Seismic:Reflection:MCS
Raw Multi-Channel Seismic Shot Data from the East Pacific Rise Spreading Center acquired during R/V Maurice Ewing expedition EW9102 (1991)
This data set was acquired with the LDEO Multi-Channel Seismic system during R/V Maurice Ewing expedition EW9102 conducted in 1991 (Chief Scientist: Dr. Robert Detrick). These data files are of SEGY format and include Multi-Channel Reflection Seismic shot data that have not been processed. Data were acquired as part of the project: Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garrett Fracture Zone, and funding was provided by NSF grants: OCE90-12596, OCE90-12707, OCE90-12781, OCE91-02899, and OCE92-96017. These data are cited by Kent et al., 1994, Magde et al., 1995, Hussenoeder et al., 1996, Kent et al., 1996, Hussenoeder, 1998, Detrick et al., 1993, Hooft et al., 1997, Tolstoy et al., 1997, and Mutter et al., 1995.
Detrick, Robert
Investigator
URI
Mutter, John
Investigator
LDEO
Device Info
Seismic: MCS
LDEO
Platform
Maurice Ewing (Array)
LDEO
Awards
Data DOI
Quality
0
Data have not been processed or modified since acquisition (e.g. Realtime navigation or sonar data, raw images etc.).
Data Files
References
Acquisition Information
Documents
Data Citation Information
Related Data Sets
ISO/XML Metadata
References
Kent et al., 1994 Uniform accretion of oceanic crust south of the Garrett transform at 14°15'S on the East Pacific Rise J. Geophys. Res. 99(B5). doi: 10.1029/93JB02872
Magde et al., 1995 The crustal and upper mantle contribution to the axial gravity anomaly at the southern East Pacific Rise J. Geophys. Res. 100. doi: 10.1029/94JB02869
Hussenoeder et al., 1996 Seismic analysis of the axial magma chamber reflector along the southern East Pacific Rise from conventional reflection profiling J. Geophys. Res. 101. doi: 10.1029/96JB01907
Kent et al., 1996 Suppression of sea-floor-scattered energy using a dip-moveout approach: Application to the mid-ocean ridge environment Geophysics 61(3). doi: 10.1190/1.1444007
Hussenoeder, 1998 Seismic and magnetic constraints on the structure of upper oceanic crust at fast and slow spreading ridges Ph.D. Dissertation . doi: 10.1575/1912/4780
Detrick et al., 1993 Seismic structure of the southern East Pacific Rise Science 259. doi: 10.1126/science.259.5094.499
Hooft et al., 1997 Seismic structure and indicators of magma budget along the southern East Pacific Rise J. Geophys. Res. 102(B12). doi: 10.1029/97JB02349
Tolstoy et al., 1997 Deepening of the axial magma chamber on the southern East Pacific Rise toward the Garrett fracture zone J. Geophys. Res. 102(B2). doi: 10.1029/96JB03226
Mutter et al., 1995 Seismic Images of Active Magma Systems Beneath the East Pacific Rise Between 17Â 05' and 17Â 35'S Science 268. doi: 10.1126/science.268.5209.391
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ISO XML
ISO 19115-compliant xml report containing general data set level metadata
Related Acquisition Information
Seismic Acquisition Parameters
Download as Text: EW9102
EW9102_ACQ001 (Lines: 1081-1090, 1111, 1114, 1126, 1137)
Source Information
AirGun (BOLT:1500C)
Source Number: 10
Volume (cu in): 4193
Pressure (psi): 2000
Shot Interval (sec): 10
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 8.8
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ002 (Lines: 1091, 1106-1110, 1112-1113, 1115-1125, 1136, 1139-1144)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 20
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ003 (Lines: 1149,1151)
Source Information
AirGun (BOLT:1500C)
Source Number: 10
Volume (cu in): 4193
Pressure (psi): 2000
Shot Interval (sec): 10
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 8.7
Details
See the additional descriptive acquisition information in the Seismic:Ancillary file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ004 (Lines: 1092-1105, 1127-1135)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 60
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ005 (Lines: 1138)
Source Information
AirGun (BOLT:1500C)
Source Number: 6
Volume (cu in): 2620
Pressure (psi): 2000
Shot Interval (sec): 40
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18.75
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
EW9102_ACQ006 (Lines: 1145-1148,1150,1152)
Source Information
AirGun (BOLT:1500C)
Source Number: 20
Volume (cu in): 8385
Pressure (psi): 2000
Shot Interval (sec): 20
Distance to Near Channel (m): 358
Distance to Antenna (m): 95
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 160
Channels Recorded: 160
Group Spacing (m): 25
Near Channel Number: 160
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
Acquisition System
Digital
Name: DSS240
Sample Interval (msec): 4
Record Length (sec): 18
Details
See the additional descriptive acquisition information in the Report:Technical:Seismic:AcquisitionParameters file
This was a two ship cruise. See additional information for the cruise TERA01WT at http://www.marine-geo.org/tools/search/entry.php?id=TERA01WT
edu.utexas.ig:ew9102_acq001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: false
Used Compass Birds: false
Nav System
GPS, transit satellite
WGS84
Acquisition System
Digital
Name: DSS 240
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: DSS 240
Acquisition System Type: digital
Seismic Nav System: GPS, transit satellite
Survey Datum: WGS84
Source to Near Channel (m): 358
Antenna to Source (m): 95
Number of Channels Recorded: 160
Channel Length (m): 25
Cable Receiver Depth (m): unknown meters
Source Volume (cubicInches): 2620: line(s) 1138.<br>4193: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152; 1149;1152.<br>8385s: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136;1139-1144; 1092-1105; 1145-1148;1150;1152.
Source Pressure (bars): 138
Source Number: 6: line(s) 1138.<br>10: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152.<br>20: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136;1139-1144; 1092-1105; 1145-1148;1150;1152
Source Depth (m): unknown meters
Shot Control: time
Shot Interval (s or m): 10: line(s) 1081-1090; 1111;1114.1126;1137; 1149; 1152; 20: line(s) 1091; 1106-1110; 1112-1113; 1115-1125; 1136; 1139-1144; 1145-1148; 1150;1152; 40: line(s) 1138; >60: line(s) 1092-1105.
Compass Birds: no
Tail Buoy Positioning: no
Recording Delay: no
EW9102 Documents
Cruise
EW9102_science_cruise_rpt.pdf (3.5MB)
PDF
Cruise
e9102.pdf (41.0kB)
PDF
Seismic:AcquisitionParametersDetails
EW9102.metadata.txt (5.0kB)
ASCII
Sonobuoy Information
EW9102.sb.README (464B)
ASCII
How To Cite This Data
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Seismic Shot Point Navigation Data from the East Pacific Rise Spreading Center acquired during R/V Maurice Ewing expedition EW9102 (1991)
Platform Info
Array:Maurice Ewing
LDEO
Device Info
Seismic: MCS
LDEO
Events
Locale
EPR
SpreadingCenter
File Format
ASCII:TSN
Quality
1
Details
This dataset, Seismic Shot Point Navigation data, provides the primary seismic navigation source for this cruise and should be used for seismic data processing.
Seismic:WideAngle
Data DOI:
10.1594/IEDA/321939
Raw Wide-Angle Shot Data (Sonobuoy) from the East Pacific Rise Spreading Center acquired during the Maurice Ewing expedition EW9102 (1991)
Platform Info
Array:Maurice Ewing
LDEO
Device Info
Seismic: Sonobuoy
Events
Locale
EPR
SpreadingCenter
File Format
SEGY
Quality
0
Detrick, Robert
URI
Mutter, John
LDEO
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