Seismic Reflection/Refraction Data at the Academic Seismic Portal
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Expeditions / Compilations
Marcus G. Langseth
Processed
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Acquisition Information
Processed Data Sets
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Heatflow
Data DOI:
10.1594/IEDA/324242
COAST: Heat flow derived from Bottom Simulating Reflectors (BSR) at the Cascadia Subduction Zone (investigators H. Paul Johnson, Evan Solomon, Robert Harris, Marie Salmi)
Locale
Cascadia
FocusSite:GeoPRISMS
File Format
ASCII
Quality
2
Raw Data Sets
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Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/318981
Multi-Channel Seismic Shot Data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1212 (2012)
Locale
Cascadia
FocusSite:GeoPRISMS
File Format
SEGD
Quality
0
Holbrook, W. Steven
University of Wyoming
Kent, Graham
UNR
Keranen, Kathleen
OU
Event Logs
Device Info
Related DevicesSeismic:
Platform: Marcus G. Langseth
Seismic:
LDEO
Platform: Marcus G. Langseth (Array)
Holbrook, W. Steven
University of Wyoming
Holbrook, W. Steven
University of Wyoming
Device Info
Probe:
Sippican:T-5
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe:
Sippican:T-7
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe:
Sippican:T-4
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Device Info
Probe:
Sippican:XCTD-1
Platform: Marcus G. Langseth
Holbrook, W. Steven
University of Wyoming
Seismic Acquisition Parameters
MGL1212_ACQ001 (Lines: Sequences 1-10, 25)
Source Information
AirGun (BOLT:1500LL)
Pressure (psi): 2000
Depth (m): 15
Shot Interval (m): 50
Distance to Near Channel (m): 264
Distance to Antenna (m): 240
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 636
Channels Recorded: 636
Group Spacing (m): 12.5
Cable Length (m): 7950
Cable Depth (m): 15
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 16.384
Details
Source Volume was 6600 cu.in. for Sequences 1-10
Source Volume was 3300 cu.in. for Sequence 25
Source Number was not provided, but was likely 36 airguns for Sequences 1-10, and 18 airguns for Sequence 25
MGL1212_ACQ002 (Lines: Sequences 11-23, 24)
Source Information
AirGun (BOLT:1500LL)
Pressure (psi): 2000
Depth (m): 9
Shot Interval (m): 50
Distance to Near Channel (m): 264
Distance to Antenna (m): 240
Number of Arrays: 1
Receiver Information
Hydrophone:Streamer
Number of Cables: 1
Channels Per Cable: 636
Channels Recorded: 636
Group Spacing (m): 12.5
Cable Length (m): 7950
Cable Depth (m): 9
Near Channel Number: 636
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 16.384
Details
Source Volume was 6600 cu.in. for Sequences 11-23
Source Volume was 3300 cu.in. for Sequence 24
Source Number was not provided, but was likely 36 airguns for Sequences 11-23, and 18 airguns for Sequence 24
org.marine-geo:MGL1212_ACQ001 (Lines: )
Source Information
AirGun
Receiver Information
NotApplicable
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Details
Receiver Type: Hydrophone:Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Sercel Syntrak 960
Acquisition System Type: null
Seismic Nav System: C-Nav 3050 primary
Survey Datum: WGS84
Source to Near Channel (m): 264
Antenna to Source (m): 240
Number of Channels Recorded: 636
Channel Length (m): 12.5
Cable Receiver Depth (m): 15: sequences1-20, 25; 9: seq 11-23, 24
Source Volume (cubicInches): 6600: seq 1-10, 11-23; 3300: seq 24, 25
Source Pressure (bars): 138
Source Number: 1
Source Depth (m): 15: sequences1-20, 25; 9: seq 11-23, 24
Shot Control: null
Shot Interval (s or m): null
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
org.marine-geo:mgl1212_acq001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
C-Nav 3050 primary
WGS84
Acquisition System
Digital
Name: Sercel Syntrak 960
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Sercel Syntrak 960
Acquisition System Type: digital
Seismic Nav System: C-Nav 3050 primary
Survey Datum: WGS84
Source to Near Channel (m): 172: sequences 7-15; 272: sequences 16-27
Antenna to Source (m): 232
Number of Channels Recorded: 636
Channel Length (m): 12.5
Cable Receiver Depth (m): 9
Source Volume (cubicInches): 6600; 3300: sequence 21
Source Pressure (bars): 138
Source Number: 40
Source Depth (m): 9: sequences 7-15, 16-27
Shot Control: distance
Shot Interval (s or m): 37.5: sequences 7-13, 16-22, 150: seq 14, 24-26; 500: seq 23, 27
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
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