Seismic Reflection/Refraction Data at the Academic Seismic Portal
Expeditions / Compilations
Marcus G. Langseth
Processed
Raw
Acquisition Information
Processed Data Sets
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Backscatter:Acoustic
Data DOI:
10.26022/IEDA/327529
Backscatter site survey gridded data in support of IODP expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Sonar: Multibeam
Kongsberg:EM122
Locale
AtlanticOcean:South
Ocean
File Format
NetCDF:Grid
Quality
2
Bathymetry
Data DOI:
10.26022/IEDA/327528
Bathymetric site survey gridded data in support of IODP expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Platform Info
Marcus G. Langseth
LDEO
Device Info
Sonar: Multibeam
Kongsberg:EM122
Locale
AtlanticOcean:South
Ocean
File Format
NetCDF:Grid
Quality
2
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500255
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)
Locale
File Format
SEGY
Quality
2
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)
Locale
File Format
PDF
Quality
2
Estep, Justin
TAMU
Seismic:Velocity:Model
Data DOI:
10.1594/IEDA/324718
Navigation files supplemental to tomographic velocity models from Kardell et al. (2019) - MGL1601 / CREST
Platform Info
Marcus G. Langseth
LDEO
Device Info
NotApplicable
Locale
AtlanticOcean:South
Ocean
File Format
ASCII
Quality
2
Kardell, Dominik
UTIG
Christeson, Gail
UTIG
Estep, Justin
TAMU
Reece, Robert
TAMU
Carlson, Richard
TAMU
Seismic:Velocity:Model
Data DOI:
10.26022/IEDA/327531
Navigation files for the P-wave velocity models of Christeson et al. (2020), South Atlantic Transect (MGL1601, CREST)
Device Info
Seismic: OBS
Locale
AtlanticOcean:South
Ocean
File Format
ASCII
Quality
2
Christeson, Gail
UTIG
Reece, Robert
TAMU
Seismic:Velocity:Model
Data DOI:
10.26022/IEDA/327532
Velocity model layer parameters for the P-wave velocity models of Christeson et al. (2020), South Atlantic Transect (MGL1601, CREST)
Device Info
Seismic: OBS
Locale
AtlanticOcean:South
Ocean
File Format
ASCII
Quality
2
Christeson, Gail
UTIG
Reece, Robert
TAMU
Seismic:Velocity:Model
Data DOI:
10.1594/IEDA/324720
Mask files supplemental to tomographic velocity models from Kardell et al. (2019) - MGL1601 / CREST
Platform Info
Marcus G. Langseth
LDEO
Device Info
NotApplicable
Locale
AtlanticOcean:South
Ocean
File Format
ASCII
Quality
2
Kardell, Dominik
UTIG
Christeson, Gail
UTIG
Estep, Justin
TAMU
Reece, Robert
TAMU
Carlson, Richard
TAMU
Seismic:Velocity:Model
Data DOI:
10.26022/IEDA/327530
Two-Dimensional P-Wave Velocity Models in Support of IODP Expeditions 390 and 393, South Atlantic Transect (MGL1601, CREST)
Device Info
Seismic: OBS
Locale
AtlanticOcean:South
Ocean
File Format
NetCDF:Grid
Quality
2
Seismic:Velocity:Model
Data DOI:
10.1594/IEDA/324716
Two-dimensional (2-D) tomographic P-wave velocity structure of the upper crust between the Mid-Atlantic Ridge and the Rio Grande Rise
Platform Info
Marcus G. Langseth
LDEO
Device Info
NotApplicable
Locale
AtlanticOcean:South
Ocean
File Format
NetCDF:Grid
Quality
2
Kardell, Dominik
UTIG
Christeson, Gail
UTIG
Estep, Justin
TAMU
Reece, Robert
TAMU
Carlson, Richard
TAMU
Raw Data Sets
Sort by:
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/323597
Multi-Channel Seismic Shot Data from the South Atlantic Ocean acquired during R/V Marcus G. Langseth expedition MGL1601 (2016)
Locale
AtlanticOcean:South
Ocean
File Format
SEGD
Quality
0
Reece, Robert
TAMU
Christeson, Gail
UTIG
Event Logs
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Reece, Robert
TAMU
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Seismic: MCS
Platform: Marcus G. Langseth (Array)
Christeson, Gail
UTIG
Device Info
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Reece, Robert
TAMU
Seismic Acquisition Parameters
MGL1601_ACQ001 (Lines: Lines Sequence 1-7, all OBS lines)
Source Information
AirGun (BOLT:1500LL)
Source Number: 1
Volume (cu in): 6600
Pressure (psi): 6600
Depth (m): 9
Shot Interval (m): 150
Distance to Antenna (m): 205
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Nav System
C-Nav 3050
WGS84
Acquisition System
Digital
Details
Shots recorded only by WHOI Ocean Bottom Seismometers
Source models were Bolt 1500LL and 1900LL
MGL1601_ACQ002 (Lines: Lines Sequence 7-30 (all MCS lines))
Source Information
AirGun (BOLT:1500LL)
Source Number: 36
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9
Shot Interval (m): 37.5
Distance to Near Channel (m): 217.7
Distance to Antenna (m): 205
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer (SERCEL:Sentinel Solid Streamer)
Number of Cables: 1
Channels Per Cable: 1008
Channels Recorded: 1008
Group Spacing (m): 12.5
Cable Length (m): 12600
Cable Depth (m): 9
Near Channel Number: 1
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary, a global satellite-based differential receiver
WGS84
Acquisition System
Digital
Name: SERCEL SEAL 408
Sample Interval (msec): 2
Details
Record Length for Seq 7-28 was 15s
Record Length for Seq 29 was 14s
Record Length for Seq 30 was 12s
Source models were Bolt 1500LL and 1900LL
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