funded by the Office of Naval Research (ONR).
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Processed (STOLT migration) multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Mountain, Gregory
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). LDEO produced this STOLT migration dataset. UTIG later produced a post-processed version (generally filter and AGC; doi: 10.1594/IEDA/500137) of the dataset. Funded by the Office of Naval Research (ONR).
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Processed (STOLT migration) multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Mountain, Gregory
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). LDEO produced this STOLT migration dataset. UTIG later produced a post-processed version (generally filter and AGC; doi: 10.1594/IEDA/500137) of the dataset. Funded by the Office of Naval Research (ONR). DOI: 10.1594/IEDA/500148
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Processed multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Fulthorpe, Craig
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). This dataset was produced by UTIG as a post-processed version (generally filter and AGC) of the original STOLT migrated LDEO dataset (doi: 10.1594/IEDA/500148). Funded by the Office of Naval Research (ONR).
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Processed multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Fulthorpe, Craig
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). This dataset was produced by UTIG as a post-processed version (generally filter and AGC) of the original STOLT migrated LDEO dataset (doi: 10.1594/IEDA/500148). Funded by the Office of Naval Research (ONR).
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Processed multichannel seismic data in the Eel River Basin, offshore northern California, acquired during the R/V Wecoma survey W9605B (1996)
Author(s): Fulthorpe, Craig
Description: During this 1996 cruise of the R/V Wecoma, researchers from the University of Texas Institute for Geophysics (UTIG) and Lamont-Doherty Earth Observatory (LDEO) collected ~2200 line-km of high-resolution multichannel seismic (MCS) reflection data in the Eel River Basin, offshore northern California. The cruise was part of ONR's STRATAFORM program (STRATA FORmation on Margins). This dataset was produced by UTIG as a post-processed version (generally filter and AGC) of the original STOLT migrated LDEO dataset (doi: 10.1594/IEDA/500148). Funded by the Office of Naval Research (ONR). DOI: 10.1594/IEDA/500137
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Reprocessed 4-channel seismic data offshore the Nicoya Peninsula, Costa Rica margin, acquired in 2002 during the R/V Melville survey VANC02MV
Author(s): Fisher, Andrew
Description: This 2002 Melville cruise, which collected 4-channel MCS data, was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Funded by the U.S. NSF (grants OCE00-01892, OCE00-01941, and OCE00-02031). Its companion cruise, Ticoflux I, was on board the R/V Ewing in 2001. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variables affect subduction zone processes, including chemical flux rates. The data were later reprocessed by Jared Kluesner such that the shot spacing and the CDP (or CMP) spacing (half of channel spacing) is forced to be the same (~30 m), resulting in 4 fold data (4 traces per CDP gather). See vanc02mv.README.Kluesner for details.
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Reprocessed 4-channel seismic data offshore the Nicoya Peninsula, Costa Rica margin, acquired in 2002 during the R/V Melville survey VANC02MV
Author(s): Fisher, Andrew
Description: This 2002 Melville cruise, which collected 4-channel MCS data, was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Funded by the U.S. NSF (grants OCE00-01892, OCE00-01941, and OCE00-02031). Its companion cruise, Ticoflux I, was on board the R/V Ewing in 2001. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variables affect subduction zone processes, including chemical flux rates. The data were later reprocessed by Jared Kluesner such that the shot spacing and the CDP (or CMP) spacing (half of channel spacing) is forced to be the same (~30 m), resulting in 4 fold data (4 traces per CDP gather). See vanc02mv.README.Kluesner for details.
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Reprocessed 4-channel seismic data offshore the Nicoya Peninsula, Costa Rica margin, acquired in 2002 during the R/V Melville survey VANC02MV
Author(s): Fisher, Andrew
Description: This 2002 Melville cruise, which collected 4-channel MCS data, was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Funded by the U.S. NSF (grants OCE00-01892, OCE00-01941, and OCE00-02031). Its companion cruise, Ticoflux I, was on board the R/V Ewing in 2001. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variables affect subduction zone processes, including chemical flux rates. The data were later reprocessed by Jared Kluesner such that the shot spacing and the CDP (or CMP) spacing (half of channel spacing) is forced to be the same (~30 m), resulting in 4 fold data (4 traces per CDP gather). See vanc02mv.README.Kluesner for details. DOI: 10.1594/IEDA/500153
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Processed multi-channel seismic data in the Hawaiian Lineation Jurassic Magnetic Quiet Zone, North Pacific Ocean, acquired by the R/V Thomas G. Thompson in 2011 (TN272)
Author(s): Lizarralde, Daniel
Description: This 2011 Thomas G. Thompson cruise surveyed the Hawaiian Lineation Jurassic Magnetic Quiet Zone (JMQZ). Objectives included collecting seismic data that would enable researchers to evaluate whether the Jurassic crust has been affected by later intra-plate Cretaceous volcanism. The survey collected multi-channel seismic reflection data and sonobuoy data. Funded by NSF grants EAR-1029965, OCE-1030430, OCE-1029573, and OCE-1029573.
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Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578.
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1990 (90L566)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund; 90L566 (UTIG Student Cruise 13 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 90L566 collected 3-channel seismic data. The priorities of data acquisition were: seismic reflection profiles of the salt and associated stratigraphy of prospective heat flow sites, surficial sediment character of these sites (as determined by 3.5 kHz profiles, piston, and box cores, micropaleontologic and geochemical sampling of box cores, and shallow plankton tows with supporting water samples and CTD casts). DOI: 10.1594/IEDA/500198
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1990 (90L566)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund; 90L566 (UTIG Student Cruise 13 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 90L566 collected 3-channel seismic data. The priorities of data acquisition were: seismic reflection profiles of the salt and associated stratigraphy of prospective heat flow sites, surficial sediment character of these sites (as determined by 3.5 kHz profiles, piston, and box cores, micropaleontologic and geochemical sampling of box cores, and shallow plankton tows with supporting water samples and CTD casts).
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1990 (90L566)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund; 90L566 (UTIG Student Cruise 13 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 90L566 collected 3-channel seismic data. The priorities of data acquisition were: seismic reflection profiles of the salt and associated stratigraphy of prospective heat flow sites, surficial sediment character of these sites (as determined by 3.5 kHz profiles, piston, and box cores, micropaleontologic and geochemical sampling of box cores, and shallow plankton tows with supporting water samples and CTD casts). DOI: 10.1594/IEDA/500199
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1990 (90L566)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund; 90L566 (UTIG Student Cruise 13 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 90L566 collected 3-channel seismic data. The priorities of data acquisition were: seismic reflection profiles of the salt and associated stratigraphy of prospective heat flow sites, surficial sediment character of these sites (as determined by 3.5 kHz profiles, piston, and box cores, micropaleontologic and geochemical sampling of box cores, and shallow plankton tows with supporting water samples and CTD casts).
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1990 (90L566)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund; 90L566 (UTIG Student Cruise 13 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 90L566 collected 3-channel seismic data. The priorities of data acquisition were: seismic reflection profiles of the salt and associated stratigraphy of prospective heat flow sites, surficial sediment character of these sites (as determined by 3.5 kHz profiles, piston, and box cores, micropaleontologic and geochemical sampling of box cores, and shallow plankton tows with supporting water samples and CTD casts).
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located. DOI: 10.1594/IEDA/500200
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located.
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Behrens, E., William
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located.
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Ocean bottom seismometer (OBS) data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Nakamura, Yosio
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located. DOI: 10.1594/IEDA/500201
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Ocean bottom seismometer (OBS) data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Nakamura, Yosio
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located.
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Ocean bottom seismometer (OBS) data in the Gulf of Mexico, acquired by the R/V Gyre in 1991 (91G01)
Author(s): Nakamura, Yosio
Description: Funded by the University of Texas Institute for Geophysics Student Cruise Fund, 91G01 (UTIG Student Cruise 14) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. 4-channel seismic data was acquired over potential sites for later heat flow studies. Only part of the navigation has been located.
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1991 (91L580)
Author(s): Behrens, E., William
Description: Funded primarily by the University of Texas Institute for Geophysics Student Cruise Fund, 91L580 (UTIG Student Cruise 15 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. Two industry grants provided additional funds. 4-channel seismic data, 99 n.mi of 3.5 kHz data, and cores were acquired as part of a student training cruise. Two primary objectives were 'delineation of salt canopy sutures between coalesced satl structures' and 'delineation and characterization of the downslope termination and upslope origin of at least one channel system on the slope of the Rio Grande Delta.. DOI: 10.1594/IEDA/500202
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1991 (91L580)
Author(s): Behrens, E., William
Description: Funded primarily by the University of Texas Institute for Geophysics Student Cruise Fund, 91L580 (UTIG Student Cruise 15 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. Two industry grants provided additional funds. 4-channel seismic data, 99 n.mi of 3.5 kHz data, and cores were acquired as part of a student training cruise. Two primary objectives were 'delineation of salt canopy sutures between coalesced satl structures' and 'delineation and characterization of the downslope termination and upslope origin of at least one channel system on the slope of the Rio Grande Delta..
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1991 (91L580)
Author(s): Behrens, E., William
Description: Funded primarily by the University of Texas Institute for Geophysics Student Cruise Fund, 91L580 (UTIG Student Cruise 15 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. Two industry grants provided additional funds. 4-channel seismic data, 99 n.mi of 3.5 kHz data, and cores were acquired as part of a student training cruise. Two primary objectives were 'delineation of salt canopy sutures between coalesced satl structures' and 'delineation and characterization of the downslope termination and upslope origin of at least one channel system on the slope of the Rio Grande Delta.. DOI: 10.1594/IEDA/500203
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1991 (91L580)
Author(s): Behrens, E., William
Description: Funded primarily by the University of Texas Institute for Geophysics Student Cruise Fund, 91L580 (UTIG Student Cruise 15 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. Two industry grants provided additional funds. 4-channel seismic data, 99 n.mi of 3.5 kHz data, and cores were acquired as part of a student training cruise. Two primary objectives were 'delineation of salt canopy sutures between coalesced satl structures' and 'delineation and characterization of the downslope termination and upslope origin of at least one channel system on the slope of the Rio Grande Delta..
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Single-channel seismic processed data in the Gulf of Mexico, acquired by the R/V Longhorn in 1991 (91L580)
Author(s): Behrens, E., William
Description: Funded primarily by the University of Texas Institute for Geophysics Student Cruise Fund, 91L580 (UTIG Student Cruise 15 in the Gulf of Mexico) was one of many student cruises conducted by UTIG as a means of introducing students to the collection of marine geophysical data. Two industry grants provided additional funds. 4-channel seismic data, 99 n.mi of 3.5 kHz data, and cores were acquired as part of a student training cruise. Two primary objectives were 'delineation of salt canopy sutures between coalesced satl structures' and 'delineation and characterization of the downslope termination and upslope origin of at least one channel system on the slope of the Rio Grande Delta..
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Phillips, Joseph
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100. DOI: 10.1594/IEDA/500211
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Phillips, Joseph
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100.
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Single-channel seismic field data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Phillips, Joseph
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100.
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Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Nakamura, Yosio
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100. DOI: 10.1594/IEDA/500212
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Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Nakamura, Yosio
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100.
View Data >

Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico, acquired by the R/V Longhorn in 1992 as part of the Gulf Probe VI project (92G06)
Author(s): Nakamura, Yosio
Description: A cooperative, marine geophysical/geological and mammal bioacoustic monitoring investigation, this cruise was conducted in the western Gulf of Mexico by the University of Texas Institute for Geophysics (UTIG), Scripps Institution of Oceanography (SIO), Centro de Investigacion Cientifica y Educacion Superior de Ensenada (CICESE) of Mexico and Texas A and M University (TAMU). The purpose of seismic work was four-fold: I) to determine the velocity-depth profile of the overlying sediments and oceanic crust along the heat flow transect connecting DSDP sites 90 and 91, ii) to examine possible velocity anisotropy in the crust and upper mantle, iii) to identify the top of the ocean crust from interpretation of the normal incidence, seismic reflection pattern of the acoustic basement between Sites 90 and 91 and iv) to field test our newly upgraded, digital recording OBS instruments.The goal of this cruise was to conduct visual and acoustic observations of cetaceans in conjunction with heatflow measurements, shallow and ocean bottom seismic surveys, magnetic and gravity anomaly mapping in the western Gulf of Mexico. Funded by NSF grants OCE 9103341 and OCE 9104100.
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Multi-channel seismic field data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin. DOI: 10.1594/IEDA/500213
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Multi-channel seismic field data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
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Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin. DOI: 10.1594/IEDA/500214
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Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin. DOI: 10.1594/IEDA/500214
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin. DOI: 10.1594/IEDA/500214
View Data >

Processed Multi-channel seismic data in the Gulf of Mexico, acquired by the R/V Gyre in 1995 as part of a student training cruise (95G06)
Author(s): UTIG-ASP
Description: This 1995 R/V?Gyre?survey off the Texas Gulf of Mexico coastline served as a student training cruise.?A UTIG-LDEO collaboration, this cruise also served as a test for a DURIP-funded (Defense University Research Instrumentation Program) high-resolution multichannel seismic system. Funded by the Institute for Geophysics, University of Texas at Austin.
View Data >

Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico off the Yucatan Peninsula, acquired by the R/V Longhorn in 1996 (96L676)
Author(s): Christeson, Gail
Description: The project collected seismic reflection (M/V?GECO Sigma) and refraction data along two lines that cross the Chicxulub KT Impact Crater; Yucatan; Mexico. It represents a joint collaborative effort between the British Institutions Reflection Profiling Syndicate (BIRPS) (UK); the Canadian Geological Survey; Imperial College (UK); the Lunar and Planetary Institute; the Universidad Nacional Aut?noma de M?xico (UNAM); and The University of Texas Institute for Geophysics (UTIG). The OBS wide-angle and refraction data were collected at the same time as the reflection data and are being integrated with the land-based wide-angle data to model the velocity structure of the Chicxulub crater.?The purpose of this joint project was to image in detail the internal crustal structure and morphology of the Chicxulub impact crater and to quantify its dimensions. DOI: 10.1594/IEDA/500215
View Data >

Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico off the Yucatan Peninsula, acquired by the R/V Longhorn in 1996 (96L676)
Author(s): Christeson, Gail
Description: The project collected seismic reflection (M/V?GECO Sigma) and refraction data along two lines that cross the Chicxulub KT Impact Crater; Yucatan; Mexico. It represents a joint collaborative effort between the British Institutions Reflection Profiling Syndicate (BIRPS) (UK); the Canadian Geological Survey; Imperial College (UK); the Lunar and Planetary Institute; the Universidad Nacional Aut?noma de M?xico (UNAM); and The University of Texas Institute for Geophysics (UTIG). The OBS wide-angle and refraction data were collected at the same time as the reflection data and are being integrated with the land-based wide-angle data to model the velocity structure of the Chicxulub crater.?The purpose of this joint project was to image in detail the internal crustal structure and morphology of the Chicxulub impact crater and to quantify its dimensions.
View Data >

Ocean bottom seismometer (OBS) seismic refraction data in the Gulf of Mexico off the Yucatan Peninsula, acquired by the R/V Longhorn in 1996 (96L676)
Author(s): Christeson, Gail
Description: The project collected seismic reflection (M/V?GECO Sigma) and refraction data along two lines that cross the Chicxulub KT Impact Crater; Yucatan; Mexico. It represents a joint collaborative effort between the British Institutions Reflection Profiling Syndicate (BIRPS) (UK); the Canadian Geological Survey; Imperial College (UK); the Lunar and Planetary Institute; the Universidad Nacional Aut?noma de M?xico (UNAM); and The University of Texas Institute for Geophysics (UTIG). The OBS wide-angle and refraction data were collected at the same time as the reflection data and are being integrated with the land-based wide-angle data to model the velocity structure of the Chicxulub crater.?The purpose of this joint project was to image in detail the internal crustal structure and morphology of the Chicxulub impact crater and to quantify its dimensions.
View Data >

Multi-channel field seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Saustrup, Steffen
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500216
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Multi-channel field seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Saustrup, Steffen
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500218
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CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500219
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500219
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Goff, John
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Saustrup, Steffen
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500217
View Data >

Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Saustrup, Steffen
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 as part of a student training cruise (ACAD0801)
Author(s): Saustrup, Steffen
Description: This 2008 R/V Acadiana survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data including multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0802)
Author(s): Goff, John
Description: Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula.?ACAD0803?was Leg 2.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500221
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CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0802)
Author(s): Goff, John
Description: Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula.?ACAD0803?was Leg 2.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0802)
Author(s): Goff, John
Description: Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula.?ACAD0803?was Leg 2.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500222
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0802)
Author(s): Goff, John
Description: Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula.?ACAD0803?was Leg 2.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0802)
Author(s): Goff, John
Description: Leg 1 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula.?ACAD0803?was Leg 2.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0803)
Author(s): Goff, John
Description: Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula. ACAD0802 was Leg 1.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500224
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0803)
Author(s): Goff, John
Description: Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula. ACAD0802 was Leg 1.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0803)
Author(s): Goff, John
Description: Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula. ACAD0802 was Leg 1.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0803)
Author(s): Goff, John
Description: Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula. ACAD0802 was Leg 1.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500223
View Data >

CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2008 during Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008 (ACAD0803)
Author(s): Goff, John
Description: Leg 2 of a rapid response survey of coastal and inlet regions near Galveston, TX, following Hurricane Ike in 2008, this R/V Acadiana survey collected CHIRP data around Bolivar Peninsula. ACAD0802 was Leg 1.?The objective was to compare the results from marine geophysical surveys conducted before (ACAD0801) and just after the passage of the hurricane. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Multi-channel field seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Saustrup, Steffen
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500225
View Data >

Multi-channel field seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Saustrup, Steffen
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500228
View Data >

CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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CHIRP data (envelope processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500227
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CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

CHIRP data (real processing level) in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Goff, John
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Saustrup, Steffen
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500226
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Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Saustrup, Steffen
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Processed multi-channel seismic data in the Gulf of Mexico off Galveston, Texas, acquired by the R/V Acadiana in 2010 as part of a student training cruise (ACAD1001)
Author(s): Saustrup, Steffen
Description: This 2010 R/V?Acadiana?survey investigated the area off Galveston, Texas.?This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. The survey collected multi-channel seismic reflection data and CHIRP data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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CHIRP Seismic Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59. DOI: 10.1594/IEDA/500077
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CHIRP Seismic Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59.
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CHIRP Seismic Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59.
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Raw Multi-Channel Seismic Shot Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59. DOI: 10.1594/IEDA/500075
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Raw Multi-Channel Seismic Shot Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59.
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Processed Multi-Channel Seismic Shot Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59. DOI: 10.1594/IEDA/500076
View Data >

Processed Multi-Channel Seismic Shot Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59.
View Data >

Processed Multi-Channel Seismic Shot Data from the Yakutat and Disenchantment bays, Alaska, acquired during R/V Alaskan Gyre survey AG1208 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Alaskan Gyre survey (also known as USGs field activity 2012-602-FA) collected 24-channel seismic data and CHIRP data in Yakutat and Disenchantment bays, Alaska. The purpose of the cruise was to look for active faults, particularly those related to the 1899 earthquakes in the Yakutat Bay. Funded by USGS-NEHRP grant G12-AP20009 and Consortium for Ocean Leadership grant T341A59.
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Multi-channel seismic field data in Icy Bay and Taan Fjord, Alaska, acquired by the R/V Alaskan Gyre in 2016 (AG1608)
Author(s): Gulick, Sean
Description: Funded by the USGS Earthquake Hazards Program USGS-G16AP00150 and NSF (grant NSF-GLD-1638434), this 2016 R/V Alaskan Gyre survey (also known as USGS field activity 2016-654-FA) was a joint effort between the U.S. Geological Survey, the University of Texas Institute for Geophysics, and Texas A and M University. The survey collected 24-channel seismic data and multibeam data in Icy Bay and Taan Fjord, Alaska. The primary goal was to map and characterize offshore fault structures in Icy Bay associated with the Yakutat/North America deformation front. Secondary scientific objectives included characterizing the 2015 Taan landslide failure and modeling the resultant tsunami, mapping Icy Bay glacial deposits, examining tectonic controls on Taan Fjord, researching the geomorphology and slope processes in Taan Fjord, and identifying paleohazards (MTDs, paleoseismic events, etc.) within the region. DOI: 10.1594/IEDA/500191
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Multi-channel seismic field data in Icy Bay and Taan Fjord, Alaska, acquired by the R/V Alaskan Gyre in 2016 (AG1608)
Author(s): Gulick, Sean
Description: Funded by the USGS Earthquake Hazards Program USGS-G16AP00150 and NSF (grant NSF-GLD-1638434), this 2016 R/V Alaskan Gyre survey (also known as USGS field activity 2016-654-FA) was a joint effort between the U.S. Geological Survey, the University of Texas Institute for Geophysics, and Texas A and M University. The survey collected 24-channel seismic data and multibeam data in Icy Bay and Taan Fjord, Alaska. The primary goal was to map and characterize offshore fault structures in Icy Bay associated with the Yakutat/North America deformation front. Secondary scientific objectives included characterizing the 2015 Taan landslide failure and modeling the resultant tsunami, mapping Icy Bay glacial deposits, examining tectonic controls on Taan Fjord, researching the geomorphology and slope processes in Taan Fjord, and identifying paleohazards (MTDs, paleoseismic events, etc.) within the region.
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Multi-channel seismic processed data in Icy Bay and Taan Fjord, Alaska, acquired by the R/V Alaskan Gyre in 2016 (AG1608)
Author(s): Gulick, Sean
Description: Funded by the USGS Earthquake Hazards Program USGS-G16AP00150 and NSF (grant NSF-GLD-1638434), this 2016 R/V Alaskan Gyre survey (also known as USGS field activity 2016-654-FA) was a joint effort between the U.S. Geological Survey, the University of Texas Institute for Geophysics, and Texas A and M University. The survey collected 24-channel seismic data and multibeam data in Icy Bay and Taan Fjord, Alaska. The primary goal was to map and characterize offshore fault structures in Icy Bay associated with the Yakutat/North America deformation front. Secondary scientific objectives included characterizing the 2015 Taan landslide failure and modeling the resultant tsunami, mapping Icy Bay glacial deposits, examining tectonic controls on Taan Fjord, researching the geomorphology and slope processes in Taan Fjord, and identifying paleohazards (MTDs, paleoseismic events, etc.) within the region. DOI: 10.1594/IEDA/500192
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Multi-channel seismic processed data in Icy Bay and Taan Fjord, Alaska, acquired by the R/V Alaskan Gyre in 2016 (AG1608)
Author(s): Gulick, Sean
Description: Funded by the USGS Earthquake Hazards Program USGS-G16AP00150 and NSF (grant NSF-GLD-1638434), this 2016 R/V Alaskan Gyre survey (also known as USGS field activity 2016-654-FA) was a joint effort between the U.S. Geological Survey, the University of Texas Institute for Geophysics, and Texas A and M University. The survey collected 24-channel seismic data and multibeam data in Icy Bay and Taan Fjord, Alaska. The primary goal was to map and characterize offshore fault structures in Icy Bay associated with the Yakutat/North America deformation front. Secondary scientific objectives included characterizing the 2015 Taan landslide failure and modeling the resultant tsunami, mapping Icy Bay glacial deposits, examining tectonic controls on Taan Fjord, researching the geomorphology and slope processes in Taan Fjord, and identifying paleohazards (MTDs, paleoseismic events, etc.) within the region.
View Data >

Multi-channel seismic processed data in Icy Bay and Taan Fjord, Alaska, acquired by the R/V Alaskan Gyre in 2016 (AG1608)
Author(s): Gulick, Sean
Description: Funded by the USGS Earthquake Hazards Program USGS-G16AP00150 and NSF (grant NSF-GLD-1638434), this 2016 R/V Alaskan Gyre survey (also known as USGS field activity 2016-654-FA) was a joint effort between the U.S. Geological Survey, the University of Texas Institute for Geophysics, and Texas A and M University. The survey collected 24-channel seismic data and multibeam data in Icy Bay and Taan Fjord, Alaska. The primary goal was to map and characterize offshore fault structures in Icy Bay associated with the Yakutat/North America deformation front. Secondary scientific objectives included characterizing the 2015 Taan landslide failure and modeling the resultant tsunami, mapping Icy Bay glacial deposits, examining tectonic controls on Taan Fjord, researching the geomorphology and slope processes in Taan Fjord, and identifying paleohazards (MTDs, paleoseismic events, etc.) within the region.
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CHIRP Data on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Locker, Stan
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964. DOI: 10.1594/IEDA/500049
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CHIRP Data on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Locker, Stan
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964.
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CHIRP Data on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Locker, Stan
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964.
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Field Seismic Data (Boomer Source) on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Saustrup, Steffen
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964. DOI: 10.1594/IEDA/500053
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Field Seismic Data (Boomer Source) on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Saustrup, Steffen
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964.
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Processed Seismic Data (Boomer Source) on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Saustrup, Steffen
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964. DOI: 10.1594/IEDA/500050
View Data >

Processed Seismic Data (Boomer Source) on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Saustrup, Steffen
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964.
View Data >

Processed Seismic Data (Boomer Source) on Sabine Bank, Vanuatu, acquired during R/V Alis expedition ALIS0511 (2005)
Author(s): Saustrup, Steffen
Description: This 2005 R/V Alis survey collected boomer and CHIRP data on Sabine Bank, Vanuatu. An IODP site survey, the objectives included identifying and mapping reef accumulations on the bank. Funding was provided by NSF grant OCE-0517964.
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3D multichannel seismic field data from the San Luis Pass region off Galveston, Texas, acquired by the R/V Brooks-McCall in 2013 (BM1310)
Author(s): Meckel, Timothy
Description: Using a P-Cable system, this 2013 R/V Brooks-McCall survey collected 96-channel short offset 3D seismic data in the San Luis Pass offshore southern Galveston Island, Texas. The cruise was part of an effort to identifiy potential carbon dioxide storage sites offshore Texas in the Gulf of Mexico. Funded by the U.S. Department of Energy (Award DE-FE0001941). DOI: 10.1594/IEDA/500157
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3D multichannel seismic field data from the San Luis Pass region off Galveston, Texas, acquired by the R/V Brooks-McCall in 2013 (BM1310)
Author(s): Meckel, Timothy
Description: Using a P-Cable system, this 2013 R/V Brooks-McCall survey collected 96-channel short offset 3D seismic data in the San Luis Pass offshore southern Galveston Island, Texas. The cruise was part of an effort to identifiy potential carbon dioxide storage sites offshore Texas in the Gulf of Mexico. Funded by the U.S. Department of Energy (Award DE-FE0001941).
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Processed 3D multichannel seismic data from the San Luis Pass region off Galveston, Texas, acquired by the R/V Brooks-McCall in 2013 (BM1310)
Author(s): Meckel, Timothy
Description: Using a P-Cable system, this 2013 R/V Brooks-McCall survey collected 96-channel short offset 3D seismic data in the San Luis Pass offshore southern Galveston Island, Texas. The cruise was part of an effort to identifiy potential carbon dioxide storage sites offshore Texas in the Gulf of Mexico. Funded by the U.S. Department of Energy (Award DE-FE0001941). DOI: 10.1594/IEDA/500158
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Processed 3D multichannel seismic data from the San Luis Pass region off Galveston, Texas, acquired by the R/V Brooks-McCall in 2013 (BM1310)
Author(s): Meckel, Timothy
Description: Using a P-Cable system, this 2013 R/V Brooks-McCall survey collected 96-channel short offset 3D seismic data in the San Luis Pass offshore southern Galveston Island, Texas. The cruise was part of an effort to identifiy potential carbon dioxide storage sites offshore Texas in the Gulf of Mexico. Funded by the U.S. Department of Energy (Award DE-FE0001941).
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Processed 3D multichannel seismic data from the San Luis Pass region off Galveston, Texas, acquired by the R/V Brooks-McCall in 2013 (BM1310)
Author(s): Meckel, Timothy
Description: Using a P-Cable system, this 2013 R/V Brooks-McCall survey collected 96-channel short offset 3D seismic data in the San Luis Pass offshore southern Galveston Island, Texas. The cruise was part of an effort to identifiy potential carbon dioxide storage sites offshore Texas in the Gulf of Mexico. Funded by the U.S. Department of Energy (Award DE-FE0001941).
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Portable HiRes Multi-Channel Seismic Processed Data from the New Jersey Continental Shelf acquired during the R/V Cape Hatteras expedition CH0698 (1998)
Author(s): Alsop, Joyce
Description: This data set was acquired with the LDEO Portable HiRes Multi-Channel Seismic during R/V Cape Hatteras expedition CH0698 conducted in 1998 (Chief Scientist: Dr. Gregory Mountain). A joint project between LDEO and Rutgers University, this project was a detailed, high resolution seismic study of the New Jersey margin. The cruise served as a site survey for IODP Expedition 313. The project had a series of objectives, including seismically tying land drilling to offshore work; mapping spatial variability in imaged Tertiary sediments; examining sea-level fluctuation in seismic data; and surveying shallow water sites for potential future drilling. Data were acquired as part of the project: High-Resolution Nested Imaging of Nearshore Sequences, New Jersey Inner Continental Shelf: Linking Onshore and Offshore Sea-Level Studies, and funding was provided by NSF grant: OCE97-12191. DOI: 10.1594/IEDA/500134
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Portable HiRes Multi-Channel Seismic Processed Data from the New Jersey Continental Shelf acquired during the R/V Cape Hatteras expedition CH0698 (1998)
Author(s): Alsop, Joyce
Description: This data set was acquired with the LDEO Portable HiRes Multi-Channel Seismic during R/V Cape Hatteras expedition CH0698 conducted in 1998 (Chief Scientist: Dr. Gregory Mountain). A joint project between LDEO and Rutgers University, this project was a detailed, high resolution seismic study of the New Jersey margin. The cruise served as a site survey for IODP Expedition 313. The project had a series of objectives, including seismically tying land drilling to offshore work; mapping spatial variability in imaged Tertiary sediments; examining sea-level fluctuation in seismic data; and surveying shallow water sites for potential future drilling. Data were acquired as part of the project: High-Resolution Nested Imaging of Nearshore Sequences, New Jersey Inner Continental Shelf: Linking Onshore and Offshore Sea-Level Studies, and funding was provided by NSF grant: OCE97-12191.
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Portable HiRes Multi-Channel Seismic Processed Data from the New Jersey Continental Shelf acquired during the R/V Cape Hatteras expedition CH0698 (1998)
Author(s): Alsop, Joyce
Description: This data set was acquired with the LDEO Portable HiRes Multi-Channel Seismic during R/V Cape Hatteras expedition CH0698 conducted in 1998 (Chief Scientist: Dr. Gregory Mountain). A joint project between LDEO and Rutgers University, this project was a detailed, high resolution seismic study of the New Jersey margin. The cruise served as a site survey for IODP Expedition 313. The project had a series of objectives, including seismically tying land drilling to offshore work; mapping spatial variability in imaged Tertiary sediments; examining sea-level fluctuation in seismic data; and surveying shallow water sites for potential future drilling. Data were acquired as part of the project: High-Resolution Nested Imaging of Nearshore Sequences, New Jersey Inner Continental Shelf: Linking Onshore and Offshore Sea-Level Studies, and funding was provided by NSF grant: OCE97-12191.
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Single channel field seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Droxler, Andre
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles. DOI: 10.1594/IEDA/500241
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Single channel field seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Droxler, Andre
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles.
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Single channel field seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Droxler, Andre
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles.
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Processed single channel seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Abrams, Lew
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles. DOI: 10.1594/IEDA/500242
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Processed single channel seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Abrams, Lew
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles.
View Data >

