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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Pre-stack depth migrated multi-channel seismic images and velocity models of the sediment section near the Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Locale
File Format
ASCII
Quality
2
Han, Shuoshuo
LDEO
Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Locale
File Format
ASCII
Quality
2
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500069
Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Locale
File Format
SEGY
Quality
2
Processed multi-channel seismic data on the Juan de Fuca Plate, from Juan de Fuca Ridge to Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Locale
File Format
PDF
Quality
2
Han, Shuoshuo
LDEO
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500248
Pre-stack depth migrated multi-channel seismic images and velocity models of the sediment section near the Cascadia deformation front off Oregon and Washington, acquired during the R/V Marcus G. Langseth survey MGL1211 (2012)
Locale
File Format
SEGY
Quality
2
Seismic:Velocity:Model
Data DOI:
10.26022/IEDA/330049
Sediment P-wave velocity model (MATLAB format) derived from full-waveform inversion along the Oregon Transect (Line 1) and Washington Transect (Line 2) of the Juan de Fuca Ridge-to-Trench study
Platform Info
Array:Marcus G. Langseth
LDEO
Device Info
Seismic: MCS
LDEO
Locale
Cascadia
FocusSite:GeoPRISMS
File Format
MATLAB
Quality
2
Han, Shuoshuo
UTIG
Arnulf, Adrien
UTIG
Canales, JuanPablo
WHOI
Carbotte, Suzanne
LDEO
Nedimovic, Mladen
Dalhousie
Raw Data Sets
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Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/319000
Multi-Channel Seismic Shot Data from the Cascadia Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1211 (2012)
Locale
Cascadia
FocusSite:GeoPRISMS
File Format
SEGD
Quality
0
Carbotte, Suzanne
LDEO
Canales, JuanPablo
WHOI
Carton, Helene
LDEO
Nedimovic, Mladen
Dalhousie
Event Logs
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Carbotte, Suzanne
LDEO
Device Info
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Canales, JuanPablo
WHOI
Device Info
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Canales, JuanPablo
WHOI
Device Info
Seismic: OBS
Platform: Marcus G. Langseth (Array)
Canales, JuanPablo
Device Info
Probe: Expendable: XBT
Sippican:T-5
Platform: Marcus G. Langseth
Carbotte, Suzanne
LDEO
Device Info
Probe: Expendable: XBT
Sippican:T-7
Platform: Marcus G. Langseth
Carbotte, Suzanne
LDEO
Device Info
Probe: Expendable: XBT
Sippican:T-4
Platform: Marcus G. Langseth
Carbotte, Suzanne
LDEO
Device Info
Probe: Expendable: XSV
Sippican:XSV-02
Platform: Marcus G. Langseth
Carbotte, Suzanne
LDEO
Seismic Acquisition Parameters
MGL1211_ACQ001 (Lines: Sequences 1-6, 28-41)
Source Information
AirGun (BOLT:1500LL)
Source Number: 40
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 12
Number of Arrays: 1
Receiver Information
Seismic:OBS
Nav System
C-Nav 3050
WGS84
Acquisition System
Digital
Details
Shots were recorded by Ocean Bottom Seismometers (OBS)
Shot Interval for Sequences 1-6, 28, 29, 41 was 500m
Shot Interval for Sequences 30-40 was 170m
MGL1211_ACQ002 (Lines: Sequences 7-15)
Source Information
AirGun (BOLT:1500LL)
Source Number: 40
Volume (cu in): 6600
Pressure (psi): 2000
Depth (m): 9
Distance to Near Channel (m): 172
Distance to Antenna (m): 232
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): 12.288
Details
Shot Interval for Sequences 07-13 was 37.5m
Shot Interval for Sequence 14 was 150m
MGL1211_ACQ003 (Lines: Sequences 16-27)
Source Information
AirGun (BOLT:1500LL)
Source Number: 40
Pressure (psi): 2000
Depth (m): 9
Distance to Near Channel (m): 272
Distance to Antenna (m): 232
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): 12.288
Details
Shot Interval for Sequences 16-22 was 37.5m
Shot Interval for Sequence 23 and 27 was 500m
Shot Interval for Sequences 24-26 was 150m
Sequences 23-27 were also recorded by OBS
Source Volume for Sequence 21 was 3300cu.in.
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