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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Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
ASCII
Quality
2
Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
ASCII
Quality
2
Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
ASCII
Quality
2
Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
PDF
Quality
2
Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
PDF
Quality
2
Canales, JuanPablo
WHOI
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500019
Processed multichannel seismic data on the East Pacific Rise, acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
SEGY
Quality
2
Carbotte, Suzanne
LDEO
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500020
Processed 3D volume of multichannel seismic data on the East Pacific Rise (9deg50minutes N to 9deg58minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
SEGY
Quality
2
Canales, JuanPablo
WHOI
Lonsdale, 1991
Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
PDF
Quality
2
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/500205
Processed 3D volume of multichannel seismic data on the East Pacific Rise (9 deg 20 minutes N to 10 deg 10 minutes N), acquired during R/V Marcus G. Langseth expedition MGL10812 (2008)
Locale
File Format
SEGY
Quality
2
Marjanovic, Milena
LDEO
Lonsdale, 1991
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/326492
Processed 3-D multi-channel seismic data volume for the East Pacific Rise 9°42'-9°57'N from the MGL0812 survey (classical time processing by H. Carton)
Locale
EPR:9N
FocusSite:Ridge2000
File Format
SEGY
Quality
2
Carton, Helene
LDEO
Carbotte, Suzanne
LDEO
Mutter, John
LDEO
Canales, JuanPablo
WHOI
Nedimovic, Mladen
Dalhousie
Seismic:Velocity:Model
Data DOI:
10.26022/IEDA/331329
Three-dimensional upper crustal velocities beneath the East Pacific Rise 9º50'N
Platform Info
Array:Marcus G. Langseth
LDEO
Device Info
Seismic: MCS
Locale
EPR:9N
FocusSite:Ridge2000
File Format
ASCII
Quality
2
Marjanovic, Milena
IPGP
Raw Data Sets
Sort by:
Seismic:Reflection:MCS
Data DOI:
10.1594/IEDA/314654
Multi-Channel Seismic Shot Data from the East Pacific Rise 9 Degrees North Spreading Center Segment acquired during R/V Marcus G. Langseth expedition MGL0812 (2008)
Locale
EPR:9N
SpreadingCenterSegment
File Format
SEGD
Quality
0
Mutter, John
LDEO
Carbotte, Suzanne
LDEO
Canales, JuanPablo
WHOI
Nedimovic, Mladen
Dalhousie
Event Logs
Device Info
Seismic: MCS
LDEO
Platform: Marcus G. Langseth (Array)
Mutter, John
LDEO
Device Info
Probe: Expendable: XBT
Sippican:T-5
Platform: Marcus G. Langseth
Mutter, John
LDEO
Seismic Acquisition Parameters
MGL0812_ACQ001 (Lines: )
Source Information
AirGun (BOLT:1500LL)
Source Number: 18
Volume (cu in): 3300
Pressure (psi): 2000
Depth (m): 7.5
Shot Interval (m): 37.5
Distance to Near Channel (m): 200
Distance to Antenna (m): 299.57
Number of Arrays: 2
Source Array Separation (m): 75
Receiver Information
Hydrophone:Streamer (SERCEL:Sentry)
Number of Cables: 4
Channels Per Cable: 468
Channels Recorded: 1872
Group Spacing (m): 12.5
Cable Spacing (m): 150
Cable Length (m): 5850
Cable Depth (m): 10
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
Cnav-primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Sample Interval (msec): 2
Record Length (sec): 10
Details
18 guns each source array
Near Channel Number for each streamer is 468, 936, 1404, 1872
Record Length for Sequence 1 (AXIS1) is 8 seconds. The rest of the lines were recorded for 10 seconds. Cable Depth is 7.5m for Sequence 1, 2, 3, 4 (AXIS1, AXIS2, AXIS3, AXIS2R1), 15m for Sequence 5 (Transit1). Cable Depth was 10m for the rest of the lines
Source to Near Channel Distance is given as an approximation, use P1/P2 files for greater accuracy.
org.marine-geo:MGL0812_ACQ001 (Lines: )
Source Information
AirGun
Receiver Information
Hydrophone:Streamer
Used Active Tail Buoy: true
Used Compass Birds: true
Nav System
Cnav-primary
WGS84
Acquisition System
Digital
Name: Syntron Syntrak 960
Details
Receiver Type: Hydrophone_Streamer
Source Type: SeismicSource_Gun_Air
Acquisition System Name: Syntron Syntrak 960
Acquisition System Type: digital
Seismic Nav System: Cnav-primary
Survey Datum: WGS84
Source to Near Channel (m): null
Antenna to Source (m): 299.57
Number of Channels Recorded: 1872
Channel Length (m): 12.5
Cable Receiver Depth (m): 7.5: sequence 1, 2, 3, 4 (AXIS1, AXIS2, AXIS3, AXIS2R1); 15: sequence 5 (Transit1); 10: rest of lines
Source Volume (cubicInches): 3300
Source Pressure (bars): 138
Source Number: 36
Source Depth (m): 7.5
Shot Control: distance
Shot Interval (s or m): 37.5
Compass Birds: yes
Tail Buoy Positioning: yes
Recording Delay: no
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