Processed single channel seismic data in Pedro Channel, Nicaragua Rise, Caribbean Sea, acquired by the R/V Cape Hatteras in 1994 (CH9204)
Author(s): Abrams, Lew
Description: This 1992 Cape Hatteras collected hi-resolution single-channel seismic data in the Nicaragua Rise region. During leg 1, the SCS and 33.5 kHz data were collected. During leg 2, primarily CTD, piston cores, box cores and rock dredges were collected.?The objective was to connect three previous study sites by a network of high- resolution seismic profiles.
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Raw (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes raw (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch. DOI: 10.1594/IEDA/500249
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Raw (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes raw (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch.
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Raw (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes raw (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch.
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Processed (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite, acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes processed (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch. DOI: 10.1594/IEDA/500250
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Processed (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite, acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes processed (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch.
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Processed (real and envelope) chirp data from the New England Mud Patch in the Mid-Atlantic Bite, acquired during the R/V Hugh R. Sharp survey DK1015.
Author(s): Goff, John
Description: This dataset includes processed (real and envelope) chirp data from near the shelf break south of Cape Code in a region known as the New England Mud Patch. Data were collected as part of a major bottom characterization experiment in 2016 funded by the Ocean Acoustics Program of the Office of Naval Research. To support this experiment, a ~20 km by 20 km reconnaissance survey took place during the summer of 2015. Data were used for stratigraphic analysis of the New England Mud Patch.
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Ocean bottom seismometer data, updated with relocated instrument coordinates, off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Ocean bottom seismometer data in conventional SEG-Y format with relocated instrument coordinates off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM) DOI: 10.1594/IEDA/500017
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Ocean bottom seismometer data, updated with relocated instrument coordinates, off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Ocean bottom seismometer data in conventional SEG-Y format with relocated instrument coordinates off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
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Ocean bottom seismometer data, updated with relocated instrument coordinates, off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm; Lizarralde, Daniel; Christeson, Gail; Shillington, Donna; Becel, Anne; Hornbach, Matthew; Long, Maureen; Harder, Steven; Magnani, M, Beatrice; Gaherty, James; Wiita, Paul
Description: Ocean bottom seismometer data in conventional SEG-Y format with relocated instrument coordinates off North Carolina and Virginia, acquired during R/V Endeavor expedition EN546 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
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Explosion seismic refraction data acquired on land in eastern North Carolina and Virgina as part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE) (2015)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE), the ENAM land experiment collected explosion seismic refraction data by firing 11 shots along the two lines: 6 along Line 2 (southern line) and 5 along Line 1 (northern line) and recording the onshore active-source seismic data on 700+ RefTek 125 digitizers (Texans) and sensors. The goal was obtain data on the crustal and upper mantle structures that will be used interpret the tectonic evolution of the passive margin and of the opening of the Atlantic Ocean. Funded by NSF grants OCE13-48124 and OCE13-47024. DOI: 10.1594/IEDA/500088
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Explosion seismic refraction data acquired on land in eastern North Carolina and Virgina as part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE) (2015)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE), the ENAM land experiment collected explosion seismic refraction data by firing 11 shots along the two lines: 6 along Line 2 (southern line) and 5 along Line 1 (northern line) and recording the onshore active-source seismic data on 700+ RefTek 125 digitizers (Texans) and sensors. The goal was obtain data on the crustal and upper mantle structures that will be used interpret the tectonic evolution of the passive margin and of the opening of the Atlantic Ocean. Funded by NSF grants OCE13-48124 and OCE13-47024.
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Explosion seismic refraction data acquired on land in eastern North Carolina and Virgina as part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE) (2015)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North American Margin (ENAM) Community Seismic Experiment (CSE), the ENAM land experiment collected explosion seismic refraction data by firing 11 shots along the two lines: 6 along Line 2 (southern line) and 5 along Line 1 (northern line) and recording the onshore active-source seismic data on 700+ RefTek 125 digitizers (Texans) and sensors. The goal was obtain data on the crustal and upper mantle structures that will be used interpret the tectonic evolution of the passive margin and of the opening of the Atlantic Ocean. Funded by NSF grants OCE13-48124 and OCE13-47024.
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Processed multichannel seismic data in the Canterbury Basin, New Zealand, acquired during R/V Maurice Ewing expedition EW0001 (2000)
Author(s): Fulthorpe, Craig
Description: This project collected high resolution seismic data in support of a funded NSF proposal: Global and Local Controls on Depositional Cyclicity: the Canterbury Basin, New Zealand. Seismic, multibeam, magnetics and gravity data were acquired concurrently. This marine seismic reflection survey was designed to image high-frequency sedimentary sequences and sediment drifts with the goal of examining the interplay of global (eustacy) and local (tectonics, sediment supply rate and ocean currents) controls responsible for continental margin sedimentation and cyclicity. The data were used to develop an IODP proposal, eventually drilled as IODP Expedition 317 in 2009-2010. Funding was provided by NSF grant OCE-9731031. DOI: 10.1594/IEDA/500007
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Processed multichannel seismic data in the Canterbury Basin, New Zealand, acquired during R/V Maurice Ewing expedition EW0001 (2000)
Author(s): Fulthorpe, Craig
Description: This project collected high resolution seismic data in support of a funded NSF proposal: Global and Local Controls on Depositional Cyclicity: the Canterbury Basin, New Zealand. Seismic, multibeam, magnetics and gravity data were acquired concurrently. This marine seismic reflection survey was designed to image high-frequency sedimentary sequences and sediment drifts with the goal of examining the interplay of global (eustacy) and local (tectonics, sediment supply rate and ocean currents) controls responsible for continental margin sedimentation and cyclicity. The data were used to develop an IODP proposal, eventually drilled as IODP Expedition 317 in 2009-2010. Funding was provided by NSF grant OCE-9731031.
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Processed multichannel seismic data in the Canterbury Basin, New Zealand, acquired during R/V Maurice Ewing expedition EW0001 (2000)
Author(s): Fulthorpe, Craig
Description: This project collected high resolution seismic data in support of a funded NSF proposal: Global and Local Controls on Depositional Cyclicity: the Canterbury Basin, New Zealand. Seismic, multibeam, magnetics and gravity data were acquired concurrently. This marine seismic reflection survey was designed to image high-frequency sedimentary sequences and sediment drifts with the goal of examining the interplay of global (eustacy) and local (tectonics, sediment supply rate and ocean currents) controls responsible for continental margin sedimentation and cyclicity. The data were used to develop an IODP proposal, eventually drilled as IODP Expedition 317 in 2009-2010. Funding was provided by NSF grant OCE-9731031.
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Processed multichannel seismic data along the Galapagos Spreading Center at 91.3W - 95.5W, acquired during the R/V Maurice Ewing survey EW0004 (2000)
Author(s): Ito, Garrett
Description: Part of the Galapagos Plume-Ridge Interaction Multidisciplinary Experiment (G-Prime), this MCS-OBS survey characterized in detail the oceanic created along the Galapagos Spreading Center at 91.3W - 95.5W. The objectives of the project were to: (1) determine how the compensation of the Galapagos swell is partitioned between variations in crustal thickness and mangle density by measuring crustal thickness along the swell and the degree of melting inferred from the chemistry of basalts, (2) determine if there is a threshold factor that controls the transition from an axial high to a rift valley, (3) determine how the extent of magmatic differentiation of ridge basalts relates to the presence or absence of a melt lens, and (4) determine why the degree of partial melting appears to be lower near the hotspot. Funded by NSF grants OCE98-18632, OCE98-19117, and OCE98-18886. DOI: 10.1594/IEDA/500089
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Processed multichannel seismic data along the Galapagos Spreading Center at 91.3W - 95.5W, acquired during the R/V Maurice Ewing survey EW0004 (2000)
Author(s): Ito, Garrett
Description: Part of the Galapagos Plume-Ridge Interaction Multidisciplinary Experiment (G-Prime), this MCS-OBS survey characterized in detail the oceanic created along the Galapagos Spreading Center at 91.3W - 95.5W. The objectives of the project were to: (1) determine how the compensation of the Galapagos swell is partitioned between variations in crustal thickness and mangle density by measuring crustal thickness along the swell and the degree of melting inferred from the chemistry of basalts, (2) determine if there is a threshold factor that controls the transition from an axial high to a rift valley, (3) determine how the extent of magmatic differentiation of ridge basalts relates to the presence or absence of a melt lens, and (4) determine why the degree of partial melting appears to be lower near the hotspot. Funded by NSF grants OCE98-18632, OCE98-19117, and OCE98-18886.
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Processed multichannel seismic data along the Galapagos Spreading Center at 91.3W - 95.5W, acquired during the R/V Maurice Ewing survey EW0004 (2000)
Author(s): Ito, Garrett
Description: Part of the Galapagos Plume-Ridge Interaction Multidisciplinary Experiment (G-Prime), this MCS-OBS survey characterized in detail the oceanic created along the Galapagos Spreading Center at 91.3W - 95.5W. The objectives of the project were to: (1) determine how the compensation of the Galapagos swell is partitioned between variations in crustal thickness and mangle density by measuring crustal thickness along the swell and the degree of melting inferred from the chemistry of basalts, (2) determine if there is a threshold factor that controls the transition from an axial high to a rift valley, (3) determine how the extent of magmatic differentiation of ridge basalts relates to the presence or absence of a melt lens, and (4) determine why the degree of partial melting appears to be lower near the hotspot. Funded by NSF grants OCE98-18632, OCE98-19117, and OCE98-18886.
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Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Author(s): McIntosh, Kirk
Description: Part of the Nicaragua Subduction Factory project, this survey collected over 2500km of seismic data and approximately 580km of OBH refraction data in order to document variations in the subducting Cocos plate structure and stratigraphy and the effects of these variations on the upper (Caribbean) plate. Funding was provided by NSF grants OCE-9905355 and OCE-9909859. DOI: 10.1594/IEDA/500008
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Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Author(s): McIntosh, Kirk
Description: Part of the Nicaragua Subduction Factory project, this survey collected over 2500km of seismic data and approximately 580km of OBH refraction data in order to document variations in the subducting Cocos plate structure and stratigraphy and the effects of these variations on the upper (Caribbean) plate. Funding was provided by NSF grants OCE-9905355 and OCE-9909859.
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Processed multichannel seismic data off the western coast of Nicaragua and Costa Rica, acquired during R/V Maurice Ewing expedition EW0005 (2000)
Author(s): McIntosh, Kirk
Description: Part of the Nicaragua Subduction Factory project, this survey collected over 2500km of seismic data and approximately 580km of OBH refraction data in order to document variations in the subducting Cocos plate structure and stratigraphy and the effects of these variations on the upper (Caribbean) plate. Funding was provided by NSF grants OCE-9905355 and OCE-9909859.
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Processed multichannel seismic data, including SCREECH Transact 1, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Hopper, John
Description: This data set consists of SCREECH Transect 1 (1MCS) and lines 101, 102, and 103. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada. DOI: 10.1594/IEDA/500129
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Processed multichannel seismic data, including SCREECH Transact 1, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Hopper, John
Description: This data set consists of SCREECH Transect 1 (1MCS) and lines 101, 102, and 103. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including SCREECH Transact 1, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Hopper, John
Description: This data set consists of SCREECH Transect 1 (1MCS) and lines 101, 102, and 103. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including the western part of SCREECH Transact 3, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Deemer, Sharon
Description: This data set consists of the western part of SCREECH Transect 3 (3MCS1) and lines 104, 305, 401, 402, and 403. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada. DOI: 10.1594/IEDA/500131
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Processed multichannel seismic data, including the western part of SCREECH Transact 3, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Deemer, Sharon
Description: This data set consists of the western part of SCREECH Transect 3 (3MCS1) and lines 104, 305, 401, 402, and 403. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including the western part of SCREECH Transact 3, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Deemer, Sharon
Description: This data set consists of the western part of SCREECH Transect 3 (3MCS1) and lines 104, 305, 401, 402, and 403. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including SCREECH Transact 2, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Shillington, Donna
Description: This data set consists of SCREECH Transect 2 (2MCS) and lines 105 through 109, 201 through 209, and 301 through 304. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada. DOI: 10.1594/IEDA/500132
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Processed multichannel seismic data, including SCREECH Transact 2, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Shillington, Donna
Description: This data set consists of SCREECH Transect 2 (2MCS) and lines 105 through 109, 201 through 209, and 301 through 304. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including SCREECH Transact 2, crossing the Newfoundland margin, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Shillington, Donna
Description: This data set consists of SCREECH Transect 2 (2MCS) and lines 105 through 109, 201 through 209, and 301 through 304. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCD98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including the eastern part of SCREECH Transact 3, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Lau, Helen
Description: This data set consists of the eastern part of SCREECH Transect 3 (3MCS2) and line 306. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada. DOI: 10.1594/IEDA/500130
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Processed multichannel seismic data, including the eastern part of SCREECH Transact 3, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Lau, Helen
Description: This data set consists of the eastern part of SCREECH Transect 3 (3MCS2) and line 306. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed multichannel seismic data, including the eastern part of SCREECH Transact 3, acquired during the R/V Maurice Ewing survey EW0007 2000)
Author(s): Lau, Helen
Description: This data set consists of the eastern part of SCREECH Transect 3 (3MCS2) and line 306. This ODP site survey on the Newfoundland margin was a joint project, SCREECH (Studies of Continental Rifting and Extension on the Eastern Canadian SHelf), between the University of Wyoming, WHOI, Dalhousie University, and Danish Lithosphere Centre scientists. The Ewing acquired MCS, magnetic, gravity, and multibeam bathymetric data while the Oceanus acquired wide-angle reflection/refraction data via ocean-bottom seismometers/hydrophones (OBS/Hs). This cruise was to provide a critical dataset for testing models of continental rifting, breakup, and initiation of seafloor spreading in a non-volcanic rifted environment. Its objectives were to: 1) characterize the nature of the crust transitional between oceanic and continental crust in the region; 2) provide a comparison with the Iberian margin, thereby allowing testing of models of pure-shear vs. simple-shear during rifting; and 3) determine the amount of igneous material intruded and extruded during rifting, providing comparative data with other volcanic rifted margins, such as the East Greenland margin. Funding was provided by NSF (grants OCE98-19599 and OCE98-19053), Dalhousie University, Geological Survey of Denmark and Greenland, Danish National Research Foundation (Danmarks Grundforskningsfond), and the Natural Sciences and Engineering Council of Canada.
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Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)
Author(s): Hornbach, Matthew
Description: This R/V Ewing cruise was proposed to obtain two related seismic data sets: 1) 3D image of the hydrate deposits and 2) a study of the P to S converted waves in the hydrate province. The obtained information, when combined with chemical, sedimentological and downhole logging information from Leg 164 would constitute a rare opportunity to establish benchmarck linkages between seismic signature (reflectivity, P-velocity, S-velocity) and amounts and distribution of hydrate and free gas. The data would also provide basic 3D geometries of stratigraphy, structures, hydrate concentration, and gas accumulations over the study area. This 3D seismic survey over the gas-hydrate field on Blake Ridge was planned with the objective to extend information from ODP sites drilled during Leg 164 over a part of the hydrate province. Funded by NSF grant OCE99-10966 and the U.S. Dept of Energy. DOI: 10.1594/IEDA/500090
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Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)
Author(s): Hornbach, Matthew
Description: This R/V Ewing cruise was proposed to obtain two related seismic data sets: 1) 3D image of the hydrate deposits and 2) a study of the P to S converted waves in the hydrate province. The obtained information, when combined with chemical, sedimentological and downhole logging information from Leg 164 would constitute a rare opportunity to establish benchmarck linkages between seismic signature (reflectivity, P-velocity, S-velocity) and amounts and distribution of hydrate and free gas. The data would also provide basic 3D geometries of stratigraphy, structures, hydrate concentration, and gas accumulations over the study area. This 3D seismic survey over the gas-hydrate field on Blake Ridge was planned with the objective to extend information from ODP sites drilled during Leg 164 over a part of the hydrate province. Funded by NSF grant OCE99-10966 and the U.S. Dept of Energy.
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Processed 3D volume of multichannel seismic data on the Blake Ridge, acquired during R/V Maurice Ewing expedition EW0008 (2000)
Author(s): Hornbach, Matthew
Description: This R/V Ewing cruise was proposed to obtain two related seismic data sets: 1) 3D image of the hydrate deposits and 2) a study of the P to S converted waves in the hydrate province. The obtained information, when combined with chemical, sedimentological and downhole logging information from Leg 164 would constitute a rare opportunity to establish benchmarck linkages between seismic signature (reflectivity, P-velocity, S-velocity) and amounts and distribution of hydrate and free gas. The data would also provide basic 3D geometries of stratigraphy, structures, hydrate concentration, and gas accumulations over the study area. This 3D seismic survey over the gas-hydrate field on Blake Ridge was planned with the objective to extend information from ODP sites drilled during Leg 164 over a part of the hydrate province. Funded by NSF grant OCE99-10966 and the U.S. Dept of Energy.
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Processed multichannel seismic data along the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW0102 (2001)
Author(s): Canales, JuanPablo; Tucholke, Brian
Description: This MCS cruise surveyed three well-developed smoothly-domed, turtleback shaped exposures (termed megamullions) of deep-crustal plutonic and upper-mantle ultramafic rock that occur on the flanks of the Mid-Atlantic Ridge. The objectives were to establish the upper seismic velocity structure of these megamullions both laterally and vertically, to gain insight into the deep nature of the oceanic crust and upper mantle now exposed in these megamullions, and to gain a better understanding of how and why megamullions form. This survey was to serve as a foundational site survey to Ocean Drilling Program (ODP) proposals 512-Full and 532-Full and addresses several crustal objectives of the ODP Long Range Plan. Funded by NSF grant OCE99-87004. DOI: 10.1594/IEDA/500091
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Processed multichannel seismic data along the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW0102 (2001)
Author(s): Canales, JuanPablo; Tucholke, Brian
Description: This MCS cruise surveyed three well-developed smoothly-domed, turtleback shaped exposures (termed megamullions) of deep-crustal plutonic and upper-mantle ultramafic rock that occur on the flanks of the Mid-Atlantic Ridge. The objectives were to establish the upper seismic velocity structure of these megamullions both laterally and vertically, to gain insight into the deep nature of the oceanic crust and upper mantle now exposed in these megamullions, and to gain a better understanding of how and why megamullions form. This survey was to serve as a foundational site survey to Ocean Drilling Program (ODP) proposals 512-Full and 532-Full and addresses several crustal objectives of the ODP Long Range Plan. Funded by NSF grant OCE99-87004.
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Processed multichannel seismic data along the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW0102 (2001)
Author(s): Canales, JuanPablo; Tucholke, Brian
Description: This MCS cruise surveyed three well-developed smoothly-domed, turtleback shaped exposures (termed megamullions) of deep-crustal plutonic and upper-mantle ultramafic rock that occur on the flanks of the Mid-Atlantic Ridge. The objectives were to establish the upper seismic velocity structure of these megamullions both laterally and vertically, to gain insight into the deep nature of the oceanic crust and upper mantle now exposed in these megamullions, and to gain a better understanding of how and why megamullions form. This survey was to serve as a foundational site survey to Ocean Drilling Program (ODP) proposals 512-Full and 532-Full and addresses several crustal objectives of the ODP Long Range Plan. Funded by NSF grant OCE99-87004.
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Processed multichannel seismic data offshore the Costa Rica margin, acquired during the R/V Maurice Ewing survey EW0104 (2001)
Author(s): Silver, Eli
Description: This 2001 Ewing cruise was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Its companion cruise, Ticoflux II, was on board the R/V Melville in 2002. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variable affect subduction zone processes, including chemical flux rates. Funded by NSF OCE00-01892, OCD00-01944, OCE00-02031. DOI: 10.1594/IEDA/500092
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Processed multichannel seismic data offshore the Costa Rica margin, acquired during the R/V Maurice Ewing survey EW0104 (2001)
Author(s): Silver, Eli
Description: This 2001 Ewing cruise was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Its companion cruise, Ticoflux II, was on board the R/V Melville in 2002. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variable affect subduction zone processes, including chemical flux rates. Funded by NSF OCE00-01892, OCD00-01944, OCE00-02031.
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Processed multichannel seismic data offshore the Costa Rica margin, acquired during the R/V Maurice Ewing survey EW0104 (2001)
Author(s): Silver, Eli
Description: This 2001 Ewing cruise was part of a multidisciplinary investigation of the thermal state of the subducting lithosphere offshore of the Costa Rica margin. Its companion cruise, Ticoflux II, was on board the R/V Melville in 2002. The goals were to determine the comparative thermal state of the subducting lithosphere in these regions, the associated heat and fluid fluxes responsible for the subducting slab thermal states, and how these variable affect subduction zone processes, including chemical flux rates. Funded by NSF OCE00-01892, OCD00-01944, OCE00-02031.
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Processed multichannel seismic data south of Bermuda, acquired during the R/V Maurice Ewing survey EW0106 (2001)
Author(s): Lizarralde, Daniel
Description: The FAIM (Far-offset Active-source Imaging of the Mantle) project collected MCS and OBS data south of Bermuda. The purpose was to acquire long-offset MCS and OBS data from crust and mantle created during slow spreading. The scientific goals of this experiment involve inferring oceanic mantle dynamic processes from the seismic structure of the upper mantle. Funded by NSF grants OCE00-02417 and OCE00-2674. DOI: 10.1594/IEDA/500093
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Processed multichannel seismic data south of Bermuda, acquired during the R/V Maurice Ewing survey EW0106 (2001)
Author(s): Lizarralde, Daniel
Description: The FAIM (Far-offset Active-source Imaging of the Mantle) project collected MCS and OBS data south of Bermuda. The purpose was to acquire long-offset MCS and OBS data from crust and mantle created during slow spreading. The scientific goals of this experiment involve inferring oceanic mantle dynamic processes from the seismic structure of the upper mantle. Funded by NSF grants OCE00-02417 and OCE00-2674.
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Processed multichannel seismic data south of Bermuda, acquired during the R/V Maurice Ewing survey EW0106 (2001)
Author(s): Lizarralde, Daniel
Description: The FAIM (Far-offset Active-source Imaging of the Mantle) project collected MCS and OBS data south of Bermuda. The purpose was to acquire long-offset MCS and OBS data from crust and mantle created during slow spreading. The scientific goals of this experiment involve inferring oceanic mantle dynamic processes from the seismic structure of the upper mantle. Funded by NSF grants OCE00-02417 and OCE00-2674.
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Processed multichannel seismic data in the Gulf of Corinth, acquired during the R/V Maurice Ewing survey EW0108 (2001)
Author(s): Moore, Gregory
Description: This study's primary analyses were to focus on determining the mode of deformation in the Gulf of Corinth rift and how the deformation varies along strike. The project was undertaken in cooperation with Greek and French scientists. The purpose was to image active rifting in the Gulf of Corinth, the regional crustal structure, and to provide a site survey for future IODP drilling. Funded by NSF grant OCE00-99277. DOI: 10.1594/IEDA/500094
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Processed multichannel seismic data in the Gulf of Corinth, acquired during the R/V Maurice Ewing survey EW0108 (2001)
Author(s): Moore, Gregory
Description: This study's primary analyses were to focus on determining the mode of deformation in the Gulf of Corinth rift and how the deformation varies along strike. The project was undertaken in cooperation with Greek and French scientists. The purpose was to image active rifting in the Gulf of Corinth, the regional crustal structure, and to provide a site survey for future IODP drilling. Funded by NSF grant OCE00-99277.
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Processed multichannel seismic data in the Gulf of Corinth, acquired during the R/V Maurice Ewing survey EW0108 (2001)
Author(s): Moore, Gregory
Description: This study's primary analyses were to focus on determining the mode of deformation in the Gulf of Corinth rift and how the deformation varies along strike. The project was undertaken in cooperation with Greek and French scientists. The purpose was to image active rifting in the Gulf of Corinth, the regional crustal structure, and to provide a site survey for future IODP drilling. Funded by NSF grant OCE00-99277.
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Processed multichannel seismic data off the Exmouth and Cuvier margin, northwestern Australia, acquired during the R/V Maurice Ewing survey EW0113 (2001)
Author(s): Moore, Gregory
Description: The Exmouth and Cuvier margin system represents one of the best locales to study the differences between wide versus narrow rifts and to define the interplay between strain partitioning, volcanism, segmentation, and the continent-ocean transition. This geophysical investigation of the Exmouth and Cuvier margins was designed to test alternate models for continental margin development, and when these results are integrated with those from other margin studies, will lead to a better overall understanding and appreciation of: the strain partitioning across margins between the brittle upper crust and the ductile lower crust and lithospheric mantle (e.g., the upper plate paradox); the interplay between extensional style (rift architecture), magmatism and detachments; the continent-ocean transition, and the origin of magnetic anomalies observed off the Exmouth and Cuvier margin; the formation of seaward-dipping reflectors along the continent-ocean boundaries and the importance of faults in their formation. Funded by NSF grants OCE99-11877, OCE99-12007, OCE99-11962. DOI: 10.1594/IEDA/500095
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Processed multichannel seismic data off the Exmouth and Cuvier margin, northwestern Australia, acquired during the R/V Maurice Ewing survey EW0113 (2001)
Author(s): Moore, Gregory
Description: The Exmouth and Cuvier margin system represents one of the best locales to study the differences between wide versus narrow rifts and to define the interplay between strain partitioning, volcanism, segmentation, and the continent-ocean transition. This geophysical investigation of the Exmouth and Cuvier margins was designed to test alternate models for continental margin development, and when these results are integrated with those from other margin studies, will lead to a better overall understanding and appreciation of: the strain partitioning across margins between the brittle upper crust and the ductile lower crust and lithospheric mantle (e.g., the upper plate paradox); the interplay between extensional style (rift architecture), magmatism and detachments; the continent-ocean transition, and the origin of magnetic anomalies observed off the Exmouth and Cuvier margin; the formation of seaward-dipping reflectors along the continent-ocean boundaries and the importance of faults in their formation. Funded by NSF grants OCE99-11877, OCE99-12007, OCE99-11962.
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Processed multichannel seismic data off the Exmouth and Cuvier margin, northwestern Australia, acquired during the R/V Maurice Ewing survey EW0113 (2001)
Author(s): Moore, Gregory
Description: The Exmouth and Cuvier margin system represents one of the best locales to study the differences between wide versus narrow rifts and to define the interplay between strain partitioning, volcanism, segmentation, and the continent-ocean transition. This geophysical investigation of the Exmouth and Cuvier margins was designed to test alternate models for continental margin development, and when these results are integrated with those from other margin studies, will lead to a better overall understanding and appreciation of: the strain partitioning across margins between the brittle upper crust and the ductile lower crust and lithospheric mantle (e.g., the upper plate paradox); the interplay between extensional style (rift architecture), magmatism and detachments; the continent-ocean transition, and the origin of magnetic anomalies observed off the Exmouth and Cuvier margin; the formation of seaward-dipping reflectors along the continent-ocean boundaries and the importance of faults in their formation. Funded by NSF grants OCE99-11877, OCE99-12007, OCE99-11962.
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Processed multichannel seismic data along the Southeast Indian Ridge, acquired during the R/V Maurice Ewing survey EW0114 (2001)
Author(s): Alsop, Joyce
Description: This cruise along the Southeast Indian Ridge collected both MCS and OBH data in order to investigate the effects of temperature variations on magma supply and the crustal accretion process. The objectives were to determine the internal structure of the crust, particularly Layer 2A (extrusive) thickness and its relationship both to melt supply and to axial and abyssal hill crustal structure and to axial and ridge flank morphology, in order to better understand the crustal accretion process. Funded by NSF grant OCE99-11720. DOI: 10.1594/IEDA/500096
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Processed multichannel seismic data along the Southeast Indian Ridge, acquired during the R/V Maurice Ewing survey EW0114 (2001)
Author(s): Alsop, Joyce
Description: This cruise along the Southeast Indian Ridge collected both MCS and OBH data in order to investigate the effects of temperature variations on magma supply and the crustal accretion process. The objectives were to determine the internal structure of the crust, particularly Layer 2A (extrusive) thickness and its relationship both to melt supply and to axial and abyssal hill crustal structure and to axial and ridge flank morphology, in order to better understand the crustal accretion process. Funded by NSF grant OCE99-11720.
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Processed multichannel seismic data along the Southeast Indian Ridge, acquired during the R/V Maurice Ewing survey EW0114 (2001)
Author(s): Alsop, Joyce
Description: This cruise along the Southeast Indian Ridge collected both MCS and OBH data in order to investigate the effects of temperature variations on magma supply and the crustal accretion process. The objectives were to determine the internal structure of the crust, particularly Layer 2A (extrusive) thickness and its relationship both to melt supply and to axial and abyssal hill crustal structure and to axial and ridge flank morphology, in order to better understand the crustal accretion process. Funded by NSF grant OCE99-11720.
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0202 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise served as part 1 of the study, concentrating on MCS profiling. Its companion cruise, EW0203, deployed Ocean Bottom Seismographs (OBSs) and shot MCS lines over them. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878. DOI: 10.1594/IEDA/500097
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0202 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise served as part 1 of the study, concentrating on MCS profiling. Its companion cruise, EW0203, deployed Ocean Bottom Seismographs (OBSs) and shot MCS lines over them. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878.
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0202 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise served as part 1 of the study, concentrating on MCS profiling. Its companion cruise, EW0203, deployed Ocean Bottom Seismographs (OBSs) and shot MCS lines over them. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878.
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise, EW0203, served as part 2 of the study, deploying Ocean Bottom Seismographs (OBSs) and shooting MCS lines over them. Its companion cruise, EW0202, concentrated on MCS profiling. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878. DOI: 10.1594/IEDA/500098
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise, EW0203, served as part 2 of the study, deploying Ocean Bottom Seismographs (OBSs) and shooting MCS lines over them. Its companion cruise, EW0202, concentrated on MCS profiling. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878.
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Processed multichannel seismic data across the Mariana island-arc system, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Moore, Gregory
Description: The MARGINS programs in the US and Japan (of NSF and MEXT) funded an integrated seismic study (marine multi-channel seismic reflection, controlled-source wideangle reflection/refraction, and passive recording of local and teleseismic earthquakes) to provide a comprehensive velocity, attenuation, structural and stratigraphic image of the Mariana island-arc system, from the subducting Pacific Plate to the backarc, at 14-20N, 141-149E. The study included two cruises, EW0202 and EW0203. This cruise, EW0203, served as part 2 of the study, deploying Ocean Bottom Seismographs (OBSs) and shooting MCS lines over them. Its companion cruise, EW0202, concentrated on MCS profiling. The principal objectives of the study were to understand: 1) velocity and attenuation structure of the mantle, 2) large-scale flow of the mantle wedge, 3) velocity structure of the subducting oceanic crust, 4) seismic stratigraphy and structure of the forearc, arc and remnant arc, 5) the magma chamber below the volcanoes, 6) a possible double seismic zone, and 7) updip an downdip limits of the seismogenic zone. Funded by NSF grants OCE00-01798, OCE00-01956, OCE00-01938, OCE00-02878.
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Processed multichannel seismic data across the Juan de Fuca ridge flanks, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Alsop, Joyce
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600. DOI: 10.1594/IEDA/500002
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Processed multichannel seismic data across the Juan de Fuca ridge flanks, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Alsop, Joyce
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data across the Juan de Fuca ridge flanks, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Alsop, Joyce
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the Endeavour segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): VanArk, Emily
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600. DOI: 10.1594/IEDA/500003
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Processed multichannel seismic data at the Endeavour segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): VanArk, Emily
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the Endeavour segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): VanArk, Emily
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the Axial Seamount segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Kent, Graham
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600. DOI: 10.1594/IEDA/500004
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Processed multichannel seismic data at the Axial Seamount segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Kent, Graham
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the Axial Seamount segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Kent, Graham
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the southern segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Canales, JuanPablo
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600. DOI: 10.1594/IEDA/500005
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Processed multichannel seismic data at the southern segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Canales, JuanPablo
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data at the southern segment of the Juan de Fuca ridge, acquired in 2002 as part of an investigation of axial crustal structure and alteration of the upper crust at the Juan de Fuca spreading center
Author(s): Canales, JuanPablo
Description: This project was an integrated multichannel seismic investigation of the intermediate-spreading Juan de Fuca Ridge. The primary goals were: (1) to determine the location, size and physical properties of crustal magma bodies along the ridge and relate these properties to the recent eruptive history of the ridge, (2) to measure the variation in velocity and thickness of the indicators of magmatic state, and (3) to characterize the alteration history of the upper crust as a function of sedimentation history, crustal age and basement relief. Funding was provided by NSF grants OCE-0002488, OCE-0002551, and OCE-0002600.
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Processed multichannel seismic data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Bangs, Nathan
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487. DOI: 10.1594/IEDA/500099
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Processed multichannel seismic data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Bangs, Nathan
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487.
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Processed multichannel seismic data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Bangs, Nathan
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487.
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Ocean Bottom Seismometer (OBS) data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Nakamura, Yosio
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487. DOI: 10.1594/IEDA/500100
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Ocean Bottom Seismometer (OBS) data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Nakamura, Yosio
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487.
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Ocean Bottom Seismometer (OBS) data across Hydrate Ridge, Cascadia convergent margin, northwest Pacific, acquired during the R/V Maurice Ewing survey EW0203 (2002)
Author(s): Nakamura, Yosio
Description: This 3-D survey was conducted at the Hydrate Ridge, Cascadia convergent margin, northwest Pacific. The seismic experiment used the R/V Maurice Ewing and the Joides Resolution to collect multichannel seismic (MCS) data, vertical seismic profile (VSP) data, and ocean-bottom seismometer (OBS) data. This cruise was designed to acquire three sets of seismic data to map the elastic properties of gas hydrates. This was a three-part project to examine gas hydrate properties in the vicinity of an Ocean Drilling Program set of wells. Funded by NSF grant OCE0002487.
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Processed multichannel seismic data (brute stacks) in the Gulf of California, acquired during the R/V Maurice Ewing survey EW0210 (2002)
Author(s): Lizarralde, Daniel
Description: Funded through NSF MARGINS, this Gulf of California experiment (PESCADOR: Premiere Experiment, Sea of Cortez, Addressing the Development of Oblique Rifting) involved two ships, the R/V Maurice Ewing and the R/V New Horizon. The Ewing provided the acoustic source and acquired multi-channel seismic data, and the New Horizon tended to 206 deployments of ocean bottom seismometers. The purpose was to delineate the geometries and patterns of crustal extension and rift magmatism along three main conjugate margins across Alarcon, Guaymas and Delfin Basins (to study the south to north seafloor-spreading to non-spreading mode) and a E-W profile along Wagner Basin (to study the low-angle detachment fault at depth). The questions to be addressed included strain partitioning, volumetric and emplacement style of rift magmatism, along-axis differences in extension style and the influence of sedimentation on deformation. This data set consists of real-time stacks made at sea. Funded by NSF grants OCE01-11983, OCE01-12149, OCE01-12058, OCE01-12152, and OCe01-11738. DOI: 10.1594/IEDA/500101
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Processed multichannel seismic data (brute stacks) in the Gulf of California, acquired during the R/V Maurice Ewing survey EW0210 (2002)
Author(s): Lizarralde, Daniel
Description: Funded through NSF MARGINS, this Gulf of California experiment (PESCADOR: Premiere Experiment, Sea of Cortez, Addressing the Development of Oblique Rifting) involved two ships, the R/V Maurice Ewing and the R/V New Horizon. The Ewing provided the acoustic source and acquired multi-channel seismic data, and the New Horizon tended to 206 deployments of ocean bottom seismometers. The purpose was to delineate the geometries and patterns of crustal extension and rift magmatism along three main conjugate margins across Alarcon, Guaymas and Delfin Basins (to study the south to north seafloor-spreading to non-spreading mode) and a E-W profile along Wagner Basin (to study the low-angle detachment fault at depth). The questions to be addressed included strain partitioning, volumetric and emplacement style of rift magmatism, along-axis differences in extension style and the influence of sedimentation on deformation. This data set consists of real-time stacks made at sea. Funded by NSF grants OCE01-11983, OCE01-12149, OCE01-12058, OCE01-12152, and OCe01-11738.
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Processed multichannel seismic data (brute stacks) in the Gulf of California, acquired during the R/V Maurice Ewing survey EW0210 (2002)
Author(s): Lizarralde, Daniel
Description: Funded through NSF MARGINS, this Gulf of California experiment (PESCADOR: Premiere Experiment, Sea of Cortez, Addressing the Development of Oblique Rifting) involved two ships, the R/V Maurice Ewing and the R/V New Horizon. The Ewing provided the acoustic source and acquired multi-channel seismic data, and the New Horizon tended to 206 deployments of ocean bottom seismometers. The purpose was to delineate the geometries and patterns of crustal extension and rift magmatism along three main conjugate margins across Alarcon, Guaymas and Delfin Basins (to study the south to north seafloor-spreading to non-spreading mode) and a E-W profile along Wagner Basin (to study the low-angle detachment fault at depth). The questions to be addressed included strain partitioning, volumetric and emplacement style of rift magmatism, along-axis differences in extension style and the influence of sedimentation on deformation. This data set consists of real-time stacks made at sea. Funded by NSF grants OCE01-11983, OCE01-12149, OCE01-12058, OCE01-12152, and OCe01-11738.
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Processed multichannel seismic data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2000)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas?Funding was provided by NSF grants OCE-0137286. DOI: 10.1594/IEDA/500009
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Processed multichannel seismic data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2000)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas?Funding was provided by NSF grants OCE-0137286.
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Processed multichannel seismic data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2000)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas?Funding was provided by NSF grants OCE-0137286.
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Ocean bottom seismometer data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2003)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286. DOI: 10.1594/IEDA/500010
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Ocean bottom seismometer data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2003)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Ocean bottom seismometer data at Hess Deep, acquired during R/V Maurice Ewing expedition EW0305 (2003)
Author(s): Christeson, Gail
Description: This cruise acquired 16 scarp-parallel MCS profiles and 7 scarp-perpendicular MCS profiles as well as OBS data across the Hess Deep, near the Pacific-Cocos-Nazca triple junction, eastern Pacific Ocean. A companion program, EW0410, took place in October-November 2004 along the Blanco Transform Fault. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail; Escalona, Alejandro
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588. DOI: 10.1594/IEDA/500102
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail; Escalona, Alejandro
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail; Escalona, Alejandro
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Magnani, M, Beatrice
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588. DOI: 10.1594/IEDA/500103
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Magnani, M, Beatrice
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
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Processed multichannel seismic data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Magnani, M, Beatrice
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
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Ocean bottom seismometer (OBS) data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588. DOI: 10.1594/IEDA/500104
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Ocean bottom seismometer (OBS) data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
View Data >

