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South East Pacific Rise
Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garret Fracture Zone
Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garret Fracture Zone
Detrick, Robert
Chief Scientist
URI
Mutter, John
Co-Chief Scientist
LDEO
Platform
Maurice Ewing
LDEO
Start Date
1991-03-21
Punta Arenas, Chile
Stop Date
1991-05-07
Papeete, Tahiti
Data Sets
Acquisition Information
References
Personnel
Instruments
Documents
Related Information
Sensor Data
Sort by:
Device Info
Gravimeter, Magnetometer, Sonar:
Maurice Ewing
Repository
MGDS
Format
MGD77
Detrick, Robert
URI
Detrick, Robert
URI
Detrick, Robert
URI
Device Info
Seismic:
Array:Maurice Ewing
Repository
MGDS
Format
SEGY
Detrick, Robert
URI
Mutter, John
LDEO
Seismic Reflection/Refraction
(Image Seismic, Segy)
Device Info
Seismic:
Array:Maurice Ewing
Repository
MGDS
Format
ASCII, ASCII:TSN, PDF, SEGY
Detrick, Robert
URI
Alsop, Joyce
Kent, Graham
Mutter, John
LDEO
Event Logs
Device Info
Related DevicesSeismic:
Platform: Maurice Ewing (Array)
Seismic:
LDEO
Platform: Maurice Ewing (Array)
Detrick, Robert
URI
Device Info
Seismic:
Platform: Maurice Ewing (Array)
Mutter, John
LDEO
Device Info
Seismic:
Platform: Maurice Ewing (Array)
Seismic:
LDEO
Platform: Maurice Ewing (Array)
Detrick, Robert
URI
Seismic Acquisition Parameters
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
References
Carbotte et al., 1997 Contribution of volcanism and tectonism to axial and flank morphology of the southern East Pacific Rise, 17_10 - 17_40S, from a study of layer 2A geometry J. Geophys. Res. 102(B5). doi: 10.1029/96JB03910
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
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
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
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
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
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
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
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
Scientific Personnel
Alsop, Joyce
Investigator
(not in field)
(not in field)
LDEO
Buhl, Peter
Scientist
LDEO
Detrick, Robert
Scientist:Chief
URI
Harding, Alistair
Scientist
UCSD
Henkart, Paul
Scientist
SIO
Kent, Graham
Investigator
(not in field)
(not in field)
UNR
Mutter, John
Scientist:Co-Chief
LDEO
Orcutt, John
Scientist
UCSD
Sepulveda, Adriana
Scientist
LDEO
Tighe, Stacey
Scientist
URI
Vera, Emilio
Scientist
LDEO
Support Personnel
Ardai, Jose
Technician
LDEO
Budhypramono, Stefanus
Technician
LDEO
DiBernardo, John
Technician
LDEO
Dolan, James
Technician
URI
Smith, Ruben
Technician
LDEO
Stennett, Joseph
Technician
LDEO
Voegele, David
Technician
TAMU
Instruments
Gravimeter
Device Info
KSS-30
Bodenseewerk
Magnetometer
Device Info
V75
Varian Inc.
Navigation
Device Info
NotProvided
Sonar:Multibeam
Device Info
Hydrosweep DS
Atlas
Seismic:MCS
Device Info
NotProvided
Platform Info
Maurice Ewing
Array
Seismic:MCS
Device Info
NotProvided
LDEO
Platform Info
Maurice Ewing
Array
Seismic:Sonobuoy
Device Info
NotProvided
Platform Info
Maurice Ewing
Array
Related 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
Project Information
South East Pacific Rise
Two-Ship Multichannel Seismic Investigation of the East Pacific Rise South of the Garret Fracture Zone
Related Expeditions/Compilations
Information Curated at Other Data Systems
Repository
NOAA:NCEI
Repository
R2R
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