Marine Geoscience Data System

Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

Maurice Ewing

Processed

Acquisition Information

Processed Data Sets

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Seismic:Navigation

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)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

ASCII

Quality

2

Kent, Graham

show

Data Set References

Seismic:Navigation

Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

ASCII

Quality

2

Alsop, Joyce

show

Data Set References

Seismic:Reflection:MCS

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)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

PDF

Quality

2

Kent, Graham

show

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/500112

Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

SEGY

Quality

2

Alsop, Joyce

show

Data Set References

Seismic:Reflection:MCS

Processed multichannel seismic data along the East Pacific Rise south of Garrett Fracture Zone, acquired during the R/V Maurice Ewing survey EW9102 (1991)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

PDF

Quality

2

Alsop, Joyce

show

Data Set References

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/500111

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)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Locale

File Format

SEGY

Quality

2

Kent, Graham

show

Data Set References

Event Logs

Device Info

show

Related Devices

Detrick, Robert

URI

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Mutter, John

LDEO

Station:Surface (EW9102)

Device Info

Seismic:MCS

LDEO

Platform: Maurice Ewing (Array)

Seismic:Sonobuoy

Platform: Maurice Ewing (Array)

Detrick, Robert

URI

Seismic Acquisition Parameters

Download As Text

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

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