Ocean bottom seismometer (OBS) data across the Caribbean-northeastern South America arc-continent collision zone, acquired during the R/V Maurice Ewing survey EW0404 (2004)
Author(s): Christeson, Gail
Description: Three teams were involved in the active-source seismic field program: 1) A science party aboard the R/V Maurice Ewing (co-chief scientists P. Mann and D. Sawyer) acquired approximately 6000 km of seismic reflection data. 2) A science party aboard the R/V Seward Johnson II (chief scientist G. Christeson, cruise report) deployed and recovered ocean bottom seismometers (OBSs) along 5 transects; the Ewing provided the seismic source for these instruments. 3) A science party in Venezuela and the ABC islands deployed and recovered seismographs along 4 transects and the island arc; the Ewing and 8 land shots provided the seismic source for these instruments. The purpose was to carry out a geologic-geophysical investigation to test hypotheses related to arc-continent collision and accretion, HP/LT rock exhumation and development of folded belts. Funded by NSF grant OCE0003588.
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Processed multichannel seismic data along the southern Alaskan margin, acquired during the R/V Maurice Ewing survey EW0408 (2004)
Author(s): Gulick, Sean
Description: As part of a site survey for a proposed IODP program to drill marine sediments associated with late Cenozoic climate change and tectonic activity along the southern Alaskan margin, the researchers combined efforts with an already funded piston coring and shallow imaging cruise. The purpose was to acquire additional piston cores and high-resolution seismic images at proposed Gulf of Alaska drill sites. The marine seismic data is to be used in sequence stratigraphic correlations and baseline characterization of the proposed IODP drill sites. Funded by NSF grants OCE02-41828, OCE02-42084, OCE03-51043, OCE03-51062, OCE03-51075, OCE03-51089, OCE03-51096, OCE03-51620, and OCE04-55183. DOI: 10.1594/IEDA/500105
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Processed multichannel seismic data along the southern Alaskan margin, acquired during the R/V Maurice Ewing survey EW0408 (2004)
Author(s): Gulick, Sean
Description: As part of a site survey for a proposed IODP program to drill marine sediments associated with late Cenozoic climate change and tectonic activity along the southern Alaskan margin, the researchers combined efforts with an already funded piston coring and shallow imaging cruise. The purpose was to acquire additional piston cores and high-resolution seismic images at proposed Gulf of Alaska drill sites. The marine seismic data is to be used in sequence stratigraphic correlations and baseline characterization of the proposed IODP drill sites. Funded by NSF grants OCE02-41828, OCE02-42084, OCE03-51043, OCE03-51062, OCE03-51075, OCE03-51089, OCE03-51096, OCE03-51620, and OCE04-55183.
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Processed multichannel seismic data along the southern Alaskan margin, acquired during the R/V Maurice Ewing survey EW0408 (2004)
Author(s): Gulick, Sean
Description: As part of a site survey for a proposed IODP program to drill marine sediments associated with late Cenozoic climate change and tectonic activity along the southern Alaskan margin, the researchers combined efforts with an already funded piston coring and shallow imaging cruise. The purpose was to acquire additional piston cores and high-resolution seismic images at proposed Gulf of Alaska drill sites. The marine seismic data is to be used in sequence stratigraphic correlations and baseline characterization of the proposed IODP drill sites. Funded by NSF grants OCE02-41828, OCE02-42084, OCE03-51043, OCE03-51062, OCE03-51075, OCE03-51089, OCE03-51096, OCE03-51620, and OCE04-55183.
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Processed multichannel seismic data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286. DOI: 10.1594/IEDA/500012
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Processed multichannel seismic data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Processed multichannel seismic data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Ocean bottom seismometer data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286. DOI: 10.1594/IEDA/500011
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Ocean bottom seismometer data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Ocean bottom seismometer data at the Blanco Transform in the Pacific Ocean, acquired during R/V Maurice Ewing expedition EW0410 (2004)
Author(s): Christeson, Gail
Description: The Blanco Transform Seismic cruise acquired marine seismic reflection and refraction data at the Blanco Transform in the Pacific Ocean. A companion program, EW0305, took place in 2003 where fast-spreading oceanic crust is exposed at Hess Deep. The primary objective of the cruise was to make a direct link between the geologic and seismic structure of intermediate-spreading oceanic crust. Questions that were to be addressed by the seismic experiments include: 1) Is there a correlation between seismic and geologic structure at the Blanco Transform? 2) Is the seismic structure at the Blanco Transform typical of intermediate-spreading crust? 3) What is the evolution of the shallow velocity structure from zero-age rise-axis crust to the 0.65-1.65 Ma crust in the study areas? Funding was provided by NSF grants OCE-0137286.
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Processed multichannel seismic data in the Sandino forearc basin, offshore Costa Rica, Nicaragua, Honduras and El Salvador, acquired during R/V Maurice Ewing expedition EW0412 (2004)
Author(s): McIntosh, Kirk; Fulthorpe, Craig
Description: The EW0412 expedition was part of NicStrat, a project designed to image Neogene depositional sequences indicative of sea-level change and stratal geometries that may reflect local tectonic history. The primary objectives were 1) to test the hypothesis that the stratigraphic records of eustatic and tectonic processes can be identified and distinguished on high-resolution MCS data from the Sandino forearc basin, on the Pacific margin of Nicaragua; and 2) to evaluate the record of tectonic events in the form of local unconformities and/or tectonically controlled variations in the geometries and stacking patterns of regional eustatic sequences. Funding was provided by NSF grant OCE-0241179. DOI: 10.1594/IEDA/500006
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Processed multichannel seismic data in the Sandino forearc basin, offshore Costa Rica, Nicaragua, Honduras and El Salvador, acquired during R/V Maurice Ewing expedition EW0412 (2004)
Author(s): McIntosh, Kirk; Fulthorpe, Craig
Description: The EW0412 expedition was part of NicStrat, a project designed to image Neogene depositional sequences indicative of sea-level change and stratal geometries that may reflect local tectonic history. The primary objectives were 1) to test the hypothesis that the stratigraphic records of eustatic and tectonic processes can be identified and distinguished on high-resolution MCS data from the Sandino forearc basin, on the Pacific margin of Nicaragua; and 2) to evaluate the record of tectonic events in the form of local unconformities and/or tectonically controlled variations in the geometries and stacking patterns of regional eustatic sequences. Funding was provided by NSF grant OCE-0241179.
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Processed multichannel seismic data in the Sandino forearc basin, offshore Costa Rica, Nicaragua, Honduras and El Salvador, acquired during R/V Maurice Ewing expedition EW0412 (2004)
Author(s): McIntosh, Kirk; Fulthorpe, Craig
Description: The EW0412 expedition was part of NicStrat, a project designed to image Neogene depositional sequences indicative of sea-level change and stratal geometries that may reflect local tectonic history. The primary objectives were 1) to test the hypothesis that the stratigraphic records of eustatic and tectonic processes can be identified and distinguished on high-resolution MCS data from the Sandino forearc basin, on the Pacific margin of Nicaragua; and 2) to evaluate the record of tectonic events in the form of local unconformities and/or tectonically controlled variations in the geometries and stacking patterns of regional eustatic sequences. Funding was provided by NSF grant OCE-0241179.
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Processed multichannel seismic data across the Chicxulub impact structure on the Yucatan Peninsula, Mexico, acquired during the R/V Maurice Ewing survey EW0501 (2005)
Author(s): Gulick, Sean
Description: This combined reflection-refraction seismic experiment was a joint project between UTIG, University of Arizona, Imperial College (UK), Cambridge University (UK), UNAM (Mexico), and CICY (Mexico). The goals were: 1) to determine the direction of approach and angle of the Chicxulub impact as modeling has shown that a 15-20 time greater amount of airborne particles are produced by low-angle impacts; 2) to map the deformation (faults and broken rock) recorded in the upper crust near the crater center that may explain the way the surface of the Earth is damaged by large meteor or comet impacts; 3) to image the key features in the northwest portion of the crater to enable better understanding of the Chicxulub impact structure and prepare for possible future sampling to examine the melted and shattered rocks deep within the crater; 4) to model the 3-D collapse of the crater to examine both the deformation and the environmental effects of the impact to better understand how such an impact can cause worldwide mass extinctions. Funded by NSF grants OCE02-21101 and OCE02-20474, the Natural Environment Research Council, UK, and the Universidad Nacional Autonoma de Mexico. DOI: 10.1594/IEDA/500106
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Processed multichannel seismic data across the Chicxulub impact structure on the Yucatan Peninsula, Mexico, acquired during the R/V Maurice Ewing survey EW0501 (2005)
Author(s): Gulick, Sean
Description: This combined reflection-refraction seismic experiment was a joint project between UTIG, University of Arizona, Imperial College (UK), Cambridge University (UK), UNAM (Mexico), and CICY (Mexico). The goals were: 1) to determine the direction of approach and angle of the Chicxulub impact as modeling has shown that a 15-20 time greater amount of airborne particles are produced by low-angle impacts; 2) to map the deformation (faults and broken rock) recorded in the upper crust near the crater center that may explain the way the surface of the Earth is damaged by large meteor or comet impacts; 3) to image the key features in the northwest portion of the crater to enable better understanding of the Chicxulub impact structure and prepare for possible future sampling to examine the melted and shattered rocks deep within the crater; 4) to model the 3-D collapse of the crater to examine both the deformation and the environmental effects of the impact to better understand how such an impact can cause worldwide mass extinctions. Funded by NSF grants OCE02-21101 and OCE02-20474, the Natural Environment Research Council, UK, and the Universidad Nacional Autonoma de Mexico.
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Processed multichannel seismic data across the Chicxulub impact structure on the Yucatan Peninsula, Mexico, acquired during the R/V Maurice Ewing survey EW0501 (2005)
Author(s): Gulick, Sean
Description: This combined reflection-refraction seismic experiment was a joint project between UTIG, University of Arizona, Imperial College (UK), Cambridge University (UK), UNAM (Mexico), and CICY (Mexico). The goals were: 1) to determine the direction of approach and angle of the Chicxulub impact as modeling has shown that a 15-20 time greater amount of airborne particles are produced by low-angle impacts; 2) to map the deformation (faults and broken rock) recorded in the upper crust near the crater center that may explain the way the surface of the Earth is damaged by large meteor or comet impacts; 3) to image the key features in the northwest portion of the crater to enable better understanding of the Chicxulub impact structure and prepare for possible future sampling to examine the melted and shattered rocks deep within the crater; 4) to model the 3-D collapse of the crater to examine both the deformation and the environmental effects of the impact to better understand how such an impact can cause worldwide mass extinctions. Funded by NSF grants OCE02-21101 and OCE02-20474, the Natural Environment Research Council, UK, and the Universidad Nacional Autonoma de Mexico.
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Processed multichannel seismic data on the Mid-Atlantic Margin off New Jersey, acquired during the R/V Maurice Ewing survey EW9009 (1990)
Author(s): Alsop, Joyce
Description: This project was to provide the data base needed to plan a continental shelf-to-slope drilling program that would define precisely the age of Oligocene to Miocene depositional sequences and test models of sedimentation and relative sea-level changes. The objective was to determine the geometry and age of Oligocene to Miocene depositional sequences and to evaluate the role of relative sea-level changes in developing this record. Funded by NSF grant OCE8911810. DOI: 10.1594/IEDA/500107
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Processed multichannel seismic data on the Mid-Atlantic Margin off New Jersey, acquired during the R/V Maurice Ewing survey EW9009 (1990)
Author(s): Alsop, Joyce
Description: This project was to provide the data base needed to plan a continental shelf-to-slope drilling program that would define precisely the age of Oligocene to Miocene depositional sequences and test models of sedimentation and relative sea-level changes. The objective was to determine the geometry and age of Oligocene to Miocene depositional sequences and to evaluate the role of relative sea-level changes in developing this record. Funded by NSF grant OCE8911810.
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Processed multichannel seismic data on the Mid-Atlantic Margin off New Jersey, acquired during the R/V Maurice Ewing survey EW9009 (1990)
Author(s): Alsop, Joyce
Description: This project was to provide the data base needed to plan a continental shelf-to-slope drilling program that would define precisely the age of Oligocene to Miocene depositional sequences and test models of sedimentation and relative sea-level changes. The objective was to determine the geometry and age of Oligocene to Miocene depositional sequences and to evaluate the role of relative sea-level changes in developing this record. Funded by NSF grant OCE8911810.
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Processed multichannel seismic data across the in the Bransfield Strait and Shetland Trench, northern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Austin, James
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436. DOI: 10.1594/IEDA/500108
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Processed multichannel seismic data across the in the Bransfield Strait and Shetland Trench, northern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Austin, James
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436.
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Processed multichannel seismic data across the in the Bransfield Strait and Shetland Trench, northern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Austin, James
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436.
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Processed multichannel seismic data across the southern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Alsop, Joyce
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436. DOI: 10.1594/IEDA/500109
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Processed multichannel seismic data across the southern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Alsop, Joyce
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436.
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Processed multichannel seismic data across the southern Antarctic Peninsula, acquired during the R/V Maurice Ewing survey EW9101 (1991)
Author(s): Alsop, Joyce
Description: This was a joint UT and Lamont-Doherty Earth Observatory program collecting a series of MCS lines in the Bransfield Strait, across the South Shetland Trench and farther south along the Antarctic margin. UTIG was responsible for the Bransfield Strait and South Shetland Trench data. Additional lines collected farther south along the margin were the responsibility of Lamont-Doherty Earth Observatory. The goals were to increase understanding of the following processes: Andean-type orogenesis, continental lithosphere extension in a convergent continental margin setting, ridge crest subduction, and interaction of large- offset fracture zones with convergent margins, including the uplift of subduction complexes. Funded by NSF grants OCE89-17332 and OCE89-16436.
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Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Alsop, Joyce
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899. DOI: 10.1594/IEDA/500112
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Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Alsop, Joyce
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899.
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Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Alsop, Joyce
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899.
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Processed multichannel seismic data at 14 degrees 15'S along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Kent, Graham
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899. DOI: 10.1594/IEDA/500111
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Processed multichannel seismic data at 14 degrees 15'S along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Kent, Graham
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899.
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Processed multichannel seismic data at 14 degrees 15'S along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)
Author(s): Kent, Graham
Description: This Two-ship Experiment on a Ridge Axis (TERA) provided the first detailed geophysical constraints on the crustal structure along the East Pacific Rise south of the Garrett fracture zone, a major focus of the RIDGE initiative. The R/V Maurice Ewing< and Thomas Washington (TERA01WT) were to collect three types of data: (1) 20 closely-space, single-ship multichannel seismic reflection profiles along the EPR; (2) 25 two-ship expanding spread profiles along and parallel to the rise axis in this same area; and (3) a 700-km-long multichanel seismic reflection profile along the EPR from the Garrett fracture zone to the large overlapping spreading center at 20.5S. The objectives were to use these data to test the spreading rate dependence of magma chamber size; to examine the relationship between crustal magma chambers and along-axis changes in morphology, segmentation and basalt geochemistry; and to resolve better how the first-order seismic structure of oceanic crust, including Moho and seismic layer 3, developed during the first few hundred thousand years after crustal formation. Funded by NSF grants OCE90-12707, OCE90-12781, OCE90-12596, and OCE91-02899.
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Processed multichannel seismic data across the Marquesas and Society Islands hotspot chains in the south-central Pacific, acquired during the R/V Maurice Ewing survey EW9103 (1991)
Author(s): Alsop, Joyce
Description: The goal of this project was to image the deep structure beneath two hotspot chains in the south-central Pacific: the Marquesas and Society Islands. The initial expedition shot a series of multichannel seismic reflection lines across the volcanic chains with initial velocity information supplied by sonobuoys. The data were supplemented during a later expedition by refraction information using airguns and ocean bottom seismometers. Funded by NSF grant OCE8817764. DOI: 10.1594/IEDA/500113
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Processed multichannel seismic data across the Marquesas and Society Islands hotspot chains in the south-central Pacific, acquired during the R/V Maurice Ewing survey EW9103 (1991)
Author(s): Alsop, Joyce
Description: The goal of this project was to image the deep structure beneath two hotspot chains in the south-central Pacific: the Marquesas and Society Islands. The initial expedition shot a series of multichannel seismic reflection lines across the volcanic chains with initial velocity information supplied by sonobuoys. The data were supplemented during a later expedition by refraction information using airguns and ocean bottom seismometers. Funded by NSF grant OCE8817764.
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Processed multichannel seismic data across the Marquesas and Society Islands hotspot chains in the south-central Pacific, acquired during the R/V Maurice Ewing survey EW9103 (1991)
Author(s): Alsop, Joyce
Description: The goal of this project was to image the deep structure beneath two hotspot chains in the south-central Pacific: the Marquesas and Society Islands. The initial expedition shot a series of multichannel seismic reflection lines across the volcanic chains with initial velocity information supplied by sonobuoys. The data were supplemented during a later expedition by refraction information using airguns and ocean bottom seismometers. Funded by NSF grant OCE8817764.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Fang, Jiasong; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671. DOI: 10.1594/IEDA/500114
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Fang, Jiasong; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Fang, Jiasong; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Reprocessed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, acquired in 1992 during the R/V Marcus Ewing survey EW9203
Author(s): Fitz, Guy; Mann, Paul
Description: These data were reprocessed in order to provide new constraints on the uplift and exhumation of Goodenough and Fergusson islands. This work was supported by the NSF Continental Dynamics program (EAR-0708105). DOI: 10.1594/IEDA/500074
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Reprocessed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, acquired in 1992 during the R/V Marcus Ewing survey EW9203
Author(s): Fitz, Guy; Mann, Paul
Description: These data were reprocessed in order to provide new constraints on the uplift and exhumation of Goodenough and Fergusson islands. This work was supported by the NSF Continental Dynamics program (EAR-0708105).
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Reprocessed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, acquired in 1992 during the R/V Marcus Ewing survey EW9203
Author(s): Fitz, Guy; Mann, Paul
Description: These data were reprocessed in order to provide new constraints on the uplift and exhumation of Goodenough and Fergusson islands. This work was supported by the NSF Continental Dynamics program (EAR-0708105).
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Mutter, John; Diebold, John
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671. DOI: 10.1594/IEDA/500114
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Mutter, John; Diebold, John
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Mutter, John; Diebold, John
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Hayes, Jorden; Goodliffe, Andrew
Description: This data set includes EW9203 MCS lines from the Goodenough and Woodlark basins. Funded by NSF grant OCE05-25671, the lines were reprocessed as part of a study on understanding the structure of the ocean ridge segmentation, the interplay of magmatism and faulting and the history of spreading center subduction. Original data collection was funded by NSF grant OCE90-12730 to J. Mutter, G. Lister, G. Abers, C. Mutter, and J. Diebold. DOI: 10.1594/IEDA/500115
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Hayes, Jorden; Goodliffe, Andrew
Description: This data set includes EW9203 MCS lines from the Goodenough and Woodlark basins. Funded by NSF grant OCE05-25671, the lines were reprocessed as part of a study on understanding the structure of the ocean ridge segmentation, the interplay of magmatism and faulting and the history of spreading center subduction. Original data collection was funded by NSF grant OCE90-12730 to J. Mutter, G. Lister, G. Abers, C. Mutter, and J. Diebold.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Hayes, Jorden; Goodliffe, Andrew
Description: This data set includes EW9203 MCS lines from the Goodenough and Woodlark basins. Funded by NSF grant OCE05-25671, the lines were reprocessed as part of a study on understanding the structure of the ocean ridge segmentation, the interplay of magmatism and faulting and the history of spreading center subduction. Original data collection was funded by NSF grant OCE90-12730 to J. Mutter, G. Lister, G. Abers, C. Mutter, and J. Diebold.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Floyd, Jacqueline; Mutter, John; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671. DOI: 10.1594/IEDA/500114
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Floyd, Jacqueline; Mutter, John; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Processed multichannel seismic data in the Woodlark Basin and D'Entrecasteaux Islands region, off Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9203 (1992)
Author(s): Floyd, Jacqueline; Mutter, John; Alsop, Joyce
Description: This was a study of the extensional mechanisms in the Woodlark basin where westward propagation of seafloor spreading is accompanied by active continental extension in the D'Entrecasteaux islands and flanking basins immediately landward of the propagator. The overall objective was to investigate continental breakup and initiation of seafloor spreading in a region where it is presently active. The aims of the project were to determine: (1) whether intra-continental extension is occurring along low-angle detachment faults or normal faults, (2) whether seismogenic faults can be correlated with faults observed in the seismic sections, (3) the whole crustal geometry of structures that bound the core complexed of Goodenough and Fergusson islands, and (4) whether the transition from intra-continental extension through to continental breadup reflect an evolution of extensional mechanisms. Data collection was funded by NSF grant OCE90-12730. Processing of this data set was funded by NSF OCE 0525671.
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Processed 3D multichannel seismic data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336. DOI: 10.1594/IEDA/500117
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Processed 3D multichannel seismic data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336.
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Processed 3D multichannel seismic data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336.
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Ocean bottom seismometer (OBS) data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336. DOI: 10.1594/IEDA/500116
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Ocean bottom seismometer (OBS) data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336.
View Data >

Ocean bottom seismometer (OBS) data in the Barbados subduction system, acquired during the R/V Maurice Ewing survey EW9207 (1992)
Author(s): Shipley, Thomas
Description: The Barbados 3-D Survey was a UTIG-led collaborative study with the University of Hawaii and University of California Santa Cruz. They collected 102 parallel seismic lines, 3 OBS stations and one long regional dip line. The purpose was to examine fluid distribution within the shallow parts of the Barbados subduction system and provide context for previous drilling results. Funding was provided by NSF grants OCE91-16172 and OCE91-19336.
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Processed 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic, acquired during the R/V Maurice Ewing survey EW9209 (1992)
Author(s): Alsop, Joyce
Description: This 1992 Ewing survey collected 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic. A site survey for ODP Leg 154, the purpose was to acquire seismic data and core samples from the Ceara Rise in the western equatorial Atlantic. Funded by NSF grants OCE91-16303 and OCE91-16500. DOI: 10.1594/IEDA/500118
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Processed 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic, acquired during the R/V Maurice Ewing survey EW9209 (1992)
Author(s): Alsop, Joyce
Description: This 1992 Ewing survey collected 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic. A site survey for ODP Leg 154, the purpose was to acquire seismic data and core samples from the Ceara Rise in the western equatorial Atlantic. Funded by NSF grants OCE91-16303 and OCE91-16500.
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Processed 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic, acquired during the R/V Maurice Ewing survey EW9209 (1992)
Author(s): Alsop, Joyce
Description: This 1992 Ewing survey collected 4-channel seismic data on the Ceara Rise in the western equatorial Atlantic. A site survey for ODP Leg 154, the purpose was to acquire seismic data and core samples from the Ceara Rise in the western equatorial Atlantic. Funded by NSF grants OCE91-16303 and OCE91-16500.
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Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)
Author(s): Alsop, Joyce
Description: This 1993 R/V Ewing cruise was an ODP Site Survey of Rockall Plateau and East Flank of Reykjanes Ridge. The objectives including conducting a high-resolution seismic reflection/refraction survey of high-sedimentation-rate drift areas in the North Atlantic south of Iceland. Funded by NSF grants OCE92-18673 and OCE92-17921. DOI: 10.1594/IEDA/500119
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Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)
Author(s): Alsop, Joyce
Description: This 1993 R/V Ewing cruise was an ODP Site Survey of Rockall Plateau and East Flank of Reykjanes Ridge. The objectives including conducting a high-resolution seismic reflection/refraction survey of high-sedimentation-rate drift areas in the North Atlantic south of Iceland. Funded by NSF grants OCE92-18673 and OCE92-17921.
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Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)
Author(s): Alsop, Joyce
Description: This 1993 R/V Ewing cruise was an ODP Site Survey of Rockall Plateau and East Flank of Reykjanes Ridge. The objectives including conducting a high-resolution seismic reflection/refraction survey of high-sedimentation-rate drift areas in the North Atlantic south of Iceland. Funded by NSF grants OCE92-18673 and OCE92-17921.
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Processed multichannel seismic data along the Aleutian arc and the extensive Alaskina continental shelf, acquired during the R/V Maurice Ewing survey EW9409 (1994)
Author(s): Alsop, Joyce
Description: The experiment was a collaborative effort between the University of Delaware, LDEO, UTIG, WHOI, Stanford University, and the USGS. The purpose of this multichannel seismic reflection survey of the Aleutian arc and the extensive Alaskina continental shelf was to obtain high-quality data that could be used to image the deep structure of the crust and uppermost mantle which, when combined with the well-mapped onshore geology, should allow the principal investigators to constrain the mechanisms of accretion and magmatism. Funded by NSF grants OCE94-12683, OCE94-12684, and OCE94-11541. DOI: 10.1594/IEDA/500120
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Processed multichannel seismic data along the Aleutian arc and the extensive Alaskina continental shelf, acquired during the R/V Maurice Ewing survey EW9409 (1994)
Author(s): Alsop, Joyce
Description: The experiment was a collaborative effort between the University of Delaware, LDEO, UTIG, WHOI, Stanford University, and the USGS. The purpose of this multichannel seismic reflection survey of the Aleutian arc and the extensive Alaskina continental shelf was to obtain high-quality data that could be used to image the deep structure of the crust and uppermost mantle which, when combined with the well-mapped onshore geology, should allow the principal investigators to constrain the mechanisms of accretion and magmatism. Funded by NSF grants OCE94-12683, OCE94-12684, and OCE94-11541.
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Processed multichannel seismic data along the Aleutian arc and the extensive Alaskina continental shelf, acquired during the R/V Maurice Ewing survey EW9409 (1994)
Author(s): Alsop, Joyce
Description: The experiment was a collaborative effort between the University of Delaware, LDEO, UTIG, WHOI, Stanford University, and the USGS. The purpose of this multichannel seismic reflection survey of the Aleutian arc and the extensive Alaskina continental shelf was to obtain high-quality data that could be used to image the deep structure of the crust and uppermost mantle which, when combined with the well-mapped onshore geology, should allow the principal investigators to constrain the mechanisms of accretion and magmatism. Funded by NSF grants OCE94-12683, OCE94-12684, and OCE94-11541.
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Processed multichannel seismic data in the Bering and Chukchi seas off Alaska, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Klemperer, Simon
Description: Stanford University, in conjunction with the U.S. Geological Survey, and with participation by the Institute of the Lithosphere and the Institute of the Russian Academy of Sciences, and the Geodynamics Research Institute of Texas A and M University, conducted deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas, Alaska, during the month of August, 1994. The data was recorded to two-way travel-times of 15 to 23 seconds, with 50-75 m shot spacing. Two north-south transects were profiled. The eastern transect extended from 58 degrees 50'N, 168 degrees 32'W, well within the continental shelf of the Bering Sea, north of the Pribilof Islands, to just south of the shelf edge north of Barrow, Alaska, at 71 degrees 49'N, 154 degrees 33'W. Ice prevented continuation of the line beyond the shelf edge. The western transect extended from the central Chukchi Sea, well within the shelf at 71 degrees 23'N, 163 degrees 00'W, into the Aleutian basin at 58 degrees 00'N, 178 degrees 30'W, near Navarinsky Canyon. An additional short line crossing over the Beringian margin a second time was recorded near Zemchung Canyon east of the western transect. The profiles cross important strike-slip faults, possible terrane boundaries, two continental margins, and several Cretaceous/Tertiary sedimentary basins (Norton, Hope, Chukchi, and Navarin Basins). Together with the preceding cruise EW9409, the profiles provide a continuous transect across the North American continent, from the Pacific to Arctic Ocean. Most of the multi-channel (MCS) data is of high quality, but bad weather, strong currents, and recording problems sometimes presented difficulties during data acquisition. Gravity, magnetic, and sonobuoy data were also recorded along the profiles. Wide-angle recording was done in conjunction with the seismic profiling, at recording sites located along the central west coast of Alaska and the Chukchi Peninsula, as well as on islands in the Bering Strait and Bering Sea. The purpose was to conduct deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas. Funded by NSF grant OCE93-17087. DOI: 10.1594/IEDA/500121
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Processed multichannel seismic data in the Bering and Chukchi seas off Alaska, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Klemperer, Simon
Description: Stanford University, in conjunction with the U.S. Geological Survey, and with participation by the Institute of the Lithosphere and the Institute of the Russian Academy of Sciences, and the Geodynamics Research Institute of Texas A and M University, conducted deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas, Alaska, during the month of August, 1994. The data was recorded to two-way travel-times of 15 to 23 seconds, with 50-75 m shot spacing. Two north-south transects were profiled. The eastern transect extended from 58 degrees 50'N, 168 degrees 32'W, well within the continental shelf of the Bering Sea, north of the Pribilof Islands, to just south of the shelf edge north of Barrow, Alaska, at 71 degrees 49'N, 154 degrees 33'W. Ice prevented continuation of the line beyond the shelf edge. The western transect extended from the central Chukchi Sea, well within the shelf at 71 degrees 23'N, 163 degrees 00'W, into the Aleutian basin at 58 degrees 00'N, 178 degrees 30'W, near Navarinsky Canyon. An additional short line crossing over the Beringian margin a second time was recorded near Zemchung Canyon east of the western transect. The profiles cross important strike-slip faults, possible terrane boundaries, two continental margins, and several Cretaceous/Tertiary sedimentary basins (Norton, Hope, Chukchi, and Navarin Basins). Together with the preceding cruise EW9409, the profiles provide a continuous transect across the North American continent, from the Pacific to Arctic Ocean. Most of the multi-channel (MCS) data is of high quality, but bad weather, strong currents, and recording problems sometimes presented difficulties during data acquisition. Gravity, magnetic, and sonobuoy data were also recorded along the profiles. Wide-angle recording was done in conjunction with the seismic profiling, at recording sites located along the central west coast of Alaska and the Chukchi Peninsula, as well as on islands in the Bering Strait and Bering Sea. The purpose was to conduct deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas. Funded by NSF grant OCE93-17087.
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Processed multichannel seismic data in the Bering and Chukchi seas off Alaska, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Klemperer, Simon
Description: Stanford University, in conjunction with the U.S. Geological Survey, and with participation by the Institute of the Lithosphere and the Institute of the Russian Academy of Sciences, and the Geodynamics Research Institute of Texas A and M University, conducted deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas, Alaska, during the month of August, 1994. The data was recorded to two-way travel-times of 15 to 23 seconds, with 50-75 m shot spacing. Two north-south transects were profiled. The eastern transect extended from 58 degrees 50'N, 168 degrees 32'W, well within the continental shelf of the Bering Sea, north of the Pribilof Islands, to just south of the shelf edge north of Barrow, Alaska, at 71 degrees 49'N, 154 degrees 33'W. Ice prevented continuation of the line beyond the shelf edge. The western transect extended from the central Chukchi Sea, well within the shelf at 71 degrees 23'N, 163 degrees 00'W, into the Aleutian basin at 58 degrees 00'N, 178 degrees 30'W, near Navarinsky Canyon. An additional short line crossing over the Beringian margin a second time was recorded near Zemchung Canyon east of the western transect. The profiles cross important strike-slip faults, possible terrane boundaries, two continental margins, and several Cretaceous/Tertiary sedimentary basins (Norton, Hope, Chukchi, and Navarin Basins). Together with the preceding cruise EW9409, the profiles provide a continuous transect across the North American continent, from the Pacific to Arctic Ocean. Most of the multi-channel (MCS) data is of high quality, but bad weather, strong currents, and recording problems sometimes presented difficulties during data acquisition. Gravity, magnetic, and sonobuoy data were also recorded along the profiles. Wide-angle recording was done in conjunction with the seismic profiling, at recording sites located along the central west coast of Alaska and the Chukchi Peninsula, as well as on islands in the Bering Strait and Bering Sea. The purpose was to conduct deep seismic investigations of the continental crust beneath the Bering and Chukchi Seas. Funded by NSF grant OCE93-17087.
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Processed multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Trehu, Anne
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Support for analysis of this data set was provided by NSF grants EAR-9219870 and EAR-9527011. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold. DOI: 10.1594/IEDA/500122
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Processed multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Trehu, Anne
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Support for analysis of this data set was provided by NSF grants EAR-9219870 and EAR-9527011. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold.
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Processed multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Trehu, Anne
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Support for analysis of this data set was provided by NSF grants EAR-9219870 and EAR-9527011. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold.
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Reprocessed, prestack migrated, multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Walton, Maureen
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Line 1250 was processed to prestack time migration. Funding for reprocessing of this data set was partly provided USGS Earthquake Hazards External Grants Program, the National Earthquake Hazards Reduction Program, and the UTIG Ewing/Worzel Fellowship. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold. DOI: 10.1594/IEDA/500123
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Reprocessed, prestack migrated, multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Walton, Maureen
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Line 1250 was processed to prestack time migration. Funding for reprocessing of this data set was partly provided USGS Earthquake Hazards External Grants Program, the National Earthquake Hazards Reduction Program, and the UTIG Ewing/Worzel Fellowship. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold.
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Reprocessed, prestack migrated, multichannel seismic data crossing the central Queen Charlotte Fault, acquired during the R/V Maurice Ewing survey EW9412 (1994)
Author(s): Walton, Maureen
Description: These multichannel seismic data were collected during the 1994 R/V Ewing survey off southeast Alaska and British Columbia as part of the ACCRETE project. Line 1250 was processed to prestack time migration. Funding for reprocessing of this data set was partly provided USGS Earthquake Hazards External Grants Program, the National Earthquake Hazards Reduction Program, and the UTIG Ewing/Worzel Fellowship. Original data collection was funded by NSF grant EAR-9219002 to J. Diebold.
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Processed multichannel seismic data across the Gorda Ridge, Northeast Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Alsop, Joyce
Description: R/V Ewing cruise EW9413 featured a single MCS transect across the Gorda Ridge, from crustal age 17 my west of the ridge to zero and on to 6 my in the east. MCS data were recorded with a 4 km long 160 channel digital streamer. The purpose was to investigate Layer 2A properties and how they change with age at an intermediate spreading-rate ridge. Funded by the Office of Naval Research (U.S.). DOI: 10.1594/IEDA/500124
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Processed multichannel seismic data across the Gorda Ridge, Northeast Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Alsop, Joyce
Description: R/V Ewing cruise EW9413 featured a single MCS transect across the Gorda Ridge, from crustal age 17 my west of the ridge to zero and on to 6 my in the east. MCS data were recorded with a 4 km long 160 channel digital streamer. The purpose was to investigate Layer 2A properties and how they change with age at an intermediate spreading-rate ridge. Funded by the Office of Naval Research (U.S.).
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Processed multichannel seismic data across the Gorda Ridge, Northeast Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9410 (1994)
Author(s): Alsop, Joyce
Description: R/V Ewing cruise EW9413 featured a single MCS transect across the Gorda Ridge, from crustal age 17 my west of the ridge to zero and on to 6 my in the east. MCS data were recorded with a 4 km long 160 channel digital streamer. The purpose was to investigate Layer 2A properties and how they change with age at an intermediate spreading-rate ridge. Funded by the Office of Naval Research (U.S.).
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Processed multichannel seismic data in the Inner California Borderland, acquired during the R/V Maurice Ewing survey EW9415 (1994) as part of the Los Angeles Region Seismic Experiment (LARSE)
Author(s): Okaya, David
Description: Part of the Los Angeles Region Seismic Experiment (LARSE), this study acquired deep-crustal multichannel seismic-reflection data in the Inner California Borderland, collecting approximately 1250 km of 40-fold MCS reflection data. The results of this study were to be combined with reprocessed industry seismic reflection data from the San Fernando Valley to provide information on the subsurface structure of the Santa Monica Mountain-Elysian Park thrust ramp and the Northridge earthquake fault system as will as the San Fernando Basin and its underlying crust. Funded by NSF grants EAR-9416773 and EAR-9416774 DOI: 10.1594/IEDA/500125
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Processed multichannel seismic data in the Inner California Borderland, acquired during the R/V Maurice Ewing survey EW9415 (1994) as part of the Los Angeles Region Seismic Experiment (LARSE)
Author(s): Okaya, David
Description: Part of the Los Angeles Region Seismic Experiment (LARSE), this study acquired deep-crustal multichannel seismic-reflection data in the Inner California Borderland, collecting approximately 1250 km of 40-fold MCS reflection data. The results of this study were to be combined with reprocessed industry seismic reflection data from the San Fernando Valley to provide information on the subsurface structure of the Santa Monica Mountain-Elysian Park thrust ramp and the Northridge earthquake fault system as will as the San Fernando Basin and its underlying crust. Funded by NSF grants EAR-9416773 and EAR-9416774
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Processed multichannel seismic data in the Inner California Borderland, acquired during the R/V Maurice Ewing survey EW9415 (1994) as part of the Los Angeles Region Seismic Experiment (LARSE)
Author(s): Okaya, David
Description: Part of the Los Angeles Region Seismic Experiment (LARSE), this study acquired deep-crustal multichannel seismic-reflection data in the Inner California Borderland, collecting approximately 1250 km of 40-fold MCS reflection data. The results of this study were to be combined with reprocessed industry seismic reflection data from the San Fernando Valley to provide information on the subsurface structure of the Santa Monica Mountain-Elysian Park thrust ramp and the Northridge earthquake fault system as will as the San Fernando Basin and its underlying crust. Funded by NSF grants EAR-9416773 and EAR-9416774
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Reprocessed multichannel seismic data across ODP Site 504B in the eastern Pacific Ocean, acquired in 1994 during the R/V Marcus Ewing survey EW9416
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 504B to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program. DOI: 10.1594/IEDA/500070
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Reprocessed multichannel seismic data across ODP Site 504B in the eastern Pacific Ocean, acquired in 1994 during the R/V Marcus Ewing survey EW9416
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 504B to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program.
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Reprocessed multichannel seismic data across ODP Site 504B in the eastern Pacific Ocean, acquired in 1994 during the R/V Marcus Ewing survey EW9416
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 504B to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program.
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Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635. DOI: 10.1594/IEDA/500126
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Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635.
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Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635.
View Data >

Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre; Abrams, Lew
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635. DOI: 10.1594/IEDA/500126
View Data >

Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre; Abrams, Lew
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635.
View Data >

Processed multichannel seismic data on the Cayman Ridge and Nicaragua Rise, acquired during the R/V Maurice Ewing survey EW9417 (1994)
Author(s): Droxler, Andre; Abrams, Lew
Description: This 1994 cruise across the Caribbean Sea connected three previous study sites by a network of high-resolution seismic profiles. Dredging of exposed outcrops and piston coring were to provide samples of the older substrata. It served as an ODP site survey for Sites 998 and 1001. The goals were to obtain data on the Caribbean Current for preparation of an ODP drilling program proposal. Funded by NSF grants OCE91-16323 and OCE92-12635.
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Processed multichannel seismic data in Mona Canyon, northeast of Puerto Rico, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Grindlay, Nancy
Description: These data were collected in Mona Canyon, northeast of Puerto Rico during the R/V Maurice Ewing survey EW9501 (1995). Processing steps included 1) spherical divergence correction, 2) deconvolution, 3) CMP sort and normal moveout, 4) final stack using stacking velocities, and 5) stolt migration. Data analysis was funded by NSF grants OCE97-96189 and OCE95-04118, University of Puerto Rico SeaGrant Program (R-122-1-04), the UNCW Center for Marine Science, and the UNCW Geography and Geology Department. Original data collection was funded by NSF grant OCE93-02578 to J. Diebold and N. Driscoll. DOI: 10.1594/IEDA/500128
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Processed multichannel seismic data in Mona Canyon, northeast of Puerto Rico, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Grindlay, Nancy
Description: These data were collected in Mona Canyon, northeast of Puerto Rico during the R/V Maurice Ewing survey EW9501 (1995). Processing steps included 1) spherical divergence correction, 2) deconvolution, 3) CMP sort and normal moveout, 4) final stack using stacking velocities, and 5) stolt migration. Data analysis was funded by NSF grants OCE97-96189 and OCE95-04118, University of Puerto Rico SeaGrant Program (R-122-1-04), the UNCW Center for Marine Science, and the UNCW Geography and Geology Department. Original data collection was funded by NSF grant OCE93-02578 to J. Diebold and N. Driscoll.
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Processed multichannel seismic data in Mona Canyon, northeast of Puerto Rico, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Grindlay, Nancy
Description: These data were collected in Mona Canyon, northeast of Puerto Rico during the R/V Maurice Ewing survey EW9501 (1995). Processing steps included 1) spherical divergence correction, 2) deconvolution, 3) CMP sort and normal moveout, 4) final stack using stacking velocities, and 5) stolt migration. Data analysis was funded by NSF grants OCE97-96189 and OCE95-04118, University of Puerto Rico SeaGrant Program (R-122-1-04), the UNCW Center for Marine Science, and the UNCW Geography and Geology Department. Original data collection was funded by NSF grant OCE93-02578 to J. Diebold and N. Driscoll.
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Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578. DOI: 10.1594/IEDA/500127
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Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578.
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Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Diebold, John; Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578. DOI: 10.1594/IEDA/500127
View Data >

Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Diebold, John; Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578.
View Data >

Processed multichannel seismic data in the Venezuelan Basin and over the Beata Ridge, acquired during the R/V Maurice Ewing survey EW9501 (1995)
Author(s): Diebold, John; Alsop, Joyce
Description: This cruise collected data in the Venezuelan Basin and over the Beata Ridge. The cruise had multiple purposes. Venezuela Basin: 1) Define the rough/smooth basement boundary better and examine the spatial and temporal relationship between the different crustal types. 2) Ascertain the crustal velocity structure. 3) Determine crustal thickness variations acrooss the rough/smooth boundary. 4) Image Moho, sub B, and Cretaceous to early Tertiary sediment reflectors. 5) Examine the link between the observed magnetic lineations and structural lineations. Beata Ridge: 1) Determine if crustal thickness variations can explain the differential topography between Beata Ridge and the Venezuelan and Columbian Basins. 2) Determine if additional deformation affected the region due to differential plate motion. 3) Ascertain whether the additional deformation and the resulting topography was due to tensional or compressional forces. 4) Address the history of the relative motion of the Caribbean plate and discern whether the azimuthal and deformation data can be better explained by one or two plates for the Caribbean region by determining the deformational history of the Beata Ridge. Funded by NSF grant OCE93-02578.
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Ocean bottom seismometer data off the Nicoya and Osa peninsulas of Costa Rica, acquired during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): Christeson, Gail
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment. DOI: 10.1594/IEDA/500015
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Ocean bottom seismometer data off the Nicoya and Osa peninsulas of Costa Rica, acquired during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): Christeson, Gail
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment.
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Ocean bottom seismometer data off the Nicoya and Osa peninsulas of Costa Rica, acquired during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): Christeson, Gail
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment.
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Near-trace strip seismic data derived from 2-channel seismic data acquired off the Nicoya and Osa peninsulas of Costa Rica during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): McIntosh, Kirk
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment. DOI: 10.1594/IEDA/500016
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Near-trace strip seismic data derived from 2-channel seismic data acquired off the Nicoya and Osa peninsulas of Costa Rica during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): McIntosh, Kirk
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment.
View Data >

Near-trace strip seismic data derived from 2-channel seismic data acquired off the Nicoya and Osa peninsulas of Costa Rica during R/V Maurice Ewing expedition EW9502 (1995)
Author(s): McIntosh, Kirk
Description: TICOSECT (Trans Isthmus Costa Rica Scientific Exploration of a Crustal Transect), a joint German, Costa Rican and UTIG program, collected seismic refraction data and two-channel reflection data. The objective was to investigate the upper plate response to subducting plate morphology and seamounts as subduction zone asperities. The project was a combined onshore-offshore refraction experiment along three transects (Experiments 1, 2 and 3) and an intense 3-D OBS focus in on the shelf just southeast of the Nicoya Peninsula as part of Experiment 2. Experiment 1 across central Nicoya consisted of dip lines 101 and 102 and strike lines 103, 104 and 105. Twenty OBSs or OBHs were deployed here. Onshore a 3.6 km cable was deployed and 30 PDAS-100 seismographs extended up to 140 km from the coast. Experiment 2 just southeast of the Nicoya Peninsula consists of 37 dip lines, 301-237, and 5 strike lines, 238-242. Thirty OBSs or OBHs were deployed with a separation of 5 km by 1 km and 3 additional OBSs were deployed on extended lines. Experiment 3 was just northwest of the Osa Peninsula consisting of dip lines 301 and 302, and two strike lines, 303 and 304. A total of 26 instruments were deployed on this experiment.
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Processed 4-channel seismic data in the region of the California Current system offshore California, acquired during the R/V Maurice Ewing survey EW9504 (1995)
Author(s): Lyle, Mitchell
Description: This marine geological and geophysical study of the California Current system was a cooperative project between scientists at Boise State University and the University of Southern California. Serving as an ODP site survey, EW9504 collected 4-channel seismic. The main objectives were to acquire an extensive base of seismic reflection data and a suite of large diameter piston cores and to use this new data to examine changes in the current system over the last glacial cycle. Funded by NSF grants OCE93-15085 and OCE93-14512. DOI: 10.1594/IEDA/500139
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Processed 4-channel seismic data in the region of the California Current system offshore California, acquired during the R/V Maurice Ewing survey EW9504 (1995)
Author(s): Lyle, Mitchell
Description: This marine geological and geophysical study of the California Current system was a cooperative project between scientists at Boise State University and the University of Southern California. Serving as an ODP site survey, EW9504 collected 4-channel seismic. The main objectives were to acquire an extensive base of seismic reflection data and a suite of large diameter piston cores and to use this new data to examine changes in the current system over the last glacial cycle. Funded by NSF grants OCE93-15085 and OCE93-14512.
View Data >

Processed 4-channel seismic data in the region of the California Current system offshore California, acquired during the R/V Maurice Ewing survey EW9504 (1995)
Author(s): Lyle, Mitchell
Description: This marine geological and geophysical study of the California Current system was a cooperative project between scientists at Boise State University and the University of Southern California. Serving as an ODP site survey, EW9504 collected 4-channel seismic. The main objectives were to acquire an extensive base of seismic reflection data and a suite of large diameter piston cores and to use this new data to examine changes in the current system over the last glacial cycle. Funded by NSF grants OCE93-15085 and OCE93-14512.
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Processed multichannel seismic data collected off Taiwan, acquired during the R/V Maurice Ewing survey EW9509 (1995)
Author(s): Schnurle, Phillippe
Description: This cooperative project was supported by scientists at four U.S. institutions and the Institute of Oceanography of the National Taiwan University. The project used the R/V Maurice Ewing to shoot and collect seismic reflection data and the R/V Ocean Researcher I (ORI429) to shoot and collect six deep refaction lines. The purpose was to obtain detailed new information with which to examine Taiwan crustal structure and the collision process. Funded by NSF grants OCE94-16583, OCE94-17415, OCE94-17411, OCE94-17414, OCE95-13945. DOI: 10.1594/IEDA/500138
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Processed multichannel seismic data collected off Taiwan, acquired during the R/V Maurice Ewing survey EW9509 (1995)
Author(s): Schnurle, Phillippe
Description: This cooperative project was supported by scientists at four U.S. institutions and the Institute of Oceanography of the National Taiwan University. The project used the R/V Maurice Ewing to shoot and collect seismic reflection data and the R/V Ocean Researcher I (ORI429) to shoot and collect six deep refaction lines. The purpose was to obtain detailed new information with which to examine Taiwan crustal structure and the collision process. Funded by NSF grants OCE94-16583, OCE94-17415, OCE94-17411, OCE94-17414, OCE95-13945.
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Processed multichannel seismic data collected off Taiwan, acquired during the R/V Maurice Ewing survey EW9509 (1995)
Author(s): Schnurle, Phillippe
Description: This cooperative project was supported by scientists at four U.S. institutions and the Institute of Oceanography of the National Taiwan University. The project used the R/V Maurice Ewing to shoot and collect seismic reflection data and the R/V Ocean Researcher I (ORI429) to shoot and collect six deep refaction lines. The purpose was to obtain detailed new information with which to examine Taiwan crustal structure and the collision process. Funded by NSF grants OCE94-16583, OCE94-17415, OCE94-17411, OCE94-17414, OCE95-13945.
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Processed multichannel seismic data in the Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9510 (1995)
Author(s): Moore, Gregory
Description: This was an ODP site survey (prior to leg 180) to characterize the rift-to-spreading transition in the Woodlark Basin. The purpose was to study the structural and volcanic processes and the dynamics of the upper mantle that are associated with the splitting of continents. The lateral variation from continental rifting to seafloor spreading within the Woodlark Basin makes it an ideal area to investigate the active process of rifting and spreading center propagation into a continent. The results of this study will provide necessary site survey data with which to plan drilling in the Woodlark Basin. Funded by NSF grant OCE92-01691. DOI: 10.1594/IEDA/500140
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Processed multichannel seismic data in the Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9510 (1995)
Author(s): Moore, Gregory
Description: This was an ODP site survey (prior to leg 180) to characterize the rift-to-spreading transition in the Woodlark Basin. The purpose was to study the structural and volcanic processes and the dynamics of the upper mantle that are associated with the splitting of continents. The lateral variation from continental rifting to seafloor spreading within the Woodlark Basin makes it an ideal area to investigate the active process of rifting and spreading center propagation into a continent. The results of this study will provide necessary site survey data with which to plan drilling in the Woodlark Basin. Funded by NSF grant OCE92-01691.
View Data >

Processed multichannel seismic data in the Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9510 (1995)
Author(s): Moore, Gregory
Description: This was an ODP site survey (prior to leg 180) to characterize the rift-to-spreading transition in the Woodlark Basin. The purpose was to study the structural and volcanic processes and the dynamics of the upper mantle that are associated with the splitting of continents. The lateral variation from continental rifting to seafloor spreading within the Woodlark Basin makes it an ideal area to investigate the active process of rifting and spreading center propagation into a continent. The results of this study will provide necessary site survey data with which to plan drilling in the Woodlark Basin. Funded by NSF grant OCE92-01691.
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Processed multichannel seismic data in the Solomon Islands convergent zone, Southwest Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9511 (1995)
Author(s): Mann, Paul
Description: A U.S.-Japan cooperative program to map crustal and perhaps upper mantle structures in the Solomon Islands convergent zone. Due to a major cable loss on the previous cruise the cable configuration varied between 112 and 128 channels as new sections were repaired or on-loaded (see cruise report). Japanese OBS's were used in this experiment along line SI-1. The primary objective of the MCS study and an independently proposed OBS study by Drs. K. Suyehiro and colleagues at the Ocean Research Institute in Tokyo, Japan, is to test two models for the formation of the Malaita anticlinorium - the deformed wedge of Cretaceous-Cenozoic pelagic limestone, basalt, and clastic rocks that most previous workers agree to be an emergent part of the Ontong Java Plateau. One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. A second, alternative model predicts a more familiar oceanic accretionary wedge geometry with northeastward (plateauward) offscraping and thrust imbrication of plateau rocks. Our proposed MCS-OBS study focusing on the Malaita anticlinorium and North Solomon trench will use state-of-the-art data acquisition and processing techniques to address fundamental questions concerning the subduction/accretion/fragmentation of oceanic plateaus at subduction zones and their deformational effects on the overriding island arc-including collision-related arc polarity reversal. Answers to these questions are important for understanding how oceanic plateaus may contribute to growth of continents through time and how subduction zones initiate by polarity reversal. Funded by NSF grant OCE9301608. DOI: 10.1594/IEDA/500141
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Processed multichannel seismic data in the Solomon Islands convergent zone, Southwest Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9511 (1995)
Author(s): Mann, Paul
Description: A U.S.-Japan cooperative program to map crustal and perhaps upper mantle structures in the Solomon Islands convergent zone. Due to a major cable loss on the previous cruise the cable configuration varied between 112 and 128 channels as new sections were repaired or on-loaded (see cruise report). Japanese OBS's were used in this experiment along line SI-1. The primary objective of the MCS study and an independently proposed OBS study by Drs. K. Suyehiro and colleagues at the Ocean Research Institute in Tokyo, Japan, is to test two models for the formation of the Malaita anticlinorium - the deformed wedge of Cretaceous-Cenozoic pelagic limestone, basalt, and clastic rocks that most previous workers agree to be an emergent part of the Ontong Java Plateau. One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. A second, alternative model predicts a more familiar oceanic accretionary wedge geometry with northeastward (plateauward) offscraping and thrust imbrication of plateau rocks. Our proposed MCS-OBS study focusing on the Malaita anticlinorium and North Solomon trench will use state-of-the-art data acquisition and processing techniques to address fundamental questions concerning the subduction/accretion/fragmentation of oceanic plateaus at subduction zones and their deformational effects on the overriding island arc-including collision-related arc polarity reversal. Answers to these questions are important for understanding how oceanic plateaus may contribute to growth of continents through time and how subduction zones initiate by polarity reversal. Funded by NSF grant OCE9301608.
View Data >

Processed multichannel seismic data in the Solomon Islands convergent zone, Southwest Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9511 (1995)
Author(s): Mann, Paul
Description: A U.S.-Japan cooperative program to map crustal and perhaps upper mantle structures in the Solomon Islands convergent zone. Due to a major cable loss on the previous cruise the cable configuration varied between 112 and 128 channels as new sections were repaired or on-loaded (see cruise report). Japanese OBS's were used in this experiment along line SI-1. The primary objective of the MCS study and an independently proposed OBS study by Drs. K. Suyehiro and colleagues at the Ocean Research Institute in Tokyo, Japan, is to test two models for the formation of the Malaita anticlinorium - the deformed wedge of Cretaceous-Cenozoic pelagic limestone, basalt, and clastic rocks that most previous workers agree to be an emergent part of the Ontong Java Plateau. One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. A second, alternative model predicts a more familiar oceanic accretionary wedge geometry with northeastward (plateauward) offscraping and thrust imbrication of plateau rocks. Our proposed MCS-OBS study focusing on the Malaita anticlinorium and North Solomon trench will use state-of-the-art data acquisition and processing techniques to address fundamental questions concerning the subduction/accretion/fragmentation of oceanic plateaus at subduction zones and their deformational effects on the overriding island arc-including collision-related arc polarity reversal. Answers to these questions are important for understanding how oceanic plateaus may contribute to growth of continents through time and how subduction zones initiate by polarity reversal. Funded by NSF grant OCE9301608. DOI: 10.1594/IEDA/500141
View Data >

Processed multichannel seismic data in the Solomon Islands convergent zone, Southwest Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9511 (1995)
Author(s): Mann, Paul
Description: A U.S.-Japan cooperative program to map crustal and perhaps upper mantle structures in the Solomon Islands convergent zone. Due to a major cable loss on the previous cruise the cable configuration varied between 112 and 128 channels as new sections were repaired or on-loaded (see cruise report). Japanese OBS's were used in this experiment along line SI-1. The primary objective of the MCS study and an independently proposed OBS study by Drs. K. Suyehiro and colleagues at the Ocean Research Institute in Tokyo, Japan, is to test two models for the formation of the Malaita anticlinorium - the deformed wedge of Cretaceous-Cenozoic pelagic limestone, basalt, and clastic rocks that most previous workers agree to be an emergent part of the Ontong Java Plateau. One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. A second, alternative model predicts a more familiar oceanic accretionary wedge geometry with northeastward (plateauward) offscraping and thrust imbrication of plateau rocks. Our proposed MCS-OBS study focusing on the Malaita anticlinorium and North Solomon trench will use state-of-the-art data acquisition and processing techniques to address fundamental questions concerning the subduction/accretion/fragmentation of oceanic plateaus at subduction zones and their deformational effects on the overriding island arc-including collision-related arc polarity reversal. Answers to these questions are important for understanding how oceanic plateaus may contribute to growth of continents through time and how subduction zones initiate by polarity reversal. Funded by NSF grant OCE9301608.
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Processed multichannel seismic data in the Solomon Islands convergent zone, Southwest Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9511 (1995)
Author(s): Mann, Paul
Description: A U.S.-Japan cooperative program to map crustal and perhaps upper mantle structures in the Solomon Islands convergent zone. Due to a major cable loss on the previous cruise the cable configuration varied between 112 and 128 channels as new sections were repaired or on-loaded (see cruise report). Japanese OBS's were used in this experiment along line SI-1. The primary objective of the MCS study and an independently proposed OBS study by Drs. K. Suyehiro and colleagues at the Ocean Research Institute in Tokyo, Japan, is to test two models for the formation of the Malaita anticlinorium - the deformed wedge of Cretaceous-Cenozoic pelagic limestone, basalt, and clastic rocks that most previous workers agree to be an emergent part of the Ontong Java Plateau. One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. A second, alternative model predicts a more familiar oceanic accretionary wedge geometry with northeastward (plateauward) offscraping and thrust imbrication of plateau rocks. Our proposed MCS-OBS study focusing on the Malaita anticlinorium and North Solomon trench will use state-of-the-art data acquisition and processing techniques to address fundamental questions concerning the subduction/accretion/fragmentation of oceanic plateaus at subduction zones and their deformational effects on the overriding island arc-including collision-related arc polarity reversal. Answers to these questions are important for understanding how oceanic plateaus may contribute to growth of continents through time and how subduction zones initiate by polarity reversal. Funded by NSF grant OCE9301608.
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Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science DOI: 10.1594/IEDA/500079
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Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
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Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
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Processed Multi-Channel Seismic Data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science DOI: 10.1594/IEDA/500078
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Processed Multi-Channel Seismic Data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
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Processed Multi-Channel Seismic Data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
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Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science DOI: 10.1594/IEDA/500079
View Data >

Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
View Data >

Ocean bottom seismometer (OBS) data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)
Author(s): Davey, Fred
Description: This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science
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Processed multichannel seismic data collected around the Austral Seamounts, South Pacific, acquired during the R/V Maurice Ewing survey EW9602 (1996)
Author(s): Alsop, Joyce
Description: This expedition to the Austral Seamounts, South Pacific, was a joint effort between MIT and LDEO. The purpose was to determine how the spacial and temporal emplacement of magmatic underplating relates to the volume and chemistry of the surface volcanism and the pressures, stresses, and temperatures in the crust. Funded by NSF grants OCE94-15930 and OCE94-17076. DOI: 10.1594/IEDA/500142
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Processed multichannel seismic data collected around the Austral Seamounts, South Pacific, acquired during the R/V Maurice Ewing survey EW9602 (1996)
Author(s): Alsop, Joyce
Description: This expedition to the Austral Seamounts, South Pacific, was a joint effort between MIT and LDEO. The purpose was to determine how the spacial and temporal emplacement of magmatic underplating relates to the volume and chemistry of the surface volcanism and the pressures, stresses, and temperatures in the crust. Funded by NSF grants OCE94-15930 and OCE94-17076.
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Processed multichannel seismic data collected around the Austral Seamounts, South Pacific, acquired during the R/V Maurice Ewing survey EW9602 (1996)
Author(s): Alsop, Joyce
Description: This expedition to the Austral Seamounts, South Pacific, was a joint effort between MIT and LDEO. The purpose was to determine how the spacial and temporal emplacement of magmatic underplating relates to the volume and chemistry of the surface volcanism and the pressures, stresses, and temperatures in the crust. Funded by NSF grants OCE94-15930 and OCE94-17076.
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Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114. DOI: 10.1594/IEDA/500133
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Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114.
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Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114.
View Data >

Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114. DOI: 10.1594/IEDA/500133
View Data >

Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114.
View Data >

Ocean bottom seismometer (OBS) data on the Mid-Atlantic Ridge, acquired during the R/V Maurice Ewing survey EW9704 (1997)
Author(s): Collins, John; Blackman, Donna; Lemmond, Peter
Description: This 1997 Ewing expedition to the Mid-Atlantic Ridge, part of the Nobel at the Mid-Atlantic Ridge Seismic Experiment, collected ocean bottom seismic refraction and single-channel seismic data. The purpose was to measure the reflected and refracted arrivals of seismic energy from sections of the mid-ocean ridge spreading center which have known, previously sampled, rock compositions. These data could then be used to identify and map rock types and test existing models for subsurface ridge structure, possibly providing a 3-dimensional map of the structure of a slow-spreading mid-ocean ridge. Funded by NSF grant OCE96-33114.
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Processed multichannel seismic data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Sawyer, Dale
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517. DOI: 10.1594/IEDA/500143
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Processed multichannel seismic data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Sawyer, Dale
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517.
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Processed multichannel seismic data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Sawyer, Dale
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517.
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Ocean bottom seismometer data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Nakamura, Yosio
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517. DOI: 10.1594/IEDA/500144
View Data >

Ocean bottom seismometer data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Nakamura, Yosio
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517.
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Ocean bottom seismometer data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)
Author(s): Nakamura, Yosio
Description: This cruise was part of a joint US-German MCS and wide-angle seismic experiment (ISE 97). The plan was to use a dense instrumented MCS/OBS wide angle seismic profile (56 OBS deployments) and 12 deep-penetrating MCS profiles to study the Galicia Interior Basin/Galicia Bank rifted continental margin and transform boundary with Iberia Abyssal Plain margin segment to the south. Funded by NSF grant OCE9521517.
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Processed 3D multichannel seismic data on the East Pacific Rise, acquired during the R/V Maurice Ewing survey EW9707 (1997)
Author(s): Kent, Graham
Description: The Anatomy of a Ridge Axis Discontinuity (ARAD) experiment was the first 3-D multichannel seismic reflection experiment conducted at a mid-ocean ridge. This cooperative experiment between Scripps Institution of Oceanography and Cambridge University also conducted a 3-D crustal tomography experiment of the ridge. The purpose of this 3-D multichannel seismic reflection and tomography survey along the EPR at 9N was to test competing models of magmatic segmentation beneath a fast spreading ridge. Funded by NSF,CU/BL/BIRPS,GB/NERC grant OCE9633774. DOI: 10.1594/IEDA/500145
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Processed 3D multichannel seismic data on the East Pacific Rise, acquired during the R/V Maurice Ewing survey EW9707 (1997)
Author(s): Kent, Graham
Description: The Anatomy of a Ridge Axis Discontinuity (ARAD) experiment was the first 3-D multichannel seismic reflection experiment conducted at a mid-ocean ridge. This cooperative experiment between Scripps Institution of Oceanography and Cambridge University also conducted a 3-D crustal tomography experiment of the ridge. The purpose of this 3-D multichannel seismic reflection and tomography survey along the EPR at 9N was to test competing models of magmatic segmentation beneath a fast spreading ridge. Funded by NSF,CU/BL/BIRPS,GB/NERC grant OCE9633774.
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Processed 3D multichannel seismic data on the East Pacific Rise, acquired during the R/V Maurice Ewing survey EW9707 (1997)
Author(s): Kent, Graham
Description: The Anatomy of a Ridge Axis Discontinuity (ARAD) experiment was the first 3-D multichannel seismic reflection experiment conducted at a mid-ocean ridge. This cooperative experiment between Scripps Institution of Oceanography and Cambridge University also conducted a 3-D crustal tomography experiment of the ridge. The purpose of this 3-D multichannel seismic reflection and tomography survey along the EPR at 9N was to test competing models of magmatic segmentation beneath a fast spreading ridge. Funded by NSF,CU/BL/BIRPS,GB/NERC grant OCE9633774.
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3.5 kHz subbottom seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802. DOI: 10.1594/IEDA/500147
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3.5 kHz subbottom seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802.
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Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802. DOI: 10.1594/IEDA/500146
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Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802.
View Data >

Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802.
View Data >

Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802. DOI: 10.1594/IEDA/500146
View Data >

Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802.
View Data >

Processed 4-channel seismic data in the eastern Pacific Ocean, acquired during the R/V Maurice Ewing survey EW9709 (1997)
Author(s): Lyle, Mitchell
Description: Part of a joint project between the University of Michigan and Boise State University (Idaho), this eastern Pacific cruise served as a site survey for ODP Leg 199. The objectives were to investigate detailed climatic and oceanographic conditions during the Paleogene period, to examine fossils in the sediments to evaluate oceanographic conditions and constrain models of the Eocene hot house conditions of worldwide warmth. The seismic reflection and sediment core data collected during this cruise were to be used to guide selection of specific sites for future deep ocean drilling. Funded by NSF grants OCE96-34141 and OCE96-33802.
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Processed multichannel seismic data on the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island, acquired during the R/V Maurice Ewing survey EW9801 (1998)
Author(s): Moore, Gregory
Description: PIs Greg Moore and Julia Morgan proposed this cruise to investigate the giant landslides off the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island. Data acquisition included seismic reflection and hydrosweep bathymetry data. Funded by NSF grant OCE 9711715. DOI: 10.1594/IEDA/500173
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Processed multichannel seismic data on the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island, acquired during the R/V Maurice Ewing survey EW9801 (1998)
Author(s): Moore, Gregory
Description: PIs Greg Moore and Julia Morgan proposed this cruise to investigate the giant landslides off the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island. Data acquisition included seismic reflection and hydrosweep bathymetry data. Funded by NSF grant OCE 9711715.
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Processed multichannel seismic data on the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island, acquired during the R/V Maurice Ewing survey EW9801 (1998)
Author(s): Moore, Gregory
Description: PIs Greg Moore and Julia Morgan proposed this cruise to investigate the giant landslides off the flanks of Kilauea volcano, Hawaii Island and Koolau volcano, Oahu Island. Data acquisition included seismic reflection and hydrosweep bathymetry data. Funded by NSF grant OCE 9711715.
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Ocean bottom seismometer data on the forearc basin and accretionary wedge of the northern Guadeloupe Island area of the Lesser Antilles forearc, acquired during the R/V Maurice Ewing survey EW9803 (1998)
Author(s): Christeson, Gail
Description: This 1998 R/V Ewing expedition surveyed the the forearc basin and accretionary wedge of the northern Guadeloupe Island area of the Lesser Antilles forearc. The purpose was to collect a combination of seismic reflection and ocean bottom seismometer data east of Guadeloupe to examine the Barbados backstop. Funded by NSF grant OCE 9617751. DOI: 10.1594/IEDA/500175
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Processed multichannel seismic data on the forearc basin and accretionary wedge of the northern Guadeloupe Island area of the Lesser Antilles forearc, acquired during the R/V Maurice Ewing survey EW9803 (1998)
Author(s): Bangs, Nathan
Description: This 1998 R/V Ewing expedition surveyed the the forearc basin and accretionary wedge of the northern Guadeloupe Island area of the Lesser Antilles forearc. The purpose was to collect a combination of seismic reflection and ocean bottom seismometer data east of Guadeloupe to examine the Barbados backstop. Funded by NSF grant OCE 9617751. DOI: 10.1594/IEDA/500174
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Processed multichannel seismic data in the south-central Cocos Plate region, acquired during the R/V Maurice Ewing survey EW9903 (1999)
Author(s): Kent, Graham
Description: This was an ODP site survey in the south-central Cocos Plate region, an area of super-fast spreading rates. The purpose was to obtain high-resolution multi-channel seismic reflection and ocean-bottom hydrophone seismic refraction data to detail the structure of the upper oceanic crust. Funded by NSF grants OCE 9812612 and OCE 9811948. DOI: 10.1594/IEDA/500176
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Processed multichannel seismic data in the south-central Cocos Plate region, acquired during the R/V Maurice Ewing survey EW9903 (1999)
Author(s): Kent, Graham
Description: This was an ODP site survey in the south-central Cocos Plate region, an area of super-fast spreading rates. The purpose was to obtain high-resolution multi-channel seismic reflection and ocean-bottom hydrophone seismic refraction data to detail the structure of the upper oceanic crust. Funded by NSF grants OCE 9812612 and OCE 9811948.
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Processed multichannel seismic data in the south-central Cocos Plate region, acquired during the R/V Maurice Ewing survey EW9903 (1999)
Author(s): Kent, Graham
Description: This was an ODP site survey in the south-central Cocos Plate region, an area of super-fast spreading rates. The purpose was to obtain high-resolution multi-channel seismic reflection and ocean-bottom hydrophone seismic refraction data to detail the structure of the upper oceanic crust. Funded by NSF grants OCE 9812612 and OCE 9811948.
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Reprocessed multichannel seismic data across ODP Site 1256D in the eastern Pacific Ocean, acquired in 1999 during the R/V Marcus Ewing survey EW9903
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 1256D to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program. DOI: 10.1594/IEDA/500071
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Reprocessed multichannel seismic data across ODP Site 1256D in the eastern Pacific Ocean, acquired in 1999 during the R/V Marcus Ewing survey EW9903
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 1256D to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program.
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Reprocessed multichannel seismic data across ODP Site 1256D in the eastern Pacific Ocean, acquired in 1999 during the R/V Marcus Ewing survey EW9903
Author(s): Christeson, Gail
Description: These data were reprocessed as time and depth migrations in order to compare the seismic data at ODP Site 1256D to the seismic data at the IODP Expedition 352 sites. Funded by the U.S. Science Support Program.
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Processed multichannel seismic data on the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon, acquired during the R/V Maurice Ewing survey EW9905 (1999)
Author(s): Trehu, Anne
Description: This 1999 Ewing cruise conducted a high-resolution seismic survey to image the structure of the southern flank of the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon for the ORDGE (Origin and Development of the Gorda Escarpment) project. The objectives were to determine whether there are proto-San Andrea's faults in the Vincaino Block or sutures between blocks and the Ridge; to constrain the timing of the uplift of the Escarpment; and to study the origin and tectonic development of the Gorda Escarpment (ORDGE). Funded by NSF grant OCE 9811498. DOI: 10.1594/IEDA/500177
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Processed multichannel seismic data on the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon, acquired during the R/V Maurice Ewing survey EW9905 (1999)
Author(s): Trehu, Anne
Description: This 1999 Ewing cruise conducted a high-resolution seismic survey to image the structure of the southern flank of the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon for the ORDGE (Origin and Development of the Gorda Escarpment) project. The objectives were to determine whether there are proto-San Andrea's faults in the Vincaino Block or sutures between blocks and the Ridge; to constrain the timing of the uplift of the Escarpment; and to study the origin and tectonic development of the Gorda Escarpment (ORDGE). Funded by NSF grant OCE 9811498.
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Processed multichannel seismic data on the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon, acquired during the R/V Maurice Ewing survey EW9905 (1999)
Author(s): Trehu, Anne
Description: This 1999 Ewing cruise conducted a high-resolution seismic survey to image the structure of the southern flank of the Gorda Escarpment and the transition between the Escarpment and Mendocino Ridge offshore Oregon for the ORDGE (Origin and Development of the Gorda Escarpment) project. The objectives were to determine whether there are proto-San Andrea's faults in the Vincaino Block or sutures between blocks and the Ridge; to constrain the timing of the uplift of the Escarpment; and to study the origin and tectonic development of the Gorda Escarpment (ORDGE). Funded by NSF grant OCE 9811498.
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Moore, Gregory
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295. DOI: 10.1594/IEDA/500178
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Moore, Gregory
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295.
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Moore, Gregory
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295.
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Bangs, Nathan
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295. DOI: 10.1594/IEDA/500178
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Bangs, Nathan
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295.
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Processed 3D multichannel seismic data in the Nankai Trough accretionary prism, acquired by the R/V Maurice Ewing in 1999 (EW9907 and EW9908)
Author(s): Bangs, Nathan
Description: The western Nankai 3-D experiment was conducted in 1999 on the R/V Maurice Ewing Legs 7 (EW9907) and 8 (EW9908). This is a collaborative project between UTIG, University of Hawaii, University of California, Santa Cruz, University of Tokyo, Japanese Geological Survey and STA JAMSTEC. The project consists of 81 dip lines ( Line numbers 92 through 172) each 80 km long with a shot spacing of 50 m. The streamer was 240 channels, 6 km long. There are also a few lines outside of the region, lines Nan-1 (the first line shot and has no navigation), 19, 20, 40, 42, and 50. Two 3-D data volumes are available, one a pre-stack time migration and the other a pre-stack depth migration. The goal of the study is to examine changes in physical properties along the thrust as it changes from aseismic to seismic expression. Understanding this transition from compaction and aseismic slip to brittle failure is a major unknown in understanding lithospheric consumption and earthquake dynamics. Funded by NSF grants OCE 9730637, OCE 9802264, and OCE 9802295.
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Processed multichannel seismic data in the western Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Moore, Gregory
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grants OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792. DOI: 10.1594/IEDA/500179
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Processed multichannel seismic data in the western Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Moore, Gregory
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grants OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792.
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Processed multichannel seismic data in the western Woodlark Basin, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Moore, Gregory
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grants OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792.
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Processed multichannel seismic data along the northern continental margin of Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Silver, Eli
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grant OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792. DOI: 10.1594/IEDA/500180
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Processed multichannel seismic data along the northern continental margin of Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Silver, Eli
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grant OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792.
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Processed multichannel seismic data along the northern continental margin of Papua New Guinea, acquired during the R/V Maurice Ewing survey EW9910 (1999)
Author(s): Silver, Eli
Description: This 1999 Ewing cruise offshore Papua New Guinea, collecting MCS and OBS/OBH data, involved researchers from the University of Hawaii (UH), Lamont-Doherty Earth Observatory (LDEO), and the University of California, Santa Cruz (UCSC). The first part of the cruise was an ODP site survey to characterize in detail the low-angle fault at the rift-to-spreading transition in the Woodlark Basin. UH worked on the MCS and LDEO on the OBS/OBH data. UCSC processed the data from the second part of the cruise which focused on the source region of a 1998 tsunami along the northern continental margin of Papua New Guinea. The purpose of the early part of the cruise was to study the seismicity of an active continental breakup in the western Woodlark Basin. The goal of the second part was to study the internal structure of the tsunami source region. Funded by NSF grant OCE 9730864, OCE 9730824, OCE 9730567, and OCE 9725792.
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Processed multichannel seismic data in the Lau Basin, acquired during the R/V Maurice Ewing survey EW9914 (1999)
Author(s): Harding, Alistair
Description: This experiment was a reconnaissance reflection survey that was the first to collect multichannel seismic data along and across all the major spreading centers in the Lau basin south of the Peggy Ridge - the Central Lau spreading center (CLSC), the Eastern Lau spreading center (ELSC), and the Valu Fa ridge (VFR). Funded by NSF grant OCE 9529870. DOI: 10.1594/IEDA/500181
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Processed multichannel seismic data in the Lau Basin, acquired during the R/V Maurice Ewing survey EW9914 (1999)
Author(s): Harding, Alistair
Description: This experiment was a reconnaissance reflection survey that was the first to collect multichannel seismic data along and across all the major spreading centers in the Lau basin south of the Peggy Ridge - the Central Lau spreading center (CLSC), the Eastern Lau spreading center (ELSC), and the Valu Fa ridge (VFR). Funded by NSF grant OCE 9529870.
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Processed multichannel seismic data in the Lau Basin, acquired during the R/V Maurice Ewing survey EW9914 (1999)
Author(s): Harding, Alistair
Description: This experiment was a reconnaissance reflection survey that was the first to collect multichannel seismic data along and across all the major spreading centers in the Lau basin south of the Peggy Ridge - the Central Lau spreading center (CLSC), the Eastern Lau spreading center (ELSC), and the Valu Fa ridge (VFR). Funded by NSF grant OCE 9529870.
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Multi-channel field seismic data near the Mid-Atlantic Ridge in the South Atlantic, acquired by the R/V Fred Moore in 1979 in support of the International Phase of Ocean Drilling (IPOD)
Author(s): Austin, James
Description: This cruise in 1979 collected a series of seismic reflection profiles near the Mid-Atlantic Ridge in the South Atlantic.?The purpose was to collect data in support of the International Phase of Ocean Drilling (IPOD) in the South Atlantic. DOI: 10.1594/IEDA/500229
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Processed multi-channel seismic data near the Mid-Atlantic Ridge in the South Atlantic, acquired by the R/V Fred Moore in 1979 in support of the International Phase of Ocean Drilling (IPOD)
Author(s): Austin, James
Description: This cruise in 1979 collected a series of seismic reflection profiles near the Mid-Atlantic Ridge in the South Atlantic.?The purpose was to collect data in support of the International Phase of Ocean Drilling (IPOD) in the South Atlantic. DOI: 10.1594/IEDA/500230
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CHIRP Data from Weeks Bay, Alabama, acquired during R/V Jenny survey JN0201 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay along the eastern shore of Mobile Bay, Alabama in 2002. The goal was to use the data to study how the Holocene evolution of Weeks Bay was impacted by the interactions between sea level rise and the preceding topography. Funded by NSF (Grant EAR 0107650), by the Office of Ocean and Coastal Resource Management, National Ocean Service, NOAA, U.S. Department of Commerce, and by the Alabama Department of Conservation and Natural Resources. DOI: 10.1594/IEDA/500207
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CHIRP Data from Weeks Bay, Alabama, acquired during R/V Jenny survey JN0201 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay along the eastern shore of Mobile Bay, Alabama in 2002. The goal was to use the data to study how the Holocene evolution of Weeks Bay was impacted by the interactions between sea level rise and the preceding topography. Funded by NSF (Grant EAR 0107650), by the Office of Ocean and Coastal Resource Management, National Ocean Service, NOAA, U.S. Department of Commerce, and by the Alabama Department of Conservation and Natural Resources.
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CHIRP Data from Weeks Bay, Alabama, acquired during R/V Jenny survey JN0201 (2002)
Author(s): Anderson, John
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay along the eastern shore of Mobile Bay, Alabama in 2002. The goal was to use the data to study how the Holocene evolution of Weeks Bay was impacted by the interactions between sea level rise and the preceding topography. Funded by NSF (Grant EAR 0107650), by the Office of Ocean and Coastal Resource Management, National Ocean Service, NOAA, U.S. Department of Commerce, and by the Alabama Department of Conservation and Natural Resources.
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CHIRP Data from Lake Shelby, Alabama, acquired during R/V Jenny survey JN0205 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Lake Shelby, Alabama in 2002. The goals were to understand the Lake Shelby depositional environment through time and sand deposition. DOI: 10.1594/IEDA/500220
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CHIRP Data from Lake Shelby, Alabama, acquired during R/V Jenny survey JN0205 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Lake Shelby, Alabama in 2002. The goals were to understand the Lake Shelby depositional environment through time and sand deposition.
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CHIRP Data from Lake Shelby, Alabama, acquired during R/V Jenny survey JN0205 (2002)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Lake Shelby, Alabama in 2002. The goals were to understand the Lake Shelby depositional environment through time and sand deposition.
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0206 (2002)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2002. Two companion cruises, JN0306 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2003 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund. DOI: 10.1594/IEDA/500195
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0206 (2002)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2002. Two companion cruises, JN0306 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2003 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0206 (2002)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2002. Two companion cruises, JN0306 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2003 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
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CHIRP Data from Grand Bay, Alabama, acquired during R/V Jenny survey JN0208 (2002)
Author(s): Rodriguez, Antonio
Description: Part of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay, Alabama in 2002.?The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF Grant EAR 0107650. DOI: 10.1594/IEDA/500208
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CHIRP Data from Grand Bay, Alabama, acquired during R/V Jenny survey JN0208 (2002)
Author(s): Rodriguez, Antonio
Description: Part of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay, Alabama in 2002.?The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF Grant EAR 0107650.
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CHIRP Data from Grand Bay, Alabama, acquired during R/V Jenny survey JN0208 (2002)
Author(s): Rodriguez, Antonio
Description: Part of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in Weeks Bay, Alabama in 2002.?The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF Grant EAR 0107650.
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0306 (2003)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2003. Two companion cruises, JN0206 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund. DOI: 10.1594/IEDA/500196
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0306 (2003)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2003. Two companion cruises, JN0206 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
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CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0306 (2003)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2003. Two companion cruises, JN0206 and JN0406, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2004. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
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CHIRP Data from Weeks Lake, Alabama, acquired during R/V Jenny survey JN0405 (2004)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Lake, Alabama in 2004. The goal was to evaluate the control of interactions between sea level and preexisting topography on the evolution of Weeks Bay using seismic and core studies and radiocarbon dating. Some pings may have incorrect latitude/longitude in the headers. DOI: 10.1594/IEDA/500235
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CHIRP Data from Weeks Lake, Alabama, acquired during R/V Jenny survey JN0405 (2004)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Lake, Alabama in 2004. The goal was to evaluate the control of interactions between sea level and preexisting topography on the evolution of Weeks Bay using seismic and core studies and radiocarbon dating. Some pings may have incorrect latitude/longitude in the headers.
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CHIRP Data from Weeks Lake, Alabama, acquired during R/V Jenny survey JN0405 (2004)
Author(s): Rodriguez, Antonio
Description: This R/V Jenny survey collected high-resolution CHIRP data in Weeks Lake, Alabama in 2004. The goal was to evaluate the control of interactions between sea level and preexisting topography on the evolution of Weeks Bay using seismic and core studies and radiocarbon dating. Some pings may have incorrect latitude/longitude in the headers.
View Data >

CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0406 (2004)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2004. Two companion cruises, JN0206 and JN0306, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2003. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund. DOI: 10.1594/IEDA/500197
View Data >

CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0406 (2004)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2004. Two companion cruises, JN0206 and JN0306, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2003. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
View Data >

CHIRP Data from the eastern Mississippi Sound, Alabama, acquired during R/V Jenny survey JN0406 (2004)
Author(s): Rodriguez, Antonio
Description: Party of a study to explore incised valley fill from three Gulf of Mexico bays, specifically Mobile Bay, Galveston Bay, and Corpus Christi Bay, this R/V Jenny survey collected high-resolution CHIRP data in eastern Mississippi Sound, Alabama during the summer of 2004. Two companion cruises, JN0206 and JN0306, collected CHIRP data in eastern Mississippi Sound in the summers of 2002 and 2003. The goal was to use the data to identify flooding surfaces and help quantify coastal response to forcing mechanisms. This will help test the hypothesis that variations in the rate of coastal subsidence and river discharge were not the cause of the observed coastal backstepping events. Funded by NSF grant EAR-0107650, the American Chemical Society Petroleum Research Fund grant ACS-PRF 36694-G8, the Gulf Coast Association of Geological Societies, and the Hooks Research Fund.
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Raw CHIRP data from Kingston Harbor, Jamaica, Caribbean Ocean, acquired in 2009 (KH0109).
Author(s): Wright, Vashan
Description: Kingston, Jamaica, the capital of the Caribbean island nation of Jamaica, is prone to infrequent but devastating earthquakes and tsunamis, yet the locations of the faults responsible for generating these geohazards are poorly known. This project used state of the art Chirp (3.5khz) submarine seismic imaging and sediment coring techniques to map active faults and recently active submarine slumps in and around Kingston Harbor. DOI: 10.1594/IEDA/500256
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Raw CHIRP data from Kingston Harbor, Jamaica, Caribbean Ocean, acquired in 2009 (KH0109).
Author(s): Wright, Vashan
Description: Kingston, Jamaica, the capital of the Caribbean island nation of Jamaica, is prone to infrequent but devastating earthquakes and tsunamis, yet the locations of the faults responsible for generating these geohazards are poorly known. This project used state of the art Chirp (3.5khz) submarine seismic imaging and sediment coring techniques to map active faults and recently active submarine slumps in and around Kingston Harbor.
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Raw CHIRP data from Kingston Harbor, Jamaica, Caribbean Ocean, acquired in 2009 (KH0109).
Author(s): Wright, Vashan
Description: Kingston, Jamaica, the capital of the Caribbean island nation of Jamaica, is prone to infrequent but devastating earthquakes and tsunamis, yet the locations of the faults responsible for generating these geohazards are poorly known. This project used state of the art Chirp (3.5khz) submarine seismic imaging and sediment coring techniques to map active faults and recently active submarine slumps in and around Kingston Harbor.
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Processed Multi-Channel Seismic Data on the Gardar and Eirik sediment drifts south of Iceland and Greenland, acquired during the R/V Knorr expedition KN166-14 (2002)
Author(s): Alsop, Joyce
Description: This 2002 Knorr survey collected 48-channel seismic reflection data, continuous swath bathymetry, side-scan sonar, 3.5 kHz echosounder data and cores on the Gardar and Eirik sediment drifts south of Iceland and Greenland. Serving as a site survey for IODP 303 and 306, the objectives were to obtain seismic reflection data with which to interpret the early history of drift formation and to examine modern processes that shape and modify the drift deposits. Funded by NSF grants OCE00-95254, OCE00-95171, and OCE00-95219. DOI: 10.1594/IEDA/500135
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Processed Multi-Channel Seismic Data on the Gardar and Eirik sediment drifts south of Iceland and Greenland, acquired during the R/V Knorr expedition KN166-14 (2002)
Author(s): Alsop, Joyce
Description: This 2002 Knorr survey collected 48-channel seismic reflection data, continuous swath bathymetry, side-scan sonar, 3.5 kHz echosounder data and cores on the Gardar and Eirik sediment drifts south of Iceland and Greenland. Serving as a site survey for IODP 303 and 306, the objectives were to obtain seismic reflection data with which to interpret the early history of drift formation and to examine modern processes that shape and modify the drift deposits. Funded by NSF grants OCE00-95254, OCE00-95171, and OCE00-95219.
View Data >

Processed Multi-Channel Seismic Data on the Gardar and Eirik sediment drifts south of Iceland and Greenland, acquired during the R/V Knorr expedition KN166-14 (2002)
Author(s): Alsop, Joyce
Description: This 2002 Knorr survey collected 48-channel seismic reflection data, continuous swath bathymetry, side-scan sonar, 3.5 kHz echosounder data and cores on the Gardar and Eirik sediment drifts south of Iceland and Greenland. Serving as a site survey for IODP 303 and 306, the objectives were to obtain seismic reflection data with which to interpret the early history of drift formation and to examine modern processes that shape and modify the drift deposits. Funded by NSF grants OCE00-95254, OCE00-95171, and OCE00-95219.
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Processed multichannel seismic data in the Marmara Sea, acquired during the R/V Koca Piri Reis survey in 2008 as part of the Turkish-American Marmara Multichannel Project (TAMAM)
Author(s): Sorlien, Christopher
Description: This 2008 R/V Koca Piri Reis survey of the Marmara Sea was a joint expedition between US and Turkish scientists, collecting over 2649 km of MCS reflection and 3.5 kHz Chirp data for the Turkish-American Marmara Multichannel Project (TAMAM). In 2010, a companion cruise collected additional data. The primary goal of this project was to acquire a high-resolution seismic dataset that could be used to make stratigraphic correlations within and between subbasins in the Marmara Sea and to image shallow structures. Funded by NSF (grants OCE03-28119, OCE03-27273 and OCE09-29063), the Istanbul Technical University, and the Institute of Marine Science and Technology (Dokuz Eylul Univeristy, Izmir, Turkey). DOI: 10.1594/IEDA/500159
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Processed multichannel seismic data in the Marmara Sea, acquired during the R/V Koca Piri Reis survey in 2008 as part of the Turkish-American Marmara Multichannel Project (TAMAM)
Author(s): Sorlien, Christopher
Description: This 2008 R/V Koca Piri Reis survey of the Marmara Sea was a joint expedition between US and Turkish scientists, collecting over 2649 km of MCS reflection and 3.5 kHz Chirp data for the Turkish-American Marmara Multichannel Project (TAMAM). In 2010, a companion cruise collected additional data. The primary goal of this project was to acquire a high-resolution seismic dataset that could be used to make stratigraphic correlations within and between subbasins in the Marmara Sea and to image shallow structures. Funded by NSF (grants OCE03-28119, OCE03-27273 and OCE09-29063), the Istanbul Technical University, and the Institute of Marine Science and Technology (Dokuz Eylul Univeristy, Izmir, Turkey).
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Processed multichannel seismic data in the Marmara Sea, acquired during the R/V Koca Piri Reis survey in 2008 as part of the Turkish-American Marmara Multichannel Project (TAMAM)
Author(s): Sorlien, Christopher
Description: This 2008 R/V Koca Piri Reis survey of the Marmara Sea was a joint expedition between US and Turkish scientists, collecting over 2649 km of MCS reflection and 3.5 kHz Chirp data for the Turkish-American Marmara Multichannel Project (TAMAM). In 2010, a companion cruise collected additional data. The primary goal of this project was to acquire a high-resolution seismic dataset that could be used to make stratigraphic correlations within and between subbasins in the Marmara Sea and to image shallow structures. Funded by NSF (grants OCE03-28119, OCE03-27273 and OCE09-29063), the Istanbul Technical University, and the Institute of Marine Science and Technology (Dokuz Eylul Univeristy, Izmir, Turkey).
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Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kairei survey KR11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS DOI: 10.1594/IEDA/500251
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Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kairei survey KR11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS
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Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kairei survey KR11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS
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Processed 3D multichannel seismic data from the Kumano Basin, Nankai Trough, acquired in 2006 as part of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)
Author(s): Bangs, Nathan; Moore, Gregory
Description: A major component of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), this collaborative effort used the commercial services of PGS to collect 3D, deep-penetrating, multichannel seismic reflection data on board the M/V Nordic Explorer (KUMANO3D). The goal was to obtain data that would define the fundamental geometry, history and physical properties of the multiple faults that compose the up-dip end of the seismogenic zone. Funding was provided by NSF grants OCE-0451790, OCE-0452340, OCE-0451602, and OCE-0451508. DOI: 10.1594/IEDA/500001
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Processed 3D multichannel seismic data from the Kumano Basin, Nankai Trough, acquired in 2006 as part of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)
Author(s): Bangs, Nathan; Moore, Gregory
Description: A major component of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), this collaborative effort used the commercial services of PGS to collect 3D, deep-penetrating, multichannel seismic reflection data on board the M/V Nordic Explorer (KUMANO3D). The goal was to obtain data that would define the fundamental geometry, history and physical properties of the multiple faults that compose the up-dip end of the seismogenic zone. Funding was provided by NSF grants OCE-0451790, OCE-0452340, OCE-0451602, and OCE-0451508.
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Processed 3D multichannel seismic data from the Kumano Basin, Nankai Trough, acquired in 2006 as part of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)
Author(s): Bangs, Nathan; Moore, Gregory
Description: A major component of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), this collaborative effort used the commercial services of PGS to collect 3D, deep-penetrating, multichannel seismic reflection data on board the M/V Nordic Explorer (KUMANO3D). The goal was to obtain data that would define the fundamental geometry, history and physical properties of the multiple faults that compose the up-dip end of the seismogenic zone. Funding was provided by NSF grants OCE-0451790, OCE-0452340, OCE-0451602, and OCE-0451508.
View Data >

Processed 3D multichannel seismic data from the Kumano Basin, Nankai Trough, acquired in 2006 as part of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)
Author(s): Bangs, Nathan; Moore, Gregory
Description: A major component of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), this collaborative effort used the commercial services of PGS to collect 3D, deep-penetrating, multichannel seismic reflection data on board the M/V Nordic Explorer (KUMANO3D). The goal was to obtain data that would define the fundamental geometry, history and physical properties of the multiple faults that compose the up-dip end of the seismogenic zone. Funding was provided by NSF grants OCE-0451790, OCE-0452340, OCE-0451602, and OCE-0451508. DOI: 10.1594/IEDA/500001
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Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kaiyo survey KY11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS DOI: 10.1594/IEDA/500252
View Data >

Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kaiyo survey KY11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS
View Data >

Processed MCS data from the Japan Trench forearc, acquired during JAMSTEC's R/V Kaiyo survey KY11E05
Author(s): Moore, Gregory
Description: This dataset includes processed MCS
View Data >

CHIRP data collected on Lake Crescent, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Cresent by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Located at the foot of the Olympic Mountains in western Washington, Lake Crescent is a deep glacially carved lake occupying portions of two steep-sided fault-controlled valleys. The lake dates to around14 ka, following retreat of the Juan de Fuca lobe of the Cordilleran ice sheet to the east. The depth of the lake is ~190 m deep. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064. DOI: 10.1594/IEDA/500067
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CHIRP data collected on Lake Crescent, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Cresent by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Located at the foot of the Olympic Mountains in western Washington, Lake Crescent is a deep glacially carved lake occupying portions of two steep-sided fault-controlled valleys. The lake dates to around14 ka, following retreat of the Juan de Fuca lobe of the Cordilleran ice sheet to the east. The depth of the lake is ~190 m deep. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064.
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CHIRP data collected on Lake Crescent, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Cresent by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Located at the foot of the Olympic Mountains in western Washington, Lake Crescent is a deep glacially carved lake occupying portions of two steep-sided fault-controlled valleys. The lake dates to around14 ka, following retreat of the Juan de Fuca lobe of the Cordilleran ice sheet to the east. The depth of the lake is ~190 m deep. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064.
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CHIRP data collected on Lake Quinault, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Quinault by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Lake Quinault, located at the foot of the Olympic Mountains in western Washington, formed around 23,000 years ago behind the terminal moraine of the Quinault valley glacier. The lake is situated about 30 km inland from the Pacific Ocean and has steep sides and a flat bottom with a maximum depth of ~80 m. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064. DOI: 10.1594/IEDA/500068
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CHIRP data collected on Lake Quinault, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Quinault by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Lake Quinault, located at the foot of the Olympic Mountains in western Washington, formed around 23,000 years ago behind the terminal moraine of the Quinault valley glacier. The lake is situated about 30 km inland from the Pacific Ocean and has steep sides and a flat bottom with a maximum depth of ~80 m. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064.
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CHIRP data collected on Lake Quinault, Washington, in 2013
Author(s): Bohnenstiehl, DelWayne
Description: The PIs collected high resolution CHIRP data in Lake Quinault by towing an Edgetech SB512i onboard a small catamaran behind a small boat. Lake Quinault, located at the foot of the Olympic Mountains in western Washington, formed around 23,000 years ago behind the terminal moraine of the Quinault valley glacier. The lake is situated about 30 km inland from the Pacific Ocean and has steep sides and a flat bottom with a maximum depth of ~80 m. The goal of this project was to improve understanding of the terrestrial upland response to great subduction or other large earthquakes on the Cascadia margin of North America. Funded by NSF grant EAR-1226064.
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1990 (LS9001)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1990 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown. DOI: 10.1594/IEDA/500171
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1990 (LS9001)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1990 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1990 (LS9001)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1990 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1991 (LS9101)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1991 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown. DOI: 10.1594/IEDA/500172
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1991 (LS9101)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1991 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
View Data >

Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1991 (LS9101)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1991 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
View Data >

Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1992 (LS9201)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1992 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown. DOI: 10.1594/IEDA/500184
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1992 (LS9201)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1992 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
View Data >

Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1992 (LS9201)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1992 R/V Lone Star survey used a uniboom seismic source to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
View Data >

Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1993 (LS9301)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1993 R/V Lone Star survey used a 50 cubic inch Generator-Injection (GI) gun to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown. DOI: 10.1594/IEDA/500185
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1993 (LS9301)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1993 R/V Lone Star survey used a 50 cubic inch Generator-Injection (GI) gun to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
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Single channel seismic data on the east Texas continental shelf from Galveston Island to Matagorda Island, acquired by the R/V Lone Star in 1993 (LS9301)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1993 R/V Lone Star survey used a 50 cubic inch Generator-Injection (GI) gun to collect SCS data from Galveston Island to Matagorda Island on the east Texas continental shelf. The objective was to study the effects of global sea-level changes on fluvial-deltaic systems. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). Navigation for the shot data was obtained by digitizing fix points from a location map from Abdulah, 1995. Start/stop of the SEG-Y files was assumed to match start/stop of the digitized navigation. Actual start/end dates of survey are unknown.
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Single channel seismic field data from the central Texas shelf off Corpus Christi, acquired by the R/V Lone Star in 1995 (LS9508)
Author(s): Anderson, John
Description: This 1995 R/V Lone Star survey collected high-resolution single-channel seismic data off Corpus Christi, Texas, between the Rio Grande and Colorado-Brazos fluvial-deltaic systems. The purpose was to study the depositional environments and paleogeography of the shelf. Data acquisition was funded by a Rice University consortium of petroleum companies. Data archiving was funded by the U.S. Bureau of Ocean Energy Management (BOEM). DOI: 10.1594/IEDA/500160
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Single channel seismic field data from the central Texas shelf off Corpus Christi, acquired by the R/V Lone Star in 1995 (LS9508)
Author(s): Anderson, John
Description: This 1995 R/V Lone Star survey collected high-resolution single-channel seismic data off Corpus Christi, Texas, between the Rio Grande and Colorado-Brazos fluvial-deltaic systems. The purpose was to study the depositional environments and paleogeography of the shelf. Data acquisition was funded by a Rice University consortium of petroleum companies. Data archiving was funded by the U.S. Bureau of Ocean Energy Management (BOEM).
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Processed single channel seismic data from the central Texas shelf off Corpus Christi, acquired by the R/V Lone Star in 1995 (LS9508)
Author(s): Anderson, John
Description: This 1995 R/V Lone Star survey collected high-resolution single-channel seismic data off Corpus Christi, Texas, between the Rio Grande and Colorado-Brazos fluvial-deltaic systems. The purpose was to study the depositional environments and paleogeography of the shelf. Data acquisition was funded by a Rice University consortium of petroleum companies. Data archiving was funded by the U.S. Bureau of Ocean Energy Management (BOEM). DOI: 10.1594/IEDA/500161
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Processed single channel seismic data from the central Texas shelf off Corpus Christi, acquired by the R/V Lone Star in 1995 (LS9508)
Author(s): Anderson, John
Description: This 1995 R/V Lone Star survey collected high-resolution single-channel seismic data off Corpus Christi, Texas, between the Rio Grande and Colorado-Brazos fluvial-deltaic systems. The purpose was to study the depositional environments and paleogeography of the shelf. Data acquisition was funded by a Rice University consortium of petroleum companies. Data archiving was funded by the U.S. Bureau of Ocean Energy Management (BOEM).
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Processed single channel seismic data from the central Texas shelf off Corpus Christi, acquired by the R/V Lone Star in 1995 (LS9508)
Author(s): Anderson, John
Description: This 1995 R/V Lone Star survey collected high-resolution single-channel seismic data off Corpus Christi, Texas, between the Rio Grande and Colorado-Brazos fluvial-deltaic systems. The purpose was to study the depositional environments and paleogeography of the shelf. Data acquisition was funded by a Rice University consortium of petroleum companies. Data archiving was funded by the U.S. Bureau of Ocean Energy Management (BOEM).
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Single channel seismic field data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1995 (LS9509)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf off south Texas during September 1995 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply. DOI: 10.1594/IEDA/500167
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Single channel seismic field data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1995 (LS9509)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf off south Texas during September 1995 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply.
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Processed single channel seismic data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1995 (LS9509)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf off south Texas during September 1995 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply. DOI: 10.1594/IEDA/500168
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Processed single channel seismic data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1995 (LS9509)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf off south Texas during September 1995 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply.
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Processed single channel seismic data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1995 (LS9509)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf off south Texas during September 1995 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply.
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CHIRP data collected on Sabine and Heald banks off Galveston Bay on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9601)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on Sabine and Heald banks off Galveston Bay on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500170
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CHIRP data collected on Sabine and Heald banks off Galveston Bay on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9601)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on Sabine and Heald banks off Galveston Bay on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected on Sabine and Heald banks off Galveston Bay on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9601)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on Sabine and Heald banks off Galveston Bay on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in Galveston Bay, Texas, acquired by the R/V Lone Star in 1996 (LS9606GB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in Galveston Bay, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500186
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CHIRP data collected in Galveston Bay, Texas, acquired by the R/V Lone Star in 1996 (LS9606GB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in Galveston Bay, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in Galveston Bay, Texas, acquired by the R/V Lone Star in 1996 (LS9606GB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in Galveston Bay, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in the Trinity-Sabine incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9606TS)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in the Trinity-Sabine incised valley and on the Bolivar Roads ebb tidal delta on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500183
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CHIRP data collected in the Trinity-Sabine incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9606TS)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in the Trinity-Sabine incised valley and on the Bolivar Roads ebb tidal delta on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in the Trinity-Sabine incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1996 (LS9606TS)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data in the Trinity-Sabine incised valley and on the Bolivar Roads ebb tidal delta on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected on the Texas inner continental shelf near Freeport, Texas, acquired by the R/V Lone Star in 1996 (LS9607)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on the Texas inner continental shelf near Freeport, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500188
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CHIRP data collected on the Texas inner continental shelf near Freeport, Texas, acquired by the R/V Lone Star in 1996 (LS9607)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on the Texas inner continental shelf near Freeport, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected on the Texas inner continental shelf near Freeport, Texas, acquired by the R/V Lone Star in 1996 (LS9607)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1996 R/V Lone Star survey collected CHIRP data on the Texas inner continental shelf near Freeport, Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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Single channel seismic field data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf and delta off south Texas during September 1996 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the slope using a 20 ci sleeve gun and collected CHIRP data. DOI: 10.1594/IEDA/500165
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Single channel seismic field data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf and delta off south Texas during September 1996 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the slope using a 20 ci sleeve gun and collected CHIRP data.
View Data >

