MGL1708 - Marine Geoscience Data System

Sensor Data

Sort by:

Backscatter:Acoustic, Bathymetry:Swath, Sidescan

Device Info

Sonar:Multibeam

Marcus G. Langseth

Repository

R2R

Format

MBSystem

Bangs, Nathan

UTIG

Gravity:Field

Device Info

Gravimeter

Marcus G. Langseth

Repository

R2R

Format

ASCII

Bangs, Nathan

UTIG

Magnetic:Field

Device Info

Magnetometer

Marcus G. Langseth

Repository

R2R

Format

ASCII

Bangs, Nathan

UTIG

Navigation:Primary

Device Info

Navigation

Marcus G. Langseth

Repository

R2R

Format

R2R:Nav

Bangs, Nathan

UTIG

Seismic Reflection/Refraction

Device Info

Seismic:MCS

Array:Marcus G. Langseth

Repository

MGDS

Format

P1, P2, SEGD

Bangs, Nathan

UTIG

Van Avendonk, Harm

UTIG

Wallace, Laura

UTIG

Proctor, William

UTIG

Pilarczyk, Jessica

USM

Marshall, Jeffrey

CalPoly:Pomona

Saffer, Demian

Penn State

Okaya, David

USC

Related References

Seismic:Active:Subbottom

Device Info

Seismic:Subbottom

Marcus G. Langseth

Repository

R2R

Format

KEB

Bangs, Nathan

UTIG

Temperature, Velocity:Sound

Device Info

Probe:Expendable:XBT

Marcus G. Langseth

Repository

R2R

Format

ASCII

Bangs, Nathan

UTIG

Event Logs

Line

Device Info

Seismic:MCS

LDEO

Platform: Marcus G. Langseth (Array)

Bangs, Nathan

UTIG

Seismic Acquisition Parameters

Download As Text

MGL1708_ACQ001 (Lines: Sequences 1-3 and 10, OBS-only.)

Source Information

AirGun (BOLT:1500LL)

Source Number: 1

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Distance to Antenna (m): 235

Number of Arrays: 1

Receiver Information

Seismic:OBS

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

C-Nav 3050 primary

WGS84

Acquisition System

Digital

Name: OBS

Details

Source was Bolt 1500LL and 1900LL. This set of acquisition parameters was used for airgun shooting to OBS instruments. No streamer was used so there are no recorded channels.

Shot spacing is 150m for Sequence 001-003

Shot spacing is 200m for Sequence 010.

MGL1708_ACQ002 (Lines: Sequences 4-9, 11-53.)

Source Information

AirGun (BOLT:1500LL)

Source Number: 1

Volume (cu in): 6600

Pressure (psi): 2000

Depth (m): 9

Shot Interval (m): 50

Distance to Near Channel (m): 188

Distance to Antenna (m): 235

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 1008

Channels Recorded: 1008

Group Spacing (m): 12.5

Cable Length (m): 12600

Cable Depth (m): 10

Near Channel Number: 1

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

C-Nav 3050 primary

WGS84

Acquisition System

Digital

Name: Sercel Seal 408 and OBS

Sample Interval (msec): 2

Record Length (sec): 18

Details

Source was Bolt 1500LL and 1900LL.

Shot spacing was 75m for sequence 007.

Shot spacing was 150m for sequence 009.

Record length was 14 seconds for sequences 035 and 044.

For sequences 031-032, 036-037, 039 and 041-043 the shot spacing was 37.5m and the record length was 14 seconds.

For sequences 033-034, 040 and 045 the shot spacing was 37.5m, the record length was 14 seconds, and the cable depth was 8m.

References

Bassett et al., 2022 Crustal Structure of the Hikurangi Margin From SHIRE Seismic Data and the Relationship Between Forearc Structure and Shallow Megathrust Slip Behavior Geophysical Research Letters 49. doi: 10.1029/2021GL096960

Bassett et al., 2023 Heterogeneous Crustal Structure of the Hikurangi Plateau Revealed by SHIRE Seismic Data: Origin and Implications for Plate Boundary Tectonics Geophysical Research Letters 50. doi: 10.1029/2023GL105674

Gase et al., 2019 Seismic Evidence of Magmatic Rifting in the Offshore Taupo Volcanic Zone, New Zealand Geophysical Research Letters 46. doi: 10.1029/2019GL085269

Gase et al., 2022 Hikurangi megathrust slip behavior influenced by lateral variability in sediment subduction Geology . doi: 10.1130/G50261.1

Gase et al., 2024 Volcanic crustal structure of the western Hikurangi Plateau (New Zealand) from marine seismic reflection imaging Geosphere 20. doi: 10.1130/GES02744.1

Scientific Personnel

Arnulf, Adrien

Scientist:Co-Chief

UTIG

Bangs, Nathan

Scientist:Chief

UTIG

Djeffal, Adnan

Student

University of Auckland

Fougere, Danielle

Student:Graduate

University of Otago

Gase, Andrew

Student:Graduate

UTIG

Han, Shuoshuo

Investigator
(not in field)

UTIG

Hillman, Jess

Scientist

GNS

Lacey, Helen

Student:Graduate

Imperial College London

Lodhia, Bhavik

Student:Graduate

Imperial College London

Marshall, Jeffrey

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

CalPoly:Pomona

Moore, Gregory

Investigator
(not in field)

UH:HIGP

Okaya, David

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

USC

Pilarczyk, Jessica

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

USM

Proctor, William

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

UTIG

Saffer, Demian

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

Penn State

Saustrup, Steffen

Scientist

UTIG

Shuck, Brandon

Student:Graduate

UTIG

Silver, Eli

Investigator
(not in field)

Stevens, Duncan

Student:Graduate

NOC

Tobin, Harold

Investigator
(not in field)

UW

Van Avendonk, Harm

Scientist:Investigator:Principal
(not in field)

UTIG

Wallace, Laura

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

UTIG

Instruments

Gravimeter

Device Info

BGM-3

BellAerospace

Magnetometer

Device Info

G-882

Geometrics

Navigation

Device Info

NotProvided

Probe:Expendable:XBT

Device Info

MK21

Sippican

Seismic:Subbottom

Device Info

3260

Knudsen

Sonar:Multibeam

Device Info

EM122

Kongsberg

Seismic:MCS

Device Info

NotProvided

LDEO

Platform Info

Marcus G. Langseth

Array