Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

Map View

Expeditions / Compilations

MGL1205

Marcus G. Langseth

MGL1204

Marcus G. Langseth

TN274

Thomas G. Thompson

Raw

Acquisition Information

Raw Data Sets

Sort by:

Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/318559

Seismic Shot Point Navigation Data from the Mariana Trench Subduction Zone acquired during the R/V Marcus G. Langseth expedition MGL1204 (2012)

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Line Log

Station:Bottom:Deployed Log

Station:Bottom:Recovered Log

Locale

Izu-Bonin-Mariana

SubductionZone

File Format

ASCII

Quality

Details

Spectra shot logs for MCS and OBS lines

Lizarralde, Dan

WHOI

Wiens, Douglas

WUSTL

Seismic:Passive:OBS, Seismic:WideAngle:OBS

Data at IRIS

Platform Info

Array:Marcus G. Langseth

LDEO

Device Info

Seismic:OBS

Events

Line Log

Station:Bottom:Deployed Log

Station:Bottom:Recovered Log

Locale

Izu-Bonin-Mariana

SubductionZone

File Format

NotProvided

Quality

Wiens, Douglas

WUSTL

Lizarralde, Dan

WHOI

Miller, Nathan C.

MIT

Data Set References

Event Logs

Line (MGL1204)

Device Info

Related Devices

Lizarralde, Dan

WHOI

Station:Bottom:Deployed (TN274)

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:Bottom:Deployed (MGL1204)

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:Bottom:Recovered (MGL1205)

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:WaterColumn:Released (MGL1204)

Device Info

Probe:Expendable:XBT

Sippican:T-5

Platform: Marcus G. Langseth

Wiens, Douglas

WUSTL

Station:WaterColumn:Released (MGL1204)

Device Info

Probe:Expendable:XBT

Sippican:T-7

Platform: Marcus G. Langseth

Wiens, Douglas

WUSTL

Seismic Acquisition Parameters

Download As Text

MGL1204_ACQ001 (Lines: All MCS lines Sequence 1-11)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 50

Distance to Near Channel (m): 156.3

Distance to Antenna (m): 229.1

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Group Spacing (m): 12.5

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav 3050 primary

WGS84

Acquisition System

Digital

Name: Sercel Syntrak 960

Details

Acquisition interval was 2000 microseconds for Sequences 6, 7 and 8

Acquisition interval for all other lines was 4000 microseconds

Record Length for Sequence 11 was 19 seconds

Record Length for all other lines was 15 seconds

Number of Channels was 480 for Sequence 8

Number of Channels was 636 for all other lines

Near Channel Number was 480 for Sequence 8

Near Channel Number was 636 for all other lines

Streamer Length was reduced to 6000m for Sequence 8

Streamer Length was 7950m for all other lines

Streamer Depth was 9m for Sequences 1-4 and 9-11

Streamer Depth was 15m for Sequence 5, 10.5m for Sequence 6, 10m for Sequences 7 and 8

Expand