Single channel seismic field data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande shelf and delta off south Texas during September 1996 using a 15 ci watergun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the slope using a 20 ci sleeve gun and collected CHIRP data.
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Single channel seismic field data on the Rio Grande slope and delta off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande slope and delta off south Texas during September 1996 using a 20 ci sleeve gun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the shelf using a 15 ci watergun and collected CHIRP data. DOI: 10.1594/IEDA/500164
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Single channel seismic field data on the Rio Grande slope and delta off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande slope and delta off south Texas during September 1996 using a 20 ci sleeve gun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the shelf using a 15 ci watergun and collected CHIRP data.
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Single channel seismic field data on the Rio Grande slope and delta off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected single-channel seismic data on the Rio Grande slope and delta off south Texas during September 1996 using a 20 ci sleeve gun. The objectives were to study the evolution of the sediment supply. The survey collected a second SCS data set on the shelf using a 15 ci watergun and collected CHIRP data.
View Data >

CHIRP data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected CHIRP data on the Rio Grande shelf off south Texas during September 1996. The objectives were to study the evolution of the sediment supply. The survey also collected single channel seismic data sets on the slope using a 20 ci sleeve gun and on the shelf using a 15 ci watergun. DOI: 10.1594/IEDA/500166
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CHIRP data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected CHIRP data on the Rio Grande shelf off south Texas during September 1996. The objectives were to study the evolution of the sediment supply. The survey also collected single channel seismic data sets on the slope using a 20 ci sleeve gun and on the shelf using a 15 ci watergun.
View Data >

CHIRP data on the Rio Grande shelf off south Texas, acquired by the R/V Lone Star in 1996 (LS9609)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this R/V Lone Star survey collected CHIRP data on the Rio Grande shelf off south Texas during September 1996. The objectives were to study the evolution of the sediment supply. The survey also collected single channel seismic data sets on the slope using a 20 ci sleeve gun and on the shelf using a 15 ci watergun.
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CHIRP data collected in the Trinity incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1997 (LS9705)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1997 R/V Lone Star survey collected CHIRP data in the Trinity incised valley on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500182
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CHIRP data collected in the Trinity incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1997 (LS9705)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1997 R/V Lone Star survey collected CHIRP data in the Trinity incised valley on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in the Trinity incised valley on the east Texas shelf, acquired by the R/V Lone Star in 1997 (LS9705)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1997 R/V Lone Star survey collected CHIRP data in the Trinity incised valley on the east Texas shelf. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in Mobile Bay, Alabama, acquired by the R/V Lone Star in 1998 (LS9807MB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1998 R/V Lone Star survey collected CHIRP data and cores in Mobile Bay, Alabama. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500187
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CHIRP data collected in Mobile Bay, Alabama, acquired by the R/V Lone Star in 1998 (LS9807MB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1998 R/V Lone Star survey collected CHIRP data and cores in Mobile Bay, Alabama. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in Mobile Bay, Alabama, acquired by the R/V Lone Star in 1998 (LS9807MB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1998 R/V Lone Star survey collected CHIRP data and cores in Mobile Bay, Alabama. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in West Bay (west of Galveston Bay), Texas, acquired by the R/V Lone Star in 1999 (LS99WB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1999 R/V Lone Star survey collected CHIRP data in West Bay (west of Galveston Bay), Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between. DOI: 10.1594/IEDA/500189
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CHIRP data collected in West Bay (west of Galveston Bay), Texas, acquired by the R/V Lone Star in 1999 (LS99WB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1999 R/V Lone Star survey collected CHIRP data in West Bay (west of Galveston Bay), Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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CHIRP data collected in West Bay (west of Galveston Bay), Texas, acquired by the R/V Lone Star in 1999 (LS99WB)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this 1999 R/V Lone Star survey collected CHIRP data in West Bay (west of Galveston Bay), Texas. The objectives were to study the evolution of the sediment supply. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). CHIRP navigation was supplied by a line log correlating time to latitude/longitude with navigation interpolated to the shots in between.
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Single channel seismic field data from the east Texas mid-outer shelf and upper slope, acquired by the R/V Lone Star in 1991-1992 (LSOS9192)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this project used high-resolution single-channel seismic data collected by the R/V Lone Star during the summers of 1991 and 1992 on the east Texas mid-outer shelf and upper slope. The objectives were to study the evolution of the sediment suppy in the Trinity-Sabine incised valley system during the last glacial-eustatic sea level fall and rise and to study the associated distribution of sandy facies. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM). DOI: 10.1594/IEDA/500162
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Single channel seismic field data from the east Texas mid-outer shelf and upper slope, acquired by the R/V Lone Star in 1991-1992 (LSOS9192)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this project used high-resolution single-channel seismic data collected by the R/V Lone Star during the summers of 1991 and 1992 on the east Texas mid-outer shelf and upper slope. The objectives were to study the evolution of the sediment suppy in the Trinity-Sabine incised valley system during the last glacial-eustatic sea level fall and rise and to study the associated distribution of sandy facies. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM).
View Data >

Single channel seismic field data from the east Texas mid-outer shelf and upper slope, acquired by the R/V Lone Star in 1991-1992 (LSOS9192)
Author(s): Anderson, John
Description: Funded by a Rice University consortium of petroleum companies, this project used high-resolution single-channel seismic data collected by the R/V Lone Star during the summers of 1991 and 1992 on the east Texas mid-outer shelf and upper slope. The objectives were to study the evolution of the sediment suppy in the Trinity-Sabine incised valley system during the last glacial-eustatic sea level fall and rise and to study the associated distribution of sandy facies. Data archiving funded by the U.S. Bureau of Ocean Energy Management (BOEM).
View Data >

Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk). DOI: 10.1594/IEDA/500163
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Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk).
View Data >

Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk).
View Data >

Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk). DOI: 10.1594/IEDA/500163
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Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk).
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Ocean bottom seismometer data in the Cayman Trough, Caribbean Sea, acquired during FS Meteor expedition M115 (2015)
Author(s): vanAvendonk, Harm
Description: This 2015 FS Meteor survey collected ocean bottom seismograph data in the Cayman Trough, Caribbean Sea, as part of a joint US-German-UK project. The goal was to investigate the seismic structure of the Mid-Cayman Spreading Center to determine the extent to which magmatism contributes to crustal structure of an ultra-slow oceanic rift segment. The two main ideas to be addressed were (1) Whether the MCSC hosts oceanic core complexes of exhumed crustal or mantle materials, and (2) Whether crustal thickness variations in the MCSC reflect inhibition of magmatism as the spreading-segment ends are approached. Funding for this project was obtained from the U.S. National Science Foundation under grant OCE-1356895 to UT Austin, from the German Research Foundation (DFG), and from the British Natural Environment Research Council (NERC) under grant NE/K011162/1 to Durham University. The wide-angle seismic data were recorded with instruments from UTIG and GEOMAR, as well as NERC's Ocean-Bottom Instrumentation Facility [Minshull et al., 2005]. The seismic data used in this study will be made available at the Academic Seismic Portal at UTIG (www-udc.ig. utexas.edu/sdc), the World Data Center PANGAEA (www.pangaea.de), and the British Oceanographic Data Centre (www.bodc.ac.uk).
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Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Carbotte, Suzanne
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. DOI: 10.1594/IEDA/500019
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Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Carbotte, Suzanne
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways.
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Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Carbotte, Suzanne
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways.
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Canales, JuanPablo
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872. DOI: 10.1594/IEDA/500020
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Canales, JuanPablo
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872.
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Canales, JuanPablo
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872.
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Marjanovic, Milena
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872. DOI: 10.1594/IEDA/500205
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Marjanovic, Milena
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872.
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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Author(s): Marjanovic, Milena
Description: This 3D multichannel seismic reflection study on board the Langseth sought to obtain geometrically correct images of the magma system using 3D migration processing. The goal was to obtain 3D seismic data that could be used to derive a detailed map of layer 2A and estimates of the crustal velocity field that can be interpreted in terms of porosity and used to map potential fluid pathways. Funding was provided by NSF grants OCE-0327885 and OCE-0327872.
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Ocean bottom seismometer data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Christeson, Gail
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan. DOI: 10.1594/IEDA/500022
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Ocean bottom seismometer data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Christeson, Gail
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan.
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Ocean bottom seismometer data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Christeson, Gail
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan.
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Processed multichannel seismic data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Gulick, Sean
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan. DOI: 10.1594/IEDA/500023
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Processed multichannel seismic data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Gulick, Sean
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan.
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Processed multichannel seismic data off Alaska, acquired during R/V Marcus G. Langseth expedition MGL0814 (2008)
Author(s): Gulick, Sean
Description: The 2008 STEEP (ST. Elias Erosion/tectonics Project) Langseth cruise was part of a multi-disciplinary study to address the evolution of the highest coastal mountain range on Earth - the St. Elias Mountains of southern Alaska and northwestern Canada. The primary objectives for the marine seismic portion of STEEP include are threefold: 1) to image the offshore primary faults within and on the boundaries of the Yakutat Block, 2) to measure the velocity and thickness of the Yakutat crust, and 3) to image the sedimentary cover on the Yakutat Shelf and the sediments that make up the proximal part of the Surveyor Fan.
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0905 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the first of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). The main objective was to study the Taiwan orogeny. DOI: 10.1594/IEDA/500024
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0905 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the first of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). The main objective was to study the Taiwan orogeny.
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0905 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the first of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). The main objective was to study the Taiwan orogeny.
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0906 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the second of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main objective to study the Taiwan orogen, this leg focused on providing seismic source points to OBSs and land instruments as well as recording MCS data. DOI: 10.1594/IEDA/500025
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0906 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the second of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main objective to study the Taiwan orogen, this leg focused on providing seismic source points to OBSs and land instruments as well as recording MCS data.
View Data >

Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0906 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the second of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main objective to study the Taiwan orogen, this leg focused on providing seismic source points to OBSs and land instruments as well as recording MCS data.
View Data >

Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0908 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the fourth of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main goals were to acquire OBS data along the primary TAIGER transects T1 and T2 south of Taiwan and to acquire MCS, OBS, and potential field data across the poorly-surveyed northwestern portion of the Philippine Sea tectonic plate. 91 OBS stations were deployed during this cruise. DOI: 10.1594/IEDA/500026
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0908 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the fourth of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main goals were to acquire OBS data along the primary TAIGER transects T1 and T2 south of Taiwan and to acquire MCS, OBS, and potential field data across the poorly-surveyed northwestern portion of the Philippine Sea tectonic plate. 91 OBS stations were deployed during this cruise.
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Processed multichannel seismic data off Taiwan, acquired during R/V Marcus G. Langseth expedition MGL0908 (2009) as part of the Taiwan Integrated GEodyamics Research project (TAIGER)
Author(s): McIntosh, Kirk
Description: This was the fourth of four expeditions that surveyed the northern Philippine Sea and the area around Taiwan in support of the TAIGER project, a collaborative project between U.S. and Taiwanese scientists. Legs MGL0905, MGL0906, and MGL0908 used the seismic source array on the R/V Langseth to acquire deep-penetration seismic reflection data and to provide seismic source signals to be recorded by ocean bottom seismographs (OBSs) and seismic instruments on land in Taiwan. The OBSs which recorded the seismic signals during these legs were deployed by various Taiwanese ships and operated by Taiwanese groups and an OBS group from Scripps Institution of Oceanography (the U.S. OBS pool). Leg MGL0907 was dedicated to recovering broadband OBSs, previously deployed in May 2008 (cruise MGLN-38MV of the R/V Melville). Its main goals were to acquire OBS data along the primary TAIGER transects T1 and T2 south of Taiwan and to acquire MCS, OBS, and potential field data across the poorly-surveyed northwestern portion of the Philippine Sea tectonic plate. 91 OBS stations were deployed during this cruise.
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Processed 3D volume of multi-channel seismic data offshore western Costa Rica acquired during the R/V Marcus G. Langseth expedition MGL1106 (2011) as part of the Costa Rica Seismogenesis Project (CRISP)
Author(s): Bangs, Nathan
Description: An international collaboration with scientists from Spain, Germany, Costa Rica and the United States, this 2011 R/V Marcus G. Langseth survey collected MCS data along the southern Costa Rica subduction zone as part of the Costa Rica Seismogenesis Project (CRISP). The purpose was to examine changes in structural and physical properties using 3D seismic imaging. Funded by NSF (grants OCE-0851380 and OCE-0851529). DOI: 10.1594/IEDA/500204
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Processed 3D volume of multi-channel seismic data offshore western Costa Rica acquired during the R/V Marcus G. Langseth expedition MGL1106 (2011) as part of the Costa Rica Seismogenesis Project (CRISP)
Author(s): Bangs, Nathan
Description: An international collaboration with scientists from Spain, Germany, Costa Rica and the United States, this 2011 R/V Marcus G. Langseth survey collected MCS data along the southern Costa Rica subduction zone as part of the Costa Rica Seismogenesis Project (CRISP). The purpose was to examine changes in structural and physical properties using 3D seismic imaging. Funded by NSF (grants OCE-0851380 and OCE-0851529).
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Processed 3D volume of multi-channel seismic data offshore western Costa Rica acquired during the R/V Marcus G. Langseth expedition MGL1106 (2011) as part of the Costa Rica Seismogenesis Project (CRISP)
Author(s): Bangs, Nathan
Description: An international collaboration with scientists from Spain, Germany, Costa Rica and the United States, this 2011 R/V Marcus G. Langseth survey collected MCS data along the southern Costa Rica subduction zone as part of the Costa Rica Seismogenesis Project (CRISP). The purpose was to examine changes in structural and physical properties using 3D seismic imaging. Funded by NSF (grants OCE-0851380 and OCE-0851529).
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Ocean bottom seismometer (OBS) data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Christeson, Gail
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans. DOI: 10.1594/IEDA/500040
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Ocean bottom seismometer (OBS) data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Christeson, Gail
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans.
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Ocean bottom seismometer (OBS) data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Christeson, Gail
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans.
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Processed multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Gulick, Sean
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans. DOI: 10.1594/IEDA/500039
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Processed multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Gulick, Sean
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans.
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Processed multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL11109 (2011)
Author(s): Gulick, Sean
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans.
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Multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL1109 (2011), re-processed in 2015
Author(s): Sliter, Ray
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans. Funded by the United States Geological Survey. DOI: 10.1594/IEDA/500054
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Multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL1109 (2011), re-processed in 2015
Author(s): Sliter, Ray
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans. Funded by the United States Geological Survey.
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Multi-channel seismic data in the Gulf of Alaska acquired during R/V Marcus G. Langseth expedition MGL1109 (2011), re-processed in 2015
Author(s): Sliter, Ray
Description: This R/V Langseth expedition to the Gulf of Alaska was funded through the USGS by the United States Extended Continental Shelf program to assess potential US claims under the Convention on the Law of the Sea. The survey objectives were to investigate the thickness of the sediments in the distal Surveyor and Baranof fans. Funded by the United States Geological Survey.
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Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Shillington, Donna
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614. DOI: 10.1594/IEDA/500169
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Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Shillington, Donna
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614.
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Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Shillington, Donna
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614.
View Data >

Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Becel, Anne
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614. DOI: 10.1594/IEDA/500169
View Data >

Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Becel, Anne
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614.
View Data >

Processed multichannel seismic data along the the Aleutian Trench, acquired by the R/V Marcus G. Langseth (MGL1110) in 2011 as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program
Author(s): Becel, Anne
Description: This 2011 R/V Langseth expedition surveyed the Aleutian Trench as part of the ALEUT (Alaska Langseth Experiment to Understand the megaThrust) program. The objective was to acquire multichannel and wide angle reflection data over a large portion of the Alaska-Aleutian subduction zone in order to locate the downdip limit of the seismogenic zone. Funded by NSF grant OCE-0926614.
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Ocean bottom seismometer (OBS) data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Christeson, Gail
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S. DOI: 10.1594/IEDA/500057
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Ocean bottom seismometer (OBS) data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Christeson, Gail
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S.
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Ocean bottom seismometer (OBS) data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Christeson, Gail
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S.
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Processed multi-channel seismic data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Sliter, Ray
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S. DOI: 10.1594/IEDA/500056
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Processed multi-channel seismic data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Sliter, Ray
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S.
View Data >

Processed multi-channel seismic data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): Sliter, Ray
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S.
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Sonobuoy seismic data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes sonobuoy data. DOI: 10.1594/IEDA/500254
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Sonobuoy seismic data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes sonobuoy data.
View Data >

Sonobuoy seismic data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes sonobuoy data.
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Processed near-trace strips of the multichannel seismic data across the transition from the Chukchi Shelf to the Chukchi Borderland, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. This data set consists of near-trace (trace=468) strips of the seismic data. Funding was from NSF grant ARC09-09568. DOI: 10.1594/IEDA/500037
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Processed near-trace strips of the multichannel seismic data across the transition from the Chukchi Shelf to the Chukchi Borderland, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. This data set consists of near-trace (trace=468) strips of the seismic data. Funding was from NSF grant ARC09-09568.
View Data >

Processed near-trace strips of the multichannel seismic data across the transition from the Chukchi Shelf to the Chukchi Borderland, acquired during the R/V Marcus G. Langseth expedition MGL1112 (2011)
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. This data set consists of near-trace (trace=468) strips of the seismic data. Funding was from NSF grant ARC09-09568.
View Data >

Processed MCS data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes processed MCS data. DOI: 10.1594/IEDA/500253
View Data >

Processed MCS data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes processed MCS data.
View Data >

Processed MCS data on the Chukchi Shelf and Chukchi Borderland, Arctic Ocean, acquired by the R/V Marcus G. Langseth in 2011 (MGL1112).
Author(s): Coakley, Bernard
Description: This 2011 R/V Langseth expedition collected MCS data across the transition from the Chukchi Shelf to the Chukchi Borderland as part of the project: Plate Boundaries around the Chukchi Borderland. The goals were to image the transition between these two continental blocks in order to constrain the history and timing of relative motion between them and to establish the time stratigraphy along seismic profiles. The survey collected multichannel seismic reflection data and sonobuoy data. This dataset includes processed MCS data.
View Data >

CHIRP seismic data between Hawaii and the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053. DOI: 10.1594/IEDA/500073
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CHIRP seismic data between Hawaii and the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053.
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CHIRP seismic data between Hawaii and the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053.
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Processed multichannel seismic data on the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053. DOI: 10.1594/IEDA/500072
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Processed multichannel seismic data on the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053.
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Processed multichannel seismic data on the Line Island Ridge, North Pacific Ocean, acquired during the R/V Marcus G. Langseth survey MGL1208 (2012)
Author(s): Lyle, Mitchell
Description: This 2012 R/V Langseth survey collected MCS data, 3.5 kHz single channel seismic reflection data, multibeam bathymetric data, multi-cores, gravity cores, and piston cores on the Line Island Ridge in the Pacific Ocean. The goals included collecting data that would capture paleooceanographic and paleoclimatic changes as recorded in sediment. Funded by NSF grant 1159053.
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Pre-stack depth migrated multi-channel seismic images and velocity models of the sediment section near the Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Author(s): Han, Shuoshuo
Description: This dataset contains the pre-stack depth-migrated MCS data along two transects across the Cascadia deformation front, offshore central Oregon near 44.6?N and Washington near 47.4?N acquired during the 2012 R/V Langseth survey. The seismic reflection images and seismic velocity of the two transects reveal contrasting deformation styles and consolidation states of the sediment section offshore central Oregon and Washington. Funded by NSF grants OCE10-29411 and 1457221. DOI: 10.1594/IEDA/500248
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Pre-stack depth migrated multi-channel seismic images and velocity models of the sediment section near the Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Author(s): Han, Shuoshuo
Description: This dataset contains the pre-stack depth-migrated MCS data along two transects across the Cascadia deformation front, offshore central Oregon near 44.6?N and Washington near 47.4?N acquired during the 2012 R/V Langseth survey. The seismic reflection images and seismic velocity of the two transects reveal contrasting deformation styles and consolidation states of the sediment section offshore central Oregon and Washington. Funded by NSF grants OCE10-29411 and 1457221.
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Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Author(s): Han, Shuoshuo
Description: This dataset contains the time-migrated MCS data along two ridge-to-trench transects across the Juan de Fuca (JdF) plate, from Endeavour Ridge to offshore Washington state and from Axial Volcano to offshore Oregon state, and one 400 km-long trench-parallel transect extending from 44.3N to 47.8N acquired during the 2012 R/V Langseth survey. The seismic reflection images of the two ridge-to-trench transects reveal the crustal structure of the JdF plate, distribution and extent of faults across the plate interior as the crust ages and near the deformation front in response to subduction bending, and a series of distinctive, ridgeward-dipping (20-40 degrees) lower crustal reflections in ~6-8 Ma crust along both transects. The trench-parallel transect characterize the along-strike structural variations of the sediment section and the JdF plate prior to subduction, in particular the structures associated with propagator wakes, a seamount, and four major strike-slip faults. Funded by NSF grants OCE10-29411. DOI: 10.1594/IEDA/500069
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Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Author(s): Han, Shuoshuo
Description: This dataset contains the time-migrated MCS data along two ridge-to-trench transects across the Juan de Fuca (JdF) plate, from Endeavour Ridge to offshore Washington state and from Axial Volcano to offshore Oregon state, and one 400 km-long trench-parallel transect extending from 44.3N to 47.8N acquired during the 2012 R/V Langseth survey. The seismic reflection images of the two ridge-to-trench transects reveal the crustal structure of the JdF plate, distribution and extent of faults across the plate interior as the crust ages and near the deformation front in response to subduction bending, and a series of distinctive, ridgeward-dipping (20-40 degrees) lower crustal reflections in ~6-8 Ma crust along both transects. The trench-parallel transect characterize the along-strike structural variations of the sediment section and the JdF plate prior to subduction, in particular the structures associated with propagator wakes, a seamount, and four major strike-slip faults. Funded by NSF grants OCE10-29411.
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Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Author(s): Han, Shuoshuo
Description: This dataset contains the time-migrated MCS data along two ridge-to-trench transects across the Juan de Fuca (JdF) plate, from Endeavour Ridge to offshore Washington state and from Axial Volcano to offshore Oregon state, and one 400 km-long trench-parallel transect extending from 44.3N to 47.8N acquired during the 2012 R/V Langseth survey. The seismic reflection images of the two ridge-to-trench transects reveal the crustal structure of the JdF plate, distribution and extent of faults across the plate interior as the crust ages and near the deformation front in response to subduction bending, and a series of distinctive, ridgeward-dipping (20-40 degrees) lower crustal reflections in ~6-8 Ma crust along both transects. The trench-parallel transect characterize the along-strike structural variations of the sediment section and the JdF plate prior to subduction, in particular the structures associated with propagator wakes, a seamount, and four major strike-slip faults. Funded by NSF grants OCE10-29411.
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Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Holbrook, W., Steven
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095. DOI: 10.1594/IEDA/500038
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Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Holbrook, W., Steven
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095.
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Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Holbrook, W., Steven
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095.
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Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Peterson, Dana
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095. DOI: 10.1594/IEDA/500038
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Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Peterson, Dana
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095.
View Data >

Processed multi-channel seismic data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Author(s): Peterson, Dana
Description: Part of the COAST (Cascadia Open-Access Seismic Transects) project, this 2012 R/V Langseth cruise served as an open-access, open-participation 2D seismic survey of the Cascadia subduction margin off Grays Harbor, Washington, USA, collecting data that will provide background information for siting and planning any future 3D work on this part of the margin. The objectives were to image the plate boundary, to identify downdip variations in the character of subduction thrust associated with seismic rupture, to characterize the subduction interface, and to quantify pore fluid pressure, fluid budgets, and upstream inputs to the ETS zone. Funded by NSF grants OCE-1150628, 1153563, 1147762, 1147841, and 1149095.
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Processed Multi-Channel Seismic Data from the Galicia S Detachment, Northern Atlantic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1307 (2013)
Author(s): Sawyer, Dale
Description: A cooperative project between the U.S., U.K., Germany, Spain, and Portugal, this 2013 two-ship seismic experiment surveyed the Galicia Bank region off Iberia. F.S. Poseidon tended the OBS instruments while R/V Marcus G. Langseth fired the airguns. The goal was to collect data necessary to study the rifted continental to oceanic crust transition in the Deep Galicia Basin west of Spain. Workstation Loading Information (mgl1307.procInfo.pdf), rms velocity field (mgl1307.PSTM_Rms.segy) and eta parameter for VTI anisotropy (mgl1307.PSTM_Eta.segy) are available as a Related Documents. Funding was provided by the U.S. NSF (grants OCE10-31769, OCE10-30650, and OCE10-31769), the U.K. Natural Environmental Research Council (grants (NE/E016502/1 and NE/E015883/1), and the GEOMAR Helmholtz Centre for Ocean Research. DOI: 10.1594/IEDA/500151
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Processed Multi-Channel Seismic Data from the Galicia S Detachment, Northern Atlantic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1307 (2013)
Author(s): Sawyer, Dale
Description: A cooperative project between the U.S., U.K., Germany, Spain, and Portugal, this 2013 two-ship seismic experiment surveyed the Galicia Bank region off Iberia. F.S. Poseidon tended the OBS instruments while R/V Marcus G. Langseth fired the airguns. The goal was to collect data necessary to study the rifted continental to oceanic crust transition in the Deep Galicia Basin west of Spain. Workstation Loading Information (mgl1307.procInfo.pdf), rms velocity field (mgl1307.PSTM_Rms.segy) and eta parameter for VTI anisotropy (mgl1307.PSTM_Eta.segy) are available as a Related Documents. Funding was provided by the U.S. NSF (grants OCE10-31769, OCE10-30650, and OCE10-31769), the U.K. Natural Environmental Research Council (grants (NE/E016502/1 and NE/E015883/1), and the GEOMAR Helmholtz Centre for Ocean Research.
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Processed Multi-Channel Seismic Data from the Galicia S Detachment, Northern Atlantic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1307 (2013)
Author(s): Sawyer, Dale
Description: A cooperative project between the U.S., U.K., Germany, Spain, and Portugal, this 2013 two-ship seismic experiment surveyed the Galicia Bank region off Iberia. F.S. Poseidon tended the OBS instruments while R/V Marcus G. Langseth fired the airguns. The goal was to collect data necessary to study the rifted continental to oceanic crust transition in the Deep Galicia Basin west of Spain. Workstation Loading Information (mgl1307.procInfo.pdf), rms velocity field (mgl1307.PSTM_Rms.segy) and eta parameter for VTI anisotropy (mgl1307.PSTM_Eta.segy) are available as a Related Documents. Funding was provided by the U.S. NSF (grants OCE10-31769, OCE10-30650, and OCE10-31769), the U.K. Natural Environmental Research Council (grants (NE/E016502/1 and NE/E015883/1), and the GEOMAR Helmholtz Centre for Ocean Research.
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Onshore/offshore seismometer (OOS) data, off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), land seismographs recorded the airgun shots from the 2014 R/V Langseth expedition as it collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The data are in conventional SEG-Y format. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310. DOI: 10.1594/IEDA/500018
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Onshore/offshore seismometer (OOS) data, off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), land seismographs recorded the airgun shots from the 2014 R/V Langseth expedition as it collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The data are in conventional SEG-Y format. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310.
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Processed multichannel seismic data off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): Shillington, Donna
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), this 2014 R/V Langseth expedition collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310. DOI: 10.1594/IEDA/500013
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Processed multichannel seismic data off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): Shillington, Donna
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), this 2014 R/V Langseth expedition collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310.
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Processed multichannel seismic data off North Carolina and Virginia, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM)
Author(s): Shillington, Donna
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), this 2014 R/V Langseth expedition collected MCS data off North Carolina and Virginia while the R/V Endeavor collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE-1347498, OCE-1348454, OCE-1348124, OCE-1348342, OCE-1348228, and OCE-1347310.
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Broadband ocean bottom seismometer (BBOBS) data, off North Carolina, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM CSE)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), broadband ocean bottom seismometers (BBOBS) were deployed and recovered during R/V Endeavor cruises EN537 and EN544. This experiment augments the Earthscope Transportable Array (TA) with 30 broadband ocean bottom seismometers (OBS) spanning a 400 x 500 km area offshore North Carolina, with three addition onshore broadband stations on the Outer Banks to span the gap between the TA and the OBS network. The seismometers recorded the airgun shots from the 2014 R/V Langseth expedition (MGL1408) as it collected MCS data off North Carolina and Virginia while the R/V Endeavor (EN546) collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE13-47498, OCE13-48454, OCE13-48124, OCE13-48342, OCE13-48228, and OCE13-47310. Notes: Only the geophone part (not hydrophone) of the data were archived. Data from BBOBS station B01 were not archived. The data in this dataset are in conventional SEG-Y format. All of the ENAM seismic data that has been archived as SEED at the IRIS DMC has been assigned a separate DOI and can be accessed via the landing page, http://www.fdsn.org/networks/detail/YO_2014/ . DOI: 10.1594/IEDA/500110
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Broadband ocean bottom seismometer (BBOBS) data, off North Carolina, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM CSE)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), broadband ocean bottom seismometers (BBOBS) were deployed and recovered during R/V Endeavor cruises EN537 and EN544. This experiment augments the Earthscope Transportable Array (TA) with 30 broadband ocean bottom seismometers (OBS) spanning a 400 x 500 km area offshore North Carolina, with three addition onshore broadband stations on the Outer Banks to span the gap between the TA and the OBS network. The seismometers recorded the airgun shots from the 2014 R/V Langseth expedition (MGL1408) as it collected MCS data off North Carolina and Virginia while the R/V Endeavor (EN546) collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE13-47498, OCE13-48454, OCE13-48124, OCE13-48342, OCE13-48228, and OCE13-47310. Notes: Only the geophone part (not hydrophone) of the data were archived. Data from BBOBS station B01 were not archived. The data in this dataset are in conventional SEG-Y format. All of the ENAM seismic data that has been archived as SEED at the IRIS DMC has been assigned a separate DOI and can be accessed via the landing page, http://www.fdsn.org/networks/detail/YO_2014/ .
View Data >

