MGL1204 - Marine Geoscience Data System

Sensor Data

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Bathymetry:Swath

Device Info

Sonar:Multibeam

Marcus G. Langseth

Repository

R2R

Format

MBSystem

Lizarralde, Dan

WHOI

Gravity:Field

Device Info

Gravimeter

Marcus G. Langseth

Repository

R2R

Format

ASCII

Lizarralde, Dan

WHOI

Hydroacoustic (Data not online)

Device Info

Hydrophone

Mooring

Wiens, Douglas

WUSTL

Lizarralde, Dan

WHOI

Miller, Nathan C.

Hydroacoustic (Data not online)

Device Info

Seismic:OBS

Mooring

Wiens, Douglas

WUSTL

Lizarralde, Dan

WHOI

Miller, Nathan C.

Magnetic:Field

Device Info

Magnetometer

Marcus G. Langseth

Repository

R2R

Format

ASCII

Lizarralde, Dan

WHOI

Navigation:Primary

Device Info

Navigation

Marcus G. Langseth

Repository

R2R

Format

R2R:Nav

Lizarralde, Dan

WHOI

Seismic Reflection/Refraction

Device Info

Seismic:MCS

Array:Marcus G. Langseth

Repository

MGDS

Format

P1, P2, SEGD

Lizarralde, Dan

WHOI

Wiens, Douglas

WUSTL

Related References

Seismic Reflection/Refraction

Device Info

Seismic:OBS

Array:Marcus G. Langseth

Repository

IRIS

Repository

MGDS

Format

ASCII

Lizarralde, Dan

WHOI

Wiens, Douglas

WUSTL

Miller, Nathan C.

MIT

Related References

Seismic:Active:Subbottom

Device Info

Seismic:Subbottom

Marcus G. Langseth

Repository

R2R

Format

KEB

Lizarralde, Dan

WHOI

Temperature, Velocity:Sound

Device Info

Probe:Expendable:XBT

Marcus G. Langseth

Repository

R2R

Repository

MGDS

Format

ASCII, EDF

Lizarralde, Dan

WHOI

Wiens, Douglas

WUSTL

Event Logs

Line

Device Info

Related Devices

Lizarralde, Dan

WHOI

Station:Bottom:Deployed (TN274)

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:Bottom:Deployed

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:Bottom:Recovered (MGL1205)

Device Info

Related Devices

Wiens, Douglas

WUSTL

Station:WaterColumn:Released

Device Info

Probe:Expendable:XBT

Sippican:T-5

Platform: Marcus G. Langseth

Wiens, Douglas

WUSTL

Station:WaterColumn:Released

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

References

Eimer et al., 2020 Seismicity of the incoming plate and forearc near the Mariana Trench recorded by ocean bottom seismographs Geochem Geophys Geosyst . doi: 10.1029/2020GC008953

Li et al., 2023 Multichannel seismic evidence for tectonic migration in the Mariana subduction system Geophysical Prospecting . doi: 10.1111/1365-2478.13373

Mark et al., 2023 Constraints on Bend-Faulting and Mantle Hydration at the Marianas Trench From Seismic Anisotropy Geophysical Research Letters 50. doi: 10.1029/2023GL103331

Xing et al., 2021 Enlightenment of the Mariana Fore Arc Sedimentary Basin Evolution to the Subduction Process Study Acta Geologica Sinica . doi: 10.1111/1755-6724.14860

Scientific Personnel

Coccia, Martina

Student:Graduate

MIT

Feng, Helen

Student:Graduate

WHOI

Hughes, Matthew

Scientist

WHOI

Lizarralde, Dan

Scientist:Chief

WHOI

Lu, Chuanchuan

Student:Graduate

WHOI

Lundquist, John

Scientist

WHOI

Miller, Nathan C.

Scientist:Co-Chief

MIT

Siegel, Jacob

Student:Graduate

Rice

Wiens, Douglas

Scientist:Investigator:Co-Principal
(not in field)

WUSTL

Support Personnel

Ellis, Emily

Observer:MarineMammal

RPS Group

Francis, Christopher

Technician:Airgun:Chief

LDEO:Office of Marine Operations

Groves, Weston

Technician:Airgun

LDEO:Office of Marine Operations

Gutierrez, Carlos

Technician:Airgun

LDEO:Office of Marine Operations

Harrison, Amanda

Observer:MarineMammal

RPS Group

Ingram, Heidi

Observer:MarineMammal

RPS Group

Martello, Michael

Technician

LDEO:Office of Marine Operations

Moreno, Alexandra

Observer:MarineMammal

RPS Group

Ng, David

Technician:Science

LDEO:Office of Marine Operations

Piercy, Meghan

Observer:MarineMammal

RPS Group

Spoto, Thomas

Technician:Science

LDEO:Office of Marine Operations

Steinhaus, Robert

Technician:Science:Chief

LDEO:Office of Marine Operations

Tatro, Michael

Technician:Airgun

LDEO:Office of Marine Operations

Thomas, Tina

Technician

LDEO:Office of Marine Operations

Crew Personnel

Landow, Mark

Captain

LDEO:Office of Marine Operations

Instruments

Gravimeter

Device Info

BGM-3

BellAerospace

Magnetometer

Device Info

G-882

Geometrics

Navigation

Device Info

NotProvided

Probe:Expendable:XBT

Device Info

MK21

Sippican

Probe:Expendable:XBT

Device Info

T-5

Sippican

Probe:Expendable:XBT

Device Info

T-7

Sippican

Seismic:Subbottom

Device Info

3260

Knudsen

Seismic:Subbottom:CHIRP

Device Info

3260

Knudsen

Sonar:Multibeam

Device Info

EM122

Kongsberg

Thermosalinograph

Device Info

SBE-45 MicroTSG

Sea-Bird

Seismic:MCS

Device Info

NotProvided

LDEO

Platform Info

Marcus G. Langseth

Array

Seismic:OBS

Device Info

NotProvided

Platform Info

Marcus G. Langseth

Array

Hydrophone

Device Info

NotProvided

Platform Info

Mooring

Seismic:OBS

Device Info

NotProvided

Platform Info

Mooring