Broadband ocean bottom seismometer (BBOBS) data, off North Carolina, acquired during R/V Marcus G. Langseth expedition MGL1408 (2014) as part of the Eastern North America Community Seismic Experiment (ENAM CSE)
Author(s): vanAvendonk, Harm
Description: Part of the Eastern North America Community Seismic Experiment (ENAM), broadband ocean bottom seismometers (BBOBS) were deployed and recovered during R/V Endeavor cruises EN537 and EN544. This experiment augments the Earthscope Transportable Array (TA) with 30 broadband ocean bottom seismometers (OBS) spanning a 400 x 500 km area offshore North Carolina, with three addition onshore broadband stations on the Outer Banks to span the gap between the TA and the OBS network. The seismometers recorded the airgun shots from the 2014 R/V Langseth expedition (MGL1408) as it collected MCS data off North Carolina and Virginia while the R/V Endeavor (EN546) collected OBS data. The goal was to collect data to image geological structures beneath the seafloor to learn about the evolution of continental margins and their geohazards. Funding was provided by NSF grants OCE13-47498, OCE13-48454, OCE13-48124, OCE13-48342, OCE13-48228, and OCE13-47310. Notes: Only the geophone part (not hydrophone) of the data were archived. Data from BBOBS station B01 were not archived. The data in this dataset are in conventional SEG-Y format. All of the ENAM seismic data that has been archived as SEED at the IRIS DMC has been assigned a separate DOI and can be accessed via the landing page, http://www.fdsn.org/networks/detail/YO_2014/ .
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Processed MCS (PSTM) data from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise, South Atlantic Ocean, acquired by the R/V Marcus G. Langseth in 2016 (MGL1601)
Author(s): Estep, Justin
Description: This 2016 R/V Langseth collected seismic reflection and refraction data along a single flowline from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise in support of the Crustal Reflectivity Experiment Southern Transect (CREST) project. 5 crossline profiles (isochrons) corresponding with the OBS lines, and 2 extra lines crossing (normal to) the ridge were also acquired. An IODP site survey, the objectives included studying the fundamental structure and evolution of oceanic crust, comparing the seismic structure versus the lithology. DOI: 10.1594/IEDA/500255
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Processed MCS (PSTM) data from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise, South Atlantic Ocean, acquired by the R/V Marcus G. Langseth in 2016 (MGL1601)
Author(s): Estep, Justin
Description: This 2016 R/V Langseth collected seismic reflection and refraction data along a single flowline from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise in support of the Crustal Reflectivity Experiment Southern Transect (CREST) project. 5 crossline profiles (isochrons) corresponding with the OBS lines, and 2 extra lines crossing (normal to) the ridge were also acquired. An IODP site survey, the objectives included studying the fundamental structure and evolution of oceanic crust, comparing the seismic structure versus the lithology.
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Processed MCS (PSTM) data from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise, South Atlantic Ocean, acquired by the R/V Marcus G. Langseth in 2016 (MGL1601)
Author(s): Estep, Justin
Description: This 2016 R/V Langseth collected seismic reflection and refraction data along a single flowline from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise in support of the Crustal Reflectivity Experiment Southern Transect (CREST) project. 5 crossline profiles (isochrons) corresponding with the OBS lines, and 2 extra lines crossing (normal to) the ridge were also acquired. An IODP site survey, the objectives included studying the fundamental structure and evolution of oceanic crust, comparing the seismic structure versus the lithology.
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CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855. DOI: 10.1594/IEDA/500060
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CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855.
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Raw Multi-Channel Seismic Shot Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855. DOI: 10.1594/IEDA/500058
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Ocean bottom seismometer (OBS) data in the Bering Sea acquired during R/V Marcus G. Langseth expedition MGL11111 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2011 R/V Langseth survey of the Bering Sea was part of the U.S Extended Continental Shelf Project (http://continentalshelf.gov/) to establish the full extent of the U.S. continental shelf, consistent with international law. This particular leg used marine geophysics, collecting MCS and OBS data, in the Bering Sea for the purpose of determining geologic framework, crustal nature and sediment thickness within and beyond the U.S. EEZ, from 2000m isobath (approx.) to 350 nm from the territorial baselines. Funded by the U.S.G.S.
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Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855. DOI: 10.1594/IEDA/500059
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855.
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV08 (2008)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: This 2008 cruise on the M/V Strong, a collaborative effort between the University of Memphis and University of Texas at Austin, collected high-resolution seismic reflection data and CHIRP data along the Mississippi River, from Helena, Arkansas, to Caruthersville, Missouri. It was followed by two more field seasons in 2010 and 2011. It has been proposed that the seismicity in the New Madrid seismic zone is either 1) episodic; 2) very young (at least in its present incarnation); or 3) migrates throughout a broad region at the continental or regional scale. The purpose of the seismic acquisition was to illuminate the shallow section and provide images of the Mississippi river sediments and of the suspected faults concealed under the subdued topography, providing detailed information on the partitioning of the deformation among key structures beyond the limit of the New Madrid seismic zone that would enable the PIs to test the various hypotheses concerning the zone. Funded by NSF grant 0738855.
View Data >

CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant0948619. DOI: 10.1594/IEDA/500063
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CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant0948619.
View Data >

Raw Multi-Channel Seismic Shot Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619. DOI: 10.1594/IEDA/500061
View Data >

Raw Multi-Channel Seismic Shot Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619. DOI: 10.1594/IEDA/500062
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV10 (2010)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase II (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas at Austin, this 2010 survey and the subsequent 2011 survey (MISSRIV11) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant0948619. DOI: 10.1594/IEDA/500066
View Data >

CHIRP Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant0948619.
View Data >

Raw Multi-Channel Seismic Shot Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619. DOI: 10.1594/IEDA/500064
View Data >

Raw Multi-Channel Seismic Shot Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619. DOI: 10.1594/IEDA/500065
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

Processed Multi-Channel Seismic Data from the Mississippi River acquired during R/V Strong survey MISSRIV11 (2011)
Author(s): McIntosh, Kirk; Magnani, M, Beatrice; Waldron, Brian
Description: Phase III (see MISSRIV08 for Phase I) of a collaborative effort between the University of Memphis and University of Texas previous 2010 survey (MISSRIV10) on the M/V Strong collected high-resolution seismic reflection data and CHIRP data along the Mississippi River. The goal was to image the New Madrid Seismic Zone active fault system and a series of inferred faults suspected to be responsible for earthquake induced liquefaction features predating the seismic activity of the New Madrid Seismic Zone. Funded by NSF grant 0948619.
View Data >

Raw CHIRP Data Off Grand Isle and in the Mississippi Canyon off Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Goff, John
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500051
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Raw CHIRP Data Off Grand Isle and in the Mississippi Canyon off Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Goff, John
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin.
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Processed 24-channel Seismic Data Off Grand Isle and in the Mississippi Canyon Off Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Saustrup, Steffen
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500055
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Processed 24-channel Seismic Data Off Grand Isle and in the Mississippi Canyon Off Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Saustrup, Steffen
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Processed 24-channel Seismic Data Off Grand Isle and in the Mississippi Canyon Off Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Saustrup, Steffen
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin.
View Data >

Processed CHIRP Data Off Grand Isle, Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Goff, John
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500052
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Processed CHIRP Data Off Grand Isle, Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Goff, John
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin.
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Processed CHIRP Data Off Grand Isle, Louisiana, acquired during R/V Manta Student Cruise MNT1101 (2011)
Author(s): Goff, John
Description: The 2011 R/V Manta survey investigated the area off Grand Isle, Louisiana. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funding was provided by the Jackson School of Geosciences, University of Texas at Austin.
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Multichannel seismic field (shot) data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500080
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Multichannel seismic field (shot) data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Raw CHIRP data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Goff, John
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500082
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Raw CHIRP data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Goff, John
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed multichannel seismic data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500081
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Processed multichannel seismic data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed multichannel seismic data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Gulick, Sean
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed CHIRP data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Goff, John
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Paradigm's Focus software was used to process the CHIRP data. Steps included: heave filtering, tide and fish depth corrections, trace equalization, and water column muting. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500083
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Processed CHIRP data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Goff, John
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Paradigm's Focus software was used to process the CHIRP data. Steps included: heave filtering, tide and fish depth corrections, trace equalization, and water column muting. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed CHIRP data off Port Aransas, Texas, acquired during the R/V Manta survey MGL1201 (2012)
Author(s): Goff, John
Description: This 2012 R/V Manta survey investigated the area off Port Aransas, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Paradigm's Focus software was used to process the CHIRP data. Steps included: heave filtering, tide and fish depth corrections, trace equalization, and water column muting. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Multichannel seismic field (shot) data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Gulick, Sean
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500084
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Multichannel seismic field (shot) data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Gulick, Sean
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Raw CHIRP data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Goff, John
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500086
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Raw CHIRP data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Goff, John
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed multichannel seismic data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Gulick, Sean
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500085
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Processed multichannel seismic data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Gulick, Sean
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed multichannel seismic data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Gulick, Sean
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed CHIRP data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Goff, John
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin. DOI: 10.1594/IEDA/500087
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Processed CHIRP data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Goff, John
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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Processed CHIRP data off Galveston, Texas, acquired during the R/V Manta survey MNT1301 (2013)
Author(s): Goff, John
Description: This 2013 R/V Manta survey investigated the area off Galveston, Texas, collecting 24-channel seismic reflection data and CHIRP data. This expedition served as part of a field course designed to provide hands-on instruction for graduate and upper-level undergraduate students in the collection and processing of marine geological and geophysical data. Funded by the Jackson School of Geosciences, University of Texas at Austin.
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CHIRP Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. DOI: 10.1594/IEDA/500029
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CHIRP Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056.
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Raw Multi-Channel Seismic Shot Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): SIO, SGG
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. DOI: 10.1594/IEDA/500027
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Raw Multi-Channel Seismic Shot Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): SIO, SGG
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056.
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Processed Multi-Channel Seismic Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. Liao and Lyle (2014) Supplemental Material is available under Download Data. DOI: 10.1594/IEDA/500028
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Processed Multi-Channel Seismic Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. Liao and Lyle (2014) Supplemental Material is available under Download Data.
View Data >

Processed Multi-Channel Seismic Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. Liao and Lyle (2014) Supplemental Material is available under Download Data.
View Data >

Processed Multi-Channel Seismic Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. Liao and Lyle (2014) Supplemental Material is available under Download Data. DOI: 10.1594/IEDA/500028
View Data >

Processed Multi-Channel Seismic Data from the eastern equatorial Pacific Ocean acquired during R/V Melville expedition MV1014 (2010)
Author(s): Lyle, Mitchell
Description: This 2010 R/V Melville survey collected multi-channel seismic reflection data, sediment cores and bathymetric data in the Panama and Peru basins (equatorial Pacific) west of South America. The objectives included collecting data that would allow the researchers to test the 230Th-normalization method to estimate sediment fluxes. Funding was provided by NSF grant OCE-0851056. Liao and Lyle (2014) Supplemental Material is available under Download Data.
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Processed multi-channel seismic data (stacks and migrations) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500032
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Processed multi-channel seismic data (stacks and migrations) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. Funding was from Southern California Edison.
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Processed multi-channel seismic data (stacks and migrations) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by University of Nevada, Reno and Scripps Institution of Oceanography. Funding was from Southern California Edison.
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Processed multi-channel seismic data (migrations processed by Geotrace) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by Geotrace. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500034
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Processed multi-channel seismic data (migrations processed by Geotrace) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by Geotrace. Funding was from Southern California Edison.
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Processed multi-channel seismic data (migrations processed by Geotrace) offshore California acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed by Geotrace. Funding was from Southern California Edison.
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Velocity files used for processing multi-channel seismic data offshore California, acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data. Funding was from Southern California Edison. DOI: 10.1594/IEDA/500033
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Velocity files used for processing multi-channel seismic data offshore California, acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data. Funding was from Southern California Edison.
View Data >

Velocity files used for processing multi-channel seismic data offshore California, acquired during R/V Melville expedition MV1316 (2013)
Author(s): Bormann, Jayne; Kent, Graham
Description: Part of the SONGS project, this 2013 R/V Melville expedition conducted a 2D shallow seismic survey of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust fault systems in the vicinity of the San Onofre Nuclear Generating Station (SONGS), offshore California. The objectives included identifying the level of activity of the Newport Inglewood/Rose Canyon and Oceanside Blind Thrust faults, including their specific locations, geometries, and type of fault. These data were processed for velocity by Geotrace and were used for processing the multi-channel seismic data. Funding was from Southern California Edison.
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Selected Processed 2-D Multi-channel Seismic Reflection Data from Lake Malawi (Nyasa) Acquired by Project PROBE (Duke University) in 1986-1987 (legacy time processing)
Author(s): Scholz, Christopher; Rosendahl, Bruce
Description: This data set is a collection of 10 time-processed structural-dip profiles acquired along the length of the Lake Malawi (Nyasa) Rift (Malawi, Tanzania, Mozambique) as part of the PROBE project (Proto-Rifts and Oceanic Basin Evolution). The data files are in SEG-Y format, 6 seconds two-way travel time record length, 4 ms sample rate. Profiles are generally oriented east-west across multiple rift segments. Data were acquired aboard R/V Nyanja, a 36-foot-long dedicated geophysical vessel transportable by cargo aircraft. Source was a single 140 cubic inch EERI airgun, or 3x40 cubic inch array of GSI sleeve guns. Streamer was a GECO custom-built 960 m active-length cable comprising 48 groups (20 m group interval); lead-in cable length varied from 250-440 m. Streamer depth was nominally 10 m and controlled a buoy suspension system. Fold coverage was nominally 24-fold. Acquisition was via Texas Instruments DFS-V, at 2 ms sample rate. Navigation was by transit satellite, radar, automatic speed log and deduced reckoning. Processed navigational data are embedded in SEG-Y trace headers. Navigational accuracy ranges from <100 m to several km in places. Every line is controlled by a minimum of two fixes and a 40-80 km line is controlled by 5-8 good fixes. Chief Scientist was Bruce R. Rosendahl. Data were recovered from 9-track tape and archived on modern media under the supervision of Christopher A. Scholz, Syracuse University. Legacy time processing at Duke University was completed with Digicon DISCO 50 software on a DEC VAX 11/750 computer, applying the following workflow: Demultiplexing, Resample, Geometry Definition, Trace Edit, Sort, Deconvolution, Filter, Velocity Analysis, Stacking, Mute, Migration, Display. Deconvolution is a predictive gap deconvolution, occasionally spiking deconvolution is used. Filtering was variable, typically a bandpass filter with a Hanning taper was employed with typical cutoffs of 6-10 Hz at the low end, and 50-55 Hz at the upper end. Some lines received time-variant filtering and occasionally notch filters were used. Select lines were subjected to a post-stack finite difference time migration routine. Funding for data collection and processing was from multiple 1980s-era oil and gas companies. DOI: 10.26022/IEDA/327533
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Seismic shot navigation data for the Malawi PROBE processed MCS files (Lake Malawi 1986-1987 survey)
Author(s): Scholz, Christopher; Rosendahl, Bruce
Description: These seismic shot navigation files accompany the processed 2-D multi-channel seismic reflection data profiles from the Lake Malawi (Nyasa) Rift (Malawi, Tanzania, Mozambique) as part of the PROBE project (Proto-Rifts and Oceanic Basin Evolution) in 1986-1987. The shot navigation files are in ASCII format and contain coordinates in UTM meters, multiplied by a factor a 100 (UTM zone 36-S). Navigation for the Malawi PROBE survey was by transit satellite, radar, automatic speed log and deduced reckoning. Navigational accuracy ranges from <100 m to several km in places. Every line is controlled by a minimum of two fixes and a 40-80 km line is controlled by 5-8 good fixes. Chief Scientist was Bruce R. Rosendahl. Funding for data collection and processing was from multiple 1980s-era oil and gas companies. DOI: 10.26022/IEDA/327534
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Bathymetric site survey gridded data in support of IODP expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Author(s): Christeson, Gail; Reece, Robert
Description: Bathymetry site survey data were acquired using a Kongsberg EM-122 system during R/V Marcus Langseth CREST cruise MGL1601 in 2016 (co-chief scientists Robert Reece and Gail Christeson). Data were processed using standard procedures with CARIS software (Quick et al., 2009). CREST bathymetric data were combined with legacy multibeam data at the ridge axis from the Global Multi-Resolution Topography synthesis (Ryan et al., 2009) using Generic Mapping Tools (Wessel et al., 2019), and all data were gridded at an interval of ~100 m (0.001° in latitude and longitude). Data are presented in Christeson et al. (2020). The data files are in GMT-compatible netCDF grid format and were generated as part of projects called Evolution of South Atlantic Oceanic Crust: A Seismic Transect; and, CREST: Crustal Reflectivity Experiment Southern Transect. Funding was provided by NSF awards OCE15-37108 and OCE15-37169. DOI: 10.26022/IEDA/327528
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Backscatter site survey gridded data in support of IODP expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Author(s): Christeson, Gail; Reece, Robert
Description: Backscatter site survey data were acquired using a Kongsberg EM-122 system during R/V Marcus Langseth CREST cruise MGL1601 in 2016 (co-chief scientists Robert Reece and Gail Christeson). Data were processed using standard procedures with CARIS software (Quick et al., 2009) and gridded at an interval of ~100 m (0.001° in latitude and longitude). Data are presented in Christeson et al. (2020). The data files are in GMT-compatible netCDF grid format and were generated as part of projects called Evolution of South Atlantic Oceanic Crust: A Seismic Transect; and, CREST: Crustal Reflectivity Experiment Southern Transect. Funding was provided by NSF awards OCE15-37108 and OCE15-37169. DOI: 10.26022/IEDA/327529
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Two-Dimensional P-Wave Velocity Models in Support of IODP Expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Author(s): Christeson, Gail; Reece, Robert
Description: Gridded P-wave velocity models for five ridge-parallel wide-angle profiles acquired with active-source shooting during R/V Marcus Langseth CREST cruise MGL1601 in 2016 (co-chief scientists Robert Reece and Gail Christeson). Detailed modeling procedures are presented in Christeson et al. (2019). Models consist of four layers: water, sediment, basement, and mantle. The netCDF grid parameters are X-units: Model distance (km); Y-units: Depth (km); Z-units: P-wave velocity (km/s). These seismic velocity models are presented in Christeson et al. (2020). The data files are in GMT-compatible netCDF grid format and were generated as part of projects called Evolution of South Atlantic Oceanic Crust: A Seismic Transect; and, CREST: Crustal Reflectivity Experiment Southern Transect. Funding was provided by NSF awards OCE15-37108 and OCE15-37169. DOI: 10.26022/IEDA/327530
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Navigation files for the P-wave velocity models of Christeson et al. (2020), South Atlantic Transect (MGL1601, CREST)
Author(s): Christeson, Gail; Reece, Robert
Description: These velocity model navigation files are for the 2-D P-wave velocity models of Christeson et al. (2020). The P-wave velocity models were generated for five ridge-parallel wide-angle profiles from data acquired with active-source shooting during R/V Marcus Langseth CREST cruise MGL1601 in 2016 (co-chief scientists Robert Reece and Gail Christeson). These velocity model navigation data files are in ASCII format and relate the model distance to (latitude, longitude) coordinates. They contain three columns: Model distance (km); Latitude (degrees); Longitude (degrees). The data files were generated as part of projects called Evolution of South Atlantic Oceanic Crust: A Seismic Transect; and, CREST: Crustal Reflectivity Experiment Southern Transect. Funding was provided by NSF awards OCE15-37108 and OCE15-37169. DOI: 10.26022/IEDA/327531
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Velocity model layer parameters for the P-wave velocity models of Christeson et al. (2020), South Atlantic Transect (MGL1601, CREST)
Author(s): Christeson, Gail; Reece, Robert
Description: These velocity model layer parameter files are for the 2-D P-wave velocity models of Christeson et al. (2020). They are in ASCII format with three columns: First column is Layer number (1=seafloor; 2=sediment-basement interface; 3=Moho); Second column is Model distance (km); Third column is Depth (km). The P-wave velocity models were generated for five ridge-parallel wide-angle profiles from data acquired with active-source shooting during R/V Marcus Langseth CREST cruise MGL1601 in 2016 (co-chief scientists Robert Reece and Gail Christeson). These velocity model layer parameter files were generated as part of projects called Evolution of South Atlantic Oceanic Crust: A Seismic Transect; and, CREST: Crustal Reflectivity Experiment Southern Transect. Funding was provided by NSF awards OCE15-37108 and OCE15-37169. DOI: 10.26022/IEDA/327532
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2020-04-01

Processed seismic data for seismic line 11 across the Santorini-Amorgos Tectonic Zone from Poseidon cruise POS338 (2006)
Author(s): Hubscher, Christian; Preine, Jonas; Schwarz, Benjamin; Bauer, Alexander
Description: In this active-source experiment at the Santorini-Amorgos Tectonic Zone, multi-channel seismic reflection data was collected during Poseidon cruise POS338 in 2006 (chief scientist Prof. Dr. Christian Hübscher, University of Hamburg). The airgun seismic source was a single G.I. gun that was used in true G.I. mode (Injector volume: 45 cubic inches; Generator volume: 105 cubic inches) producing a signal of 100 Hz main frequency. The seismic data was recorded with a 24-channel streamer of 600 m length (25 m channel spacing), and stored in SEG-Y format. The processed data files presented here are for seismic line 11 which is discussed in the Preine et al. (2020) paper. These SEG-Y data files allow the reconstruction of each step described in that paper. A short description of each file is included on the data download page and in the accompanying File Description document. Preine et al. (2020) use the faint diffracted wavefield contained in the data to calculate a depth-velocity model for depth migration. Their method works by first modelling the reflected wavefield and then subtracting it from the input-data in the zero-offset domain. The resulting Diffraction-Only section is used to (i) focus the diffractions and derive so-called diffraction-images and to (ii) calculate wavefront attributes and to perform wavefront tomography in order to arrive at a depth-velocity model. This model is manually refined in order to arrive at focused diffractions and is then used for FD depth migration. Seismic line 11 was oriented in a NW-SE direction. The line lies to the northeast of Santorini island and crosses the Santorini-Anafi basin as well as the Amorgos basin. The line is part of a wide collection of reflection seismic profiles acquired during this Poseidon cruise. This seismic survey was funded by the German Research Foundation (Deutsche Forschungsgesellschaft, DFG) with the aim to image the Santorini-Amorgos Tectonic Zone which is well known for its catastrophic volcanic eruptions, earthquakes, and tsunamis. DOI: 10.26022/IEDA/327525
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Seismic shot navigation data for seismic line 11 (ASCII format), acquired during Poseidon cruise POS338 (2006)
Author(s): Hubscher, Christian; Preine, Jonas; Schwarz, Benjamin; Bauer, Alexander
Description: In this active-source experiment at the Santorini-Amorgos Tectonic Zone, multi-channel seismic reflection data was collected during Poseidon cruise POS338 in 2006 (chief scientist Prof. Dr. Christian Hübscher, University of Hamburg). The seismic data was recorded with a 24-channel streamer of 600 m length.This data set contains the seismic shot navigation data for seismic line 11 which is discussed in the Preine et al. (2020) paper. The file is in ASCII format. Seismic line 11 was oriented in a NW-SE direction. The line lies to the northeast of Santorini island and crosses the Santorini-Anafi basin as well as the Amorgos basin. The line is part of a wide collection of reflection seismic profiles acquired during this Poseidon cruise. This seismic survey was funded by the German Research Foundation (Deutsche Forschungsgesellschaft, DFG) with the aim to image the Santorini-Amorgos Tectonic Zone which is well known for its catastrophic volcanic eruptions, earthquakes, and tsunamis. DOI: 10.26022/IEDA/327526
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Lake bed sediment temperature time series data for the HD-YLAKE project, Yellowstone Lake, 2016-2018
Author(s): Harris, Robert; Favorito, Julia
Description: This data set consists of processed sediment temperature time series from custom thermal probes deployed in and around the Stevenson Island vent field, Yellowstone Lake, Yellowstone National Park, USA. Each probe was 1 m long, 2.5 cm in diameter, and contains seven thermistors with a 10 cm spacing. The thermal probes were deployed with ROV Yogi from R/V Annie which was operated by Global Foundation for Ocean Exploration. Each thermal probe deployment was approximately for one year, from August to August. The data have been processed to convert from resistance to temperature using calibrations for each thermistor. The data files are in ASCII format and give the temperature value at each thermistor. Each data file also includes a header that defines the data columns. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR15-15283. DOI: 10.26022/IEDA/327524
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Raw navigation data (KML format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The navigation data was collected as part of a multibeam bathymetry survey in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). These raw navigation files are in KML format, one file per day, and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327523
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Gridded, processed acoustic backscatter data (KMZ format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). The processed acoustic backscatter data was gridded at resolutions of between 5m and 16m and is indicated in the file name. The data files are in KMZ format and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327522
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Gridded multibeam swath bathymetry processed data (KMZ format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). The processed bathymetry was gridded at resolutions of between 5m and 60m and is indicated in the file name. The data files are in KMZ format and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327521
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Bathymetry/backscatter survey coverage data (shapefile format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). These survey coverage files are in shapefile format and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327520
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Gridded, processed acoustic backscatter data (GeoTIFF grid format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). The processed acoustic backscatter data was gridded at resolutions of between 5m and 16m and is indicated in the file name. The data files are in GeoTIFF floating point grid raster format and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. There is one GeoTIFF file per survey area and each contains gridded acoustic backscatter data. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327519
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Gridded multibeam swath bathymetry processed data (GeoTIFF grid format) from Nautilus cruise NA097
Author(s): Norgard, Tammy; DuPreez, Cherisse; Yakgujanaas, Jaasaljuss; Rangeley, Robert; Juniper, Kim; Fundis, Allison
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during Nautilus cruise NA097 (chief scientist Tammy Norgard). The processed bathymetry was gridded at resolutions of between 5m and 60m and is indicated in the file name. The data files are in GeoTIFF floating point grid raster format and were generated as part of the NA097 Northeast Pacific Seamount Expedition project. There is one GeoTIFF file per survey area and each contains gridded bathymetry data. Funding came from the Northeast Pacific Seamount Expedition Partners: Fisheries and Oceans Canada, Council of the Haida Nation, Ocean Networks Canada, Oceana Canada. DOI: 10.26022/IEDA/327518
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Processed LiDAR intensity reflectance data for Long Island Sound from Phase II of the Long Island Sound (LIS) Benthic Habitat Priority project.
Author(s): Battista, Timothy; Sautter, Will; Husted, Rachel; Kraus, Jennifer
Description: This LiDAR intensity reflectance grid was generated to provide the LIS Mapping and Research Collaborative with a baseline model for benthic habitat classification as part of Phase II of the Long Island Sound (LIS) Benthic Habitat Priority Areas of Interest (AOI) project. The LiDAR intensity data is gridded at 1m resolution and was acquired as part of the Connecticut Topobathy LiDAR project using a Riegl VQ-820G Topobathy LiDAR system. Multibeam and LiDAR data sets were corrected, calibrated, and integrated into a seamless 32-bit raster using CARIS and ArcGIS. The LiDAR intensity reflectance grid is in GeoTIFF raster format. Funding was provided by the Long Island Sound Study and by the Connecticut Department of Energy and Environmental Protection (DEEP).
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Processed multibeam and LiDAR bathymetry data for Long Island Sound from Phase II of the Long Island Sound (LIS) Benthic Habitat Priority project.
Author(s): Battista, Timothy; Sautter, Will; Husted, Rachel; Kraus, Jennifer
Description: These integrated bathymetric grids are in GeoTIFF format were generated to provide the LIS Mapping and Research Collaborative with a baseline model for benthic habitat classification as part of Phase II of the Long Island Sound (LIS) Benthic Habitat Priority Areas of Interest (AOI) project. The GeoTIFF files in this data set contain multibeam bathymetry data and LiDAR bathymetry data that has been combined and gridded at resolutions of between 1m and 8m, depending upon depth. The resolution is given in the file name. The original Phase II data sets were surveyed by NOAA Ship Nancy Foster (R-352), NOAA Ship Thomas Jefferson, and the Navigation Response Team (NRT-5) using 400 khz Reson 7125 multibeam sonars from 2003 to 2014. In 2018, the LIS Cable Fund contracted the State University of New York (SUNY) at Stony Brook School of Marine and Atmospheric Sciences (SoMAS) to fill gaps and resurvey areas where multibeam data was not acceptable with the R/V Pritchard using 400 khz Kongsberg dual-swath EM2040C multibeam sonars in coordination with the NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch and the NOAA Integrated Ocean and Coastal Mapping (IOCM) Program. The multibeam and LiDAR data sets were corrected, calibrated, and integrated into a seamless 32-bit raster using CARIS and ArcGIS. Backscatter data was collected and mosaicked into a raster using Fledermaus Geocoder Toolbox, ArcGIS 10.4, and PCI Geomatica 2018 software. The bathymetry grids are in GeoTIFF raster format. Funding was provided by the Long Island Sound Study and by the Connecticut Department of Energy and Environmental Protection (DEEP).
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Processed acoustic backscatter data for Long Island Sound from Phase II of the Long Island Sound (LIS) Benthic Habitat Priority project.
Author(s): Battista, Timothy; Sautter, Will; Husted, Rachel; Kraus, Jennifer
Description: This integrated acoustic backscatter grid in GeoTIFF format was generated to provide the LIS Mapping and Research Collaborative with a baseline model for benthic habitat classification as part of Phase II of the Long Island Sound (LIS) Benthic Habitat Priority Areas of Interest (AOI) project. The GeoTIFF file in this data set contains acoustic backscatter data combined from different multibeam bathymetry surveys. The original Phase II data sets were surveyed by NOAA Ship Nancy Foster (R-352), NOAA Ship Thomas Jefferson, and the Navigation Response Team (NRT-5) using 400 khz Reson 7125 multibeam sonars from 2003 to 2014. In 2018, the LIS Cable Fund contracted the State University of New York (SUNY) at Stony Brook School of Marine and Atmospheric Sciences (SoMAS) to fill gaps and resurvey areas where multibeam data was not acceptable with the R/V Pritchard using 400 khz Kongsberg dual-swath EM2040C multibeam sonars in coordination with the NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch and the NOAA Integrated Ocean and Coastal Mapping (IOCM) Program. The multibeam and LiDAR data sets were corrected, calibrated, and integrated into a seamless 32-bit raster using CARIS and ArcGIS. Backscatter data was collected and mosaicked into a raster using Fledermaus Geocoder Toolbox, ArcGIS 10.4, and PCI Geomatica 2018 software. The acoustic backscatter grid is in GeoTIFF raster format. Funding was provided by the Long Island Sound Study and by the Connecticut Department of Energy and Environmental Protection (DEEP).
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2020-03-01

Magnetic anomaly processed data (PDF wiggle plots), Emperor Seamounts and Hess Rise, R/V Falkor cruise FK190726 (2019)
Author(s): Watling, Les; Smith, John
Description: These processed marine magnetic anomaly wiggle plots were derived from the magnetic anomaly grids. The magnetic surveys were conducted at the Hess Rise and Emperor Seamounts in the North Central Pacific Ocean during R/V Falkor cruise FK190726 (chief scientist Les Watling). The cruise was primarily a biogeographic study using ROV SuBastian and the surveys were designed for ROV dive site selection and multibeam gap filling when time allowed. The data set is divided into 10 sites that represent places where the magnetometer was deployed for a dedicated survey with nearly parallel lines or some other pattern. The Emperor Seamounts surveyed include Suiko (3 surveys), Yomei, Nintoku, Jingu, Annei, and Koko (from north to south, respectively). Two surveys were carried out on Hess Rise. The 11th and final file of the data set (file name containing 20190822) is a short test file acquired during the return transit and is not one of the project study sites. The image data files are in PDF format and were generated as part of a project called Deep Coral Diversity at Emperor Seamount Chain 2019. Funding was provided by a grant from Schmidt Ocean Institute (Ship, ROV, gravimeter, magnetometer) to Les Watling, PI, and from NOAA OER grant number NA16OAR0110192 (Science support) to John R. Smith, PI. DOI: 10.26022/IEDA/327357
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Magnetic anomaly processed data (ASCII format), Emperor Seamounts and Hess Rise, R/V Falkor cruise FK190726 (2019)
Author(s): Watling, Les; Smith, John
Description: These processed marine magnetic anomaly data files were derived from raw magnetic field data acquired using a Marine Magnetics Corporation SeaSPY2 magnetometer. The data set consists of space delimited line-data files of magnetic anomalies at a 1 Hz sample rate and processed using POS-MV navigation. The magnetic surveys were conducted at the Hess Rise and Emperor Seamounts in the North Central Pacific Ocean during R/V Falkor cruise FK190726 (chief scientist Les Watling). The cruise was primarily a biogeographic study using ROV SuBastian and the surveys were designed for ROV dive site selection and multibeam gap filling when time allowed. The data set is divided into 10 sites that represent places where the magnetometer was deployed for a dedicated survey with nearly parallel lines or some other pattern. The Emperor Seamounts surveyed include Suiko (3 surveys), Yomei, Nintoku, Jingu, Annei, and Koko (from north to south, respectively). Two surveys were carried out on Hess Rise. The 11th and final file of the data set (file name containing 20190822) is a short test file acquired during the return transit and is not one of the project study sites. The data files are in ASCII format and were generated as part of a project called Deep Coral Diversity at Emperor Seamount Chain 2019. Funding was provided by a grant from Schmidt Ocean Institute (Ship, ROV, gravimeter, magnetometer) to Les Watling, PI, and from NOAA OER grant number NA16OAR0110192 (Science support) to John R. Smith, PI. DOI: 10.26022/IEDA/327355
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Magnetic anomaly processed data (netCDF grid format), Emperor Seamounts and Hess Rise, R/V Falkor cruise FK190726 (2019)
Author(s): Watling, Les; Smith, John
Description: These processed marine magnetic anomaly grids were derived from the processed ASCII magnetic anomaly data files and have been gridded at ~555 m resolution using a minimum-curvature algorithm, and exported as GMT grids. The magnetic surveys were conducted at the Hess Rise and Emperor Seamounts in the North Central Pacific Ocean during R/V Falkor cruise FK190726 (chief scientist Les Watling). The cruise was primarily a biogeographic study using ROV SuBastian and the surveys were designed for ROV dive site selection and multibeam gap filling when time allowed. The data set is divided into 10 sites that represent places where the magnetometer was deployed for a dedicated survey with nearly parallel lines or some other pattern. The Emperor Seamounts surveyed include Suiko (3 surveys), Yomei, Nintoku, Jingu, Annei, and Koko (from north to south, respectively). Two surveys were carried out on Hess Rise. The 11th and final file of the data set (file name containing 20190822) is a short test file acquired during the return transit and is not one of the project study sites. The data files are in GMT-compatible netCDF grid format and were generated as part of a project called Deep Coral Diversity at Emperor Seamount Chain 2019. Funding was provided by a grant from Schmidt Ocean Institute (Ship, ROV, gravimeter, magnetometer) to Les Watling, PI, and from NOAA OER grant number NA16OAR0110192 (Science support) to John R. Smith, PI. DOI: 10.26022/IEDA/327356
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Ocean bottom seismometer (OBS) active-source raw data, Greenland Margin, acquired during the 1996 Ewing cruise EW9607 as part of the SIGMA experiment
Author(s): Holbrook, W., Steven; Larsen, Hans, Christian; Kent, Graham; Detrick, Robert; Dahl-Jensen, Trine; Kelemen, Peter; Hopper, John; Korenaga, Jun
Description: In this active-source part of the SIGMA (Seismic Investigation of the Greenland Margin) experiment, during R/V Maurice Ewing cruise EW9607, ocean bottom seismometers were deployed in a roughly northwest-southeast orientation across the eastern margin of Greenland and airguns from the ship were fired to them. These OBS raw data files are in standard SEG-Y format. Four components of the OBS data are presented and are indicated in the file names: h1 and h2 are the two horizontal components, vt is vertical, and hy is the hydrophone component. The OBS data files were generated as part of an NSF project called Deep Structure of a Hotspot Influenced Rifted Volcanic Margin: A Joint US-Danish Seismic Experiment off SE Greenland, and funding was provided by NSF award OCE94-16631. Co-chief scientists on cruise EW9607 were Steven Holbrook and Trine Dahl-Jensen. The goal of the SIGMA experiment was to make measurements of crustal thickness, velocity structure, and seismic reflectivity along the hotspot-influenced volcanic rifted margin off southeast Greenland. DOI: 10.1594/IEDA/327349
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Ocean bottom hydrophone (OBH) active-source raw data, Greenland Margin, acquired during the 1996 Ewing cruise EW9607 as part of the SIGMA experiment
Author(s): Holbrook, W., Steven; Larsen, Hans, Christian; Kent, Graham; Detrick, Robert; Dahl-Jensen, Trine; Kelemen, Peter; Hopper, John; Korenaga, Jun
Description: In this active-source part of the SIGMA (Seismic Investigation of the Greenland Margin) experiment, during R/V Maurice Ewing cruise EW9607, ocean bottom hydrophones were deployed in a roughly northwest-southeast orientation across the eastern margin of Greenland and airguns from the ship were fired to them. The OBH instruments were moored about 5m above the seafloor. These OBH raw data files are in standard SEG-Y format. They were generated as part of an NSF project called Deep Structure of a Hotspot Influenced Rifted Volcanic Margin: A Joint US-Danish Seismic Experiment off SE Greenland, and funding was provided by NSF award OCE94-16631. Co-chief scientists on cruise EW9607 were Steven Holbrook and Trine Dahl-Jensen. The goal of the SIGMA experiment was to make measurements of crustal thickness, velocity structure, and seismic reflectivity along the hotspot-influenced volcanic rifted margin off southeast Greenland. DOI: 10.1594/IEDA/327350
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Seismic shot navigation data for shooting to ocean bottom seismometers, Lesser Antilles arc, acquired during James Cook cruise JC149 Leg 3 (2017) as part of the UK NERC VOILA experiment
Author(s): Collier, Jenny; Henstock, Tim
Description: In this active-source part of the VOILA (Volatiles in the Lesser Antilles) experiment, during James Cook cruise JC149 Leg 3, short-period ocean bottom seismometers (SPOBS) were deployed on the incoming plate and airguns from the James Cook vessel were fired to them. The OBS instruments were deployed in a roughly north-south orientation along strike, approximately 300-400km east of the trench and their positions were calculated by acoustic ranging. These data files contain the seismic shot navigation data in ASCII format. Two of the files are in latitude-longiude geographic coordinates. The other two are in UTM meters (UTM zone 21N). The goal of this active-source portion of the VOILA experiment was to assess the geological structure and state of hydration of the subducting plate. The cruise report and other details may be accessed here https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/16390/. The chief scientist on Jame Cook cruise JC149 Leg 3 was Jenny Collier, and funding for the VOILA experiment was provided through a NERC multidisciplinary consortium project called Volatiles in the Lesser Antilles - VoiLA, supported by NERC award NE/K010743/1. DOI: 10.26022/IEDA/327348
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Gridded multibeam bathymetry data (netCDF grid format) of the Lesser Antilles region from VOILA cruise JC149 (2017)
Author(s): Collier, Jenny; Henstock, Tim
Description: The bathymetry was mapped with a Simrad EM120 multibeam system in April-June 2017 during Lesser Antilles VOILA cruise JC149 (chief scientist Jenny Collier). The bathymetry was edited and gridded at a resolution of about 100m. The data file is in GMT-compatible netCDF grid format suitable for import to GMT scripts. The data file was generated as part of a NERC multidisciplinary consortium project called Volatiles in the Lesser Antilles - VoiLA, funded under NERC award NE/K010743/1. DOI: 10.26022/IEDA/327345
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Gridded multibeam bathymetry data (PDF format) of the Lesser Antilles region from VOILA cruise JC149 (2017)
Author(s): Collier, Jenny; Henstock, Tim
Description: The bathymetry was mapped with a Simrad EM120 multibeam system in April-June 2017 during Lesser Antilles VOILA cruise JC149 (chief scientist Jenny Collier). The bathymetry was edited and gridded at a resolution of about 100m. The data file is in PDF image format. The data file was generated as part of a NERC multidisciplinary consortium project called Volatiles in the Lesser Antilles - VoiLA, funded under NERC award NE/K010743/1. DOI: 10.26022/IEDA/327346
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Short-period ocean bottom seismometer (SPOBS) active-source data, Lesser Antilles arc, acquired during James Cook cruise JC149 - Leg 3 (2017) as part of the UK NERC VOILA experiment
Author(s): Collier, Jenny; Henstock, Tim
Description: In this active-source part of the VOILA (Volatiles in the Lesser Antilles) experiment, during James Cook cruise JC149 Leg 3, short-period ocean bottom seismometers (SPOBS) were deployed on the incoming plate and airguns from the James Cook vessel were fired to them. The OBS instruments were deployed in a roughly north-south orientation along strike, approximately 300-400km east of the trench and their positions were calculated by acoustic ranging. The data files presented here contain the vertical geophone components in standard SEG-Y format. Corrected airgun source-receiver distances have been added to the trace headers. The goal of this active-source portion of the VOILA experiment was to assess the geological structure and state of hydration of the subducting plate. The cruise report and other details may be accessed here https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/16390/. The chief scientist on Jame Cook cruise JC149 Leg 3 was Jenny Collier, and funding for the VOILA experiment was provided through a NERC multidisciplinary consortium project called Volatiles in the Lesser Antilles - VoiLA, supported by NERC award NE/K010743/1. DOI: 10.26022/IEDA/327347
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Raw multibeam swath bathymetry data from the Quebrada-Discovery-Gofar (QDG) transform fault area acquired during R/V Thompson cruise TN214 (2007-2008)
Author(s): McGuire, Jeffrey
Description: These multibeam swath files were collected with a Kongsberg Simrad EM300 multibeam sonar swath system in Dec 207 - Jan 2008 aboard R/V Thompson cruise TN214, as part of the Quebrada-Discovery-Gofar (QDG) Transform Fault Experiment, Leg 1 - OBS Deployment (chief scientist Jeff McGuire). These raw data files are in MBSystem-compatible format (mbio format 56). The data set was generated as part of the projects called Oceanic Transform Faulting: Foreshocks, Seismic and Aseismic Slip on the Quebrada, Discovery and Gofar Transforms; and, A Seafloor Geodesy Experiment at the Discovery Transform Fault. Funding was through NSF awards OCE03-51143 and OCE02-42117. DOI: 10.26022/IEDA/327344
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High-resolution gridded multibeam bathymetry data (ASCII format) of Pacific seafloor in the region of the old ORCA OBS array (31S,158W to 38S,152W)
Author(s): Eilon, Zach
Description: The bathymetry was mapped with a Simrad EM122 multibeam system (1° x 2° system, 12 kHz swath mapping) in Nov/Dec 2019, and processed for quality control through QIMERA software while onboard the vessel. In addition to tracks between ocean bottom seismometer drop sites associated with the Old ORCA experiment (a US contribution to the PacificArray initiative), this data set contains multibeam swath passes within the field region, and on transits to/from Tahiti, and to/from a rescue at ~30S,153W. Sippican MK-21/PC-based XBT measurements were conducted at least daily to account for varying sound speed throughout the experiment, and processed through Simrad SIS software. The final bathymetric maps and grids were created using MATLAB and GMT. The data files are in ASCII format. The files with file name suffix ".xyz" are in UTM meters (zone 6 S). The files with file name suffix ".laloxyz" include geographic latitude and longitude coordinates in decimal degrees, as well as UTM meters. The "km1922_all" files contain bathymetry for the entire cruise mapped at 50 m resolution, and the "obs_array" files contain bathymetry for just the OBS array region, at 100 m resolution. The data files were generated as part of a project called Imaging small-scale convection and structure of the mantle in the south Pacific: a US contribution to international collaboration PacificArray, and Seismological Components of the MELT Experiment on the Southern East Pacific Rise. Funding was provided by NSF awards OCE16-58491, OCE16-58214 and OCE94-02375. DOI: 10.1594/IEDA/327343
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High-resolution gridded multibeam bathymetry data (netCDF grid format) of Pacific seafloor in the region of the old ORCA OBS array (31S,158W to 38S,152W)
Author(s): Eilon, Zach
Description: The bathymetry was mapped with a Simrad EM122 multibeam system (1° x 2° system, 12 kHz swath mapping) in Nov/Dec 2019, and processed for quality control through QIMERA software while onboard the vessel. In addition to tracks between ocean bottom seismometer drop sites associated with the Old ORCA experiment (a US contribution to the PacificArray initiative), this data set contains multibeam swath passes within the field region, and on transits to/from Tahiti, and to/from a rescue at ~30S,153W. Sippican MK-21/PC-based XBT measurements were conducted at least daily to account for varying sound speed throughout the experiment, and processed through Simrad SIS software. The final bathymetric maps and grids were created using MATLAB and GMT. The data files are in GMT-compatible netCDF grid format suitable for import to GMT scripts. The km1922_all.grd file contains bathymetry for the entire cruise mapped at 50 m resolution, and the obs_array.grd file contains bathymetry for just the OBS array region, at 100 m resolution. The data files were generated as part of a project called Imaging small-scale convection and structure of the mantle in the south Pacific: a US contribution to international collaboration PacificArray, and Seismological Components of the MELT Experiment on the Southern East Pacific Rise. Funding was provided by NSF awards OCE16-58491, OCE16-58214 and OCE94-02375. DOI: 10.1594/IEDA/327342
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North Gorda near-bottom processed swath bathymetry gridded data in GeoTIFF image format (2009-2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed swath bathymetry gridded data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV missions in 2009 and 2016: missions 20090810, 20160807m2, 20160807m3 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in GeoTIFF grid image format and were generated with several color ramps as indicated by the depth ranges in the file names. The AUV survey missions were conducted during 2009 R/V Zephyr cruise ZPHR389 and during 2016 R/V Rachel Carson cruises RCSN393 and RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327340
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North Gorda near-bottom processed swath bathymetry grids and images command script (2009-2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This file contains the command script that was used to generate the project-level North Gorda processed swath bathymetry gridded data sets. Those data sets were collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV missions in 2009 and 2016: missions 20090810, 20160807m2, 20160807m3 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The command script file is in ASCII format. The AUV survey missions were conducted during 2009 R/V Zephyr cruise ZPHR389 and during 2016 R/V Rachel Carson cruises RCSN393 and RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327341
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North Gorda near-bottom processed swath bathymetry gridded data in GMT-compatible netCDF format (2009-2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed swath bathymetry gridded data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV missions in 2009 and 2016: missions 20090810, 20160807m2, 20160807m3 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data file is in GMT-compatible netCDF grid format and contains processed swath bathymetry data gridded at 1m resolution. The AUV survey missions were conducted during 2009 R/V Zephyr cruise ZPHR389 and during 2016 R/V Rachel Carson cruises RCSN393 and RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327338
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North Gorda near-bottom processed swath bathymetry gridded data in ESRI ASCII format (2009-2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed swath bathymetry gridded data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV missions in 2009 and 2016: missions 20090810, 20160807m2, 20160807m3 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data file is in ESRI ASCII grid format and contains processed swath bathymetry data gridded at 1m resolution. The AUV survey missions were conducted during 2009 R/V Zephyr cruise ZPHR389 and during 2016 R/V Rachel Carson cruises RCSN393 and RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327339
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North Gorda mission 20090810 documentation (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This documentation for North Gorda MBARI Mapping AUV mission 20090810 comprises a notes file which contains a hand-entered record of the mission and includes data lists, and the processing script used to process the data sets. The files are in ASCII format, and the investigators are Dave Caress, Dave Clague, Jennifer Paduan. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327337
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North Gorda mission 20090810 near-bottom raw swath bathymetry and acoustic backscatter data (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20090810 in 2009 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 88) and contain raw swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327332
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North Gorda mission 20090810 near-bottom processed swath bathymetry and acoustic backscatter data (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20090810 in 2009 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 88) and contain processed swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327333
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North Gorda mission 20090810 map of near-bottom processed bathymetry (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda map shows processed bathymetry data for MBARI Mapping AUV mission 20090810 in 2009 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The file is in JPEG image format. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327336
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North Gorda mission 20090810 near-bottom processed CTD data (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed CTD data set was collected with a SeaBird SBE-49 FastCat system on MBARI Mapping AUV mission 20090810 in 2009 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data file is in ASCII format and contains processed conductivity, temperature, salinity, sound velocity and potential temperature data. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327335
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North Gorda mission 20090810 near-bottom processed sidescan data (2009)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed sidescan data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20090810 in 2009 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 71) and contain processed sidescan data. The AUV survey mission was conducted during the 2009 R/V Zephyr cruise ZPHR389 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327334
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North Gorda mission 20160807m3 documentation (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This documentation for North Gorda MBARI Mapping AUV mission 20160807m2 comprises a notes file which contains a hand-entered record of the mission and includes data lists, and the processing script used to process the data sets. The files are in ASCII format, and the investigators are Dave Caress, Dave Clague, Jennifer Paduan. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327331
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North Gorda mission 20160807m3 map of near-bottom processed bathymetry and AUV navigation track line (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda map shows processed bathymetry and AUV navigation track line data for MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The file is in JPEG image format. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327330
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North Gorda mission 20160807m3 near-bottom raw MVC logs data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda raw MVC logs data set was collected on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). It contains the Main Vehicle Computer log files, in binary formats. The data files are served in a tar bundle. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327329
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North Gorda mission 20160807m3 near-bottom processed sub-bottom data profile images (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data profiles are in JPEG format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327328
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North Gorda mission 20160807m3 near-bottom processed sub-bottom data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in SEG-Y format and contain processed sub-bottom data. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327327
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North Gorda mission 20160807m3 near-bottom processed sidescan data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed sidescan data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 71) and contain processed sidescan data. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327326
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North Gorda mission 20160807m3 near-bottom raw sidescan and sub-bottom data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda raw sidescan and sub-bottom data set was collected with an Edgetech 2205 sonar/sub-bottom system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in JSF MB-System-compatible format (mbio format 132) and contain raw sidescan and sub-bottom data that has not been merged with navigation. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327325
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North Gorda mission 20160807m3 near-bottom processed swath bathymetry and acoustic backscatter data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda processed swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 88) and contain processed swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327324
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North Gorda mission 20160807m3 near-bottom raw swath bathymetry and acoustic backscatter data (2016)
Author(s): Caress, David; Clague, David; Paduan, Jennifer
Description: This North Gorda raw swath bathymetry data set was collected with a Reson SeaBat 7125 multibeam sonar system on MBARI Mapping AUV mission 20160807m3 in 2016 (investigators Dave Caress, Dave Clague, Jennifer Paduan). The data files are in MB-System-compatible format (mbio format 88) and contain raw swath bathymetry and acoustic backscatter data. The AUV survey mission was conducted during the 2016 R/V Rachel Carson cruise RCSN394 (chief scientist Dave Caress). DOI: 10.1594/IEDA/327323
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top

2020-02-01

Raw Video Frame Grab Images acquired with ROV SuBastian during R/V Falkor expedition FK190726 (2019)
Author(s): Watling, Les
Description: This data set was acquired with a Subsea Systems and Inc Z70 Digital Camera on ROV SuBastian during R/V Falkor expedition FK190726 conducted in 2019 (Chief Scientist: Dr. Les Watling). These data files are of JPEG Image format and include 4K Video Frame Grab Images that have not been processed. DOI: 10.1594/IEDA/327032
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Raw Video Frame Grab Images acquired with ROV SuBastian during R/V Falkor expedition FK190831 (2019)
Author(s): Roark, Brendan
Description: This data set was acquired with a Subsea Systems and Inc Z70 Digital Camera on ROV SuBastian during R/V Falkor expedition FK190831 conducted in 2019 (Chief Scientist: Dr. Brendan Roark). These data files are of JPEG Image format and include 4K Video Frame Grab Images that have not been processed. DOI: 10.1594/IEDA/327033
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Raw Video Frame Grab Images acquired with ROV SuBastian during R/V Falkor expedition FK190612 (2019)
Author(s): Baumberger, Tamara
Description: This data set was acquired with a Subsea Systems and Inc Z70 Digital Camera on ROV SuBastian during R/V Falkor expedition FK190612 conducted in 2019 (Chief Scientist: Dr. Tamara Baumberger). These data files are of JPEG Image format and include 4K Video Frame Grab Images that have not been processed. DOI: 10.1594/IEDA/327019
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Layback-corrected towfish navigation data collected offshore Galveston, Texas (TRiPP survey, August 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed towfish navigation data set was collected in August 2018 onboard R/V Trident as part of the Trinity River Paleovalley Project (TRiPP). As the sub-bottom data was acquired, the position of the vessel was continuously determined by a differential GPS system with an antenna mounted at the stern of the ship, near the tow point. A layback correction for the ~5 m offset between the towfish and the D-GPS antenna has been applied to these navigation files. The navigation data files are in ASCII comma-separated format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326947
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Layback-corrected towfish navigation data collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed towfish navigation data set was collected in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). As the sub-bottom data was acquired, the position of the vessel was continuously determined by a differential GPS system with an antenna mounted at the stern of the ship, near the tow point. A layback correction for the ~5 m offset between the towfish and the D-GPS antenna has been applied to these navigation files. The navigation data files are in ASCII comma-separated format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326946
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Raw Video Frame Grab Images acquired with ROV SuBastian during R/V Falkor expedition FK191012 (2019)
Author(s): Phillips, Brennan
Description: This data set was acquired with a Subsea Systems and Inc Z70 Digital Camera on ROV SuBastian during R/V Falkor expedition FK191012 conducted in 2019 (Chief Scientist: Dr. Brennan Phillips). These data files are of JPEG Image format and include 4K Video Frame Grab Images that have not been processed. DOI: 10.1594/IEDA/326948
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Layback-corrected towfish navigation data collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This processed towfish navigation data set was collected in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). As the sub-bottom data was acquired, the position of the vessel was continuously determined by a differential GPS system with an antenna mounted at the stern of the ship, near the tow point. A layback correction for the ~5 m offset between the towfish and the D-GPS antenna has been applied to these navigation files. The navigation data files are in ASCII comma-separated format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326945
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ROV SuBastian Scientific Computer System (SCS) Data acquired during R/V Falkor expedition FK190831 (2019)
Author(s): Roark, Brendan
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK190831 conducted in 2019 (Chief Scientist: Dr. Brendan Roark, Investigator: Dr. Brendan Roark). These data files are of Text File (ASCII) format and include CTD, Navigation, Oxygen and Temperature data that have not been processed. DOI: 10.1594/IEDA/326847
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK191012 (2019)
Author(s): Phillips, Brennan
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK191012 conducted in 2019 (Chief Scientist: Dr. Brennan Phillips, Investigator: Dr. Brennan Phillips). These data files are of Text File (ASCII) format and include CTD, Navigation, Oxygen and Temperature data that have not been processed. DOI: 10.1594/IEDA/326849
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK190726 (2019)
Author(s): Watling, Les
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK190726 conducted at the Emperor Seamount chain in 2019 (Chief Scientist: Dr. Les Watling, Investigator: Dr. Les Watling). These data files are of Text File (ASCII) format and include CTD, Navigation, Oxygen and Temperature data that have not been processed. DOI: 10.1594/IEDA/326848
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ROV SuBastian Scientific Computer System (SCS) Data from R/V Falkor expedition FK190612 (2019)
Author(s): Baumberger, Tamara
Description: This data set was acquired with the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK190612 conducted in 2019 (Chief Scientist: Dr. Tamara Baumberger, Investigator: Dr. Tamara Baumberger). These data files are of Text File (ASCII) format and include CTD, Navigation, Oxygen Sensor, and Temperature data that have not been processed. DOI: 10.1594/IEDA/326846
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CHIRP sub-bottom profile raw full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, Aug 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in August 2018 from R/V Trident as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326842
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CHIRP sub-bottom profile processed envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, Aug 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system from R/V Trident in August 2018 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326845
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CHIRP sub-bottom profile raw envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, Aug 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system from R/V Trident in August 2018 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326844
View Data >

CHIRP sub-bottom profile processed full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, Aug 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system from R/V Trident in August 2018 as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326843
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CHIRP sub-bottom profile raw data (JSF format) collected offshore Galveston, Texas (TRiPP survey, Aug 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in Aug 2018 from R/V Trident as part of the Trinity River Paleovalley Project (TRiPP). The data files are in the EdgeTech native JSF format and contain raw sub-bottom data that has not been merged with navigation. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326829
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Google Earth Files of ROV SuBastian Dives conducted during R/V Falkor expedition FK190831 (2019)
Author(s): Roark, Brendan
Description: This data set is a product of the Schmidt Ocean Institute ROV SuBastian from R/V Falkor expedition FK190831 conducted in 2019 (Chief Scientist: Dr. Brendan Roark, Investigator: Dr. Brendan Roark). These data files are of Google Earth (KML) format and include Dive Tracks and Dive Events. DOI: 10.1594/IEDA/326840
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Event Logs from ROV SuBastian Dives conducted during R/V Falkor expedition FK190612 (2019)
Author(s): Baumberger, Tamara
Description: This data set was acquired with a Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK190612 conducted in 2019 (Chief Scientist: Dr. Tamara Baumberger, Investigator: Dr. Tamara Baumberger). These data files are of Text File (ASCII) format and include Documentation data describing sampling and dive events. DOI: 10.1594/IEDA/326830
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Event Logs from ROV SuBastian Dives conducted during R/V Falkor expedition FK190726 (2019)
Author(s): Watling, Les
Description: This data set was acquired with a Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK190726 conducted in 2019 (Chief Scientist: Dr. Les Watling, Investigator: Dr. Les Watling). These data files are of Text File (ASCII) format and include Documentation data describing sampling and dive events. DOI: 10.1594/IEDA/326831
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Event Logs from ROV SuBastian Dives conducted during R/V Falkor expedition FK190831 (2019)
Author(s): Roark, Brendan
Description: This data set was acquired with a Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK190831 conducted in 2019 (Chief Scientist: Dr. Brendan Roark, Investigator: Dr. Brendan Roark). These data files are of Text File (ASCII) format and include Documentation data describing sampling and dive events. DOI: 10.1594/IEDA/326832
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Event Logs from ROV SuBastian Dives conducted during R/V Falkor expedition FK191012 (2019)
Author(s): Phillips, Brennan
Description: This data set was acquired with a Schmidt Ocean Institute EventLogger on ROV SuBastian during R/V Falkor expedition FK191012 conducted in 2019 (Chief Scientist: Dr. Brennan Phillips, Investigator: Dr. Brennan Phillips). These data files are of Text File (ASCII) format and include Documentation data describing sampling and dive events. DOI: 10.1594/IEDA/326833
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ROV SuBastian Dive Reports from R/V Falkor expedition FK190612 (2019)
Author(s): Baumberger, Tamara
Description: These dive reports are from the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK190612 conducted in 2019 (Chief Scientist: Dr. Tamara Baumberger, Investigator: Dr. Tamara Baumberger). These data files are of PDF format and include EventLogs, Sample Reports and Dive Logs. DOI: 10.1594/IEDA/326834
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ROV SuBastian Dive Reports from the Emperor Seamount chain acquired during R/V Falkor expedition FK190726 (2019)
Author(s): Watling, Les
Description: These dive reports are from the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK190726 conducted in 2019 (Chief Scientist: Dr. Les Watling, Investigator: Dr. Les Watling). These data files are of PDF format and include Sample Reports, Dive Reports, and Event Reports. DOI: 10.1594/IEDA/326835
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ROV SuBastian Dive Reports R/V Falkor expedition FK190831 (2019)
Author(s): Roark, Brendan
Description: These Dive Reports are from the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK190831 conducted in 2019 (Chief Scientist: Dr. Brendan Roark, Investigator: Dr. Brendan Roark). These data files are of PDF format and include Sample Logs, Dive Logs, and Event Logs. DOI: 10.1594/IEDA/326836
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ROV SuBastian Dive Reports from R/V Falkor expedition FK191012 (2019)
Author(s): Phillips, Brennan
Description: These dive reports are from the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK191012 conducted in 2019 (Chief Scientist: Dr. Brennan Phillips, Investigator: Dr. Brennan Phillips). These data files are of PDF format and include Sample Logs, Dive Logs, and Event Logs. DOI: 10.1594/IEDA/326837
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Google Earth Files of ROV SuBastian Dives conducted during R/V Falkor expedition FK190612 (2019)
Author(s): Baumberger, Tamara
Description: This data set is a product of the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK190612 conducted in 2019 (Chief Scientist: Dr. Tamara Baumberger, Investigator: Dr. Tamara Baumberger). These data files are of Google Earth (KML) format and include Dive Tracks and Event Log data. DOI: 10.1594/IEDA/326838
View Data >

Google Earth Files of ROV SuBastian Dives during R/V Falkor expedition FK190726 (2019)
Author(s): Watling, Les
Description: This data set was acquired with the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK190726 conducted at the Emperor Seamount Chain in 2019 (Chief Scientist: Dr. Les Watling, Investigator: Dr. Les Watling). These data files are of Google Earth (KML) format and include Dive Tracks and Dive Events. DOI: 10.1594/IEDA/326839
View Data >

Google Earth Files of ROV SuBastian Dives conducted during R/V Falkor expedition FK191012 (2019)
Author(s): Phillips, Brennan
Description: This data set is a product of the Schmidt Ocean Institute ROV SuBastian during R/V Falkor expedition FK191012 conducted in 2019 (Chief Scientist: Dr. Brennan Phillips, Investigator: Dr. Brennan Phillips). These data files are of Google Earth (KML) format and include Dive Tracks and Dive Events. DOI: 10.1594/IEDA/326841
View Data >

CHIRP sub-bottom profile raw envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326827
View Data >

CHIRP sub-bottom profile processed envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326828
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CHIRP sub-bottom profile raw data (JSF format) collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). The data files are in the EdgeTech native JSF format and contain raw sub-bottom data that has not been merged with navigation. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326824
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CHIRP sub-bottom profile raw full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This raw, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326825
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CHIRP sub-bottom profile processed full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2018)
Author(s): Goff, John; Gulick, Sean
Description: This processed, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2018 as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326826
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XML file describing CHIRP sub-bottom profile data collected offshore Galveston, Texas (TRiPP surveys, 2017 and 2018)
Author(s): Goff, John; Gulick, Sean
Description: This XML file describes the acquisition and processing of sub-bottom data collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017, May 2018 and August 2018 as part of the Trinity River Paleovalley Project (TRiPP). The file is in XML format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326823
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Selected Processed 2-D Multi-channel Seismic Reflection Data from Lake Tanganyika Acquired by Project PROBE (Duke University) in 1983-1984 (legacy time processing)
Author(s): Scholz, Christopher; Rosendahl, Bruce
Description: This data set is a collection of 12 time-processed dip profiles acquired along the length of the Lake Tanganyika Rift (Tanzania, Democratic Republic of the Congo, Burundi) as part of the PROBE project (Proto-Rifts and Oceanic Basin Evolution). The data files are in SEG-Y format, 6 seconds two-way travel time record length, 4 ms sample rate. Profiles are generally oriented east-west across multiple rift segments. Data were acquired aboard R/V Nyanja, a 32 feet dedicated geophysical vessel transportable by cargo aircraft. Source was a single 140 cubic inch EERI airgun. Streamer was a GECO custom-built 960 m active-length cable comprising 48 groups (20 m group interval); lead-in cable length varied from 250-440 m. Streamer depth was nominally 10 m and controlled a buoy suspension system. Fold coverage was nominally 24-fold. Acquisition was via a Texas Instruments DFS-V, at 2 ms sample rate. Navigation was by transit satellite, radar, automatic speed log and deduced reckoning. Processed navigational data are embedded in SEG-Y trace headers. Navigational accuracy ranges from <100 m to several km in places. Every line is controlled by a minimum of two fixes and a 40-80 km line is controlled by 5-8 good fixes. Chief Scientist was Bruce R. Rosendahl. Data were recovered from 9-track tape and archived on modern media under the supervision of Christopher A. Scholz, Syracuse University. Legacy time processing at Duke University was completed with Digicon DISCO 50 software on a DEC VAX 11/750 computer, applying the following workflow: Demultiplexing, Resample, Geometry Definition, Trace Edit, Sort, Deconvolution, Filter, Velocity Analysis, Stacking, Mute, Migration, Display. Deconvolution is a predictive gap deconvolution, occasionally spiking deconvolution is used. Filtering was variable, typically a bandpass filter with a Hanning taper was employed with typical cutoffs of 6-10 Hz at the low end, and 50-55 Hz at the upper end. Some lines received time-variant filtering and occasionally notch filters were used. All dip lines were subjected to a post-stack finite difference time migration routine. Funding for data collection and processing was from multiple 1980s-era oil and gas companies. DOI: 10.1594/IEDA/326822
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CHIRP sub-bottom profile raw full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This raw, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326818
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CHIRP sub-bottom profile processed full-waveform data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This processed, full-waveform sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). The full-waveform information is captured in the "real" data channel during acquisition. Here, the full-waveform data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326819
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CHIRP sub-bottom profile raw envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This raw, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326820
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CHIRP sub-bottom profile raw data (JSF format) collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This raw sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). The data files are in the EdgeTech native JSF format and contain raw sub-bottom data that has not been merged with navigation. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326817
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CHIRP sub-bottom profile processed envelope data (SEG-Y format) collected offshore Galveston, Texas (TRiPP survey, May 2017)
Author(s): Goff, John; Gulick, Sean
Description: This processed, envelope sub-bottom data set was collected with an EdgeTech SB-512i sub-bottom towfish system in May 2017 as part of the Trinity River Paleovalley Project (TRiPP). The envelope information is captured in the "env" data channel during acquisition. Here, the envelope data has been extacted and processed and is stored in SEG-Y format. Funding for the project was provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, under Agreement Number M16AC00020. DOI: 10.1594/IEDA/326821
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Red Sea gridded multibeam swath bathymetry from R/V Pelagia cruise 64PE445, SALTAX
Author(s): Augustin, Nico; Wolfl, Anne-Cathrin; Schade, Martin; van, der, Zwan, Froukje; Mitchell, Neil
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during R/V Pelagia cruise 64PE445 (chief scientist Nico Augustin). The processed bathymetry was gridded at 30m resolution. The data file is in GeoTIFF floating point grid format and was generated as part of a project called SALTAX: Geomorphology and geophysics of submarine salt flows in the Red Sea Rift. DOI: 10.1594/IEDA/326507
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Red Sea gridded multibeam swath bathymetry from the Jeddah Transect Project
Author(s): Augustin, Nico; Feldens, Peter; Kwasnitschka, Tom; Schmidt, Mark; Al, Farawati, Radwan; Basaham, Ali
Description: The multibeam bathymetry data was collected during Poseidon cruise 408 in 2011 with an ELAC Seabeam 3050 system and during Pelagia cruises 64PE350 and 64PE351 in 2012 with a Kongsberg Simrad EM302 system. The raw data were post-processed and gridded at a resolution of 30m with QPS Fledermaus Pro. The data file is in GeoTIFF floating point grid format and was generated as part of the Jeddah Transect Project. DOI: 10.1594/IEDA/326508
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Gridded mulitbeam bathymetry data of the active lava ocean entry area of the 2018 Lower East Rift Zone eruption of Kilauea Volcano
Author(s): Soule, S.Adam
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during E/V Nautilus cruise NA099 (chief scientist Larry Mayer). The data files were processed in QPS Qimera using XBT sound velocity profiles collected locally. Bathymetry was gridded at 50m resolution for the entire survey and at 5m resolution for the near-shore lines at the site of the 2018 Kilauea ocean entry. The data files are in GMT-compatible netCDF grid format and were generated as part of a project called RAPID:Documenting the Development of a Lava Delta at the 2018 Lower East Rift Zone Eruption of Kilauea Volcano. Funding was provided by NSF award OCE18-46068 to Adam Soule. DOI: 10.1594/IEDA/326505
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Gridded mulitbeam bathymetry data of the inactive Pu'u 'O'o lava ocean entry area of Kilauea Volcano
Author(s): Soule, S.Adam
Description: The multibeam bathymetry data was collected with an EM302 swath system in 2018 during E/V Nautilus cruise NA100 (chief scientists Darlene Lim and Christopher German). The data files were processed in QPS Qimera using XBT sound velocity profiles collected locally. Bathymetry was gridded at 20m resolution for the inactive Pu'u 'O'o ocean entry area. The data files are in GMT-compatible netCDF grid format and were generated as part of a project called RAPID:Documenting the Development of a Lava Delta at the 2018 Lower East Rift Zone Eruption of Kilauea Volcano. Funding was provided by NSF award OCE18-46068 to Adam Soule. DOI: 10.1594/IEDA/326506
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NoMelt: 1-D elastic model and uncertainties beneath the NoMelt Central Pacific array
Author(s): Russell, Joshua; G