MGL2408 - Marine Geoscience Data System

MGL2408

Field:Marine

Cruise DOI: 10.7284/910668

Map View

Locale

Reykjanes Ridge Spreading Center

IMPULSE: Taking the Pulse of the Icelandic Mantle Plume

Jones, Stephen

Chief Scientist

University of Birmingham

Platform

Marcus G. Langseth

LDEO

Start Date

2024-08-04

Reykjavik, Iceland

Stop Date

2024-09-09

Reykjavik, Iceland

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Data Sets

Acquisition Information

Personnel

Instruments

Documents

Related Information

Sensor Data

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Seismic Reflection/Refraction

Device Info

Seismic:MCS

Array:Marcus G. Langseth

Repository

MGDS

Format

ASCII, ASCII:SourceInfo, P1, P2, SEGD

Jones, Stephen

University of Birmingham

Event Logs

Line

Device Info

Seismic:MCS

Platform: Marcus G. Langseth (Array)

Jones, Stephen

University of Birmingham

Seismic Acquisition Parameters

Download As Text

MGL2408_ACQ001 (Lines: Sequences 001 to 006, OBS only.)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 1900

Depth (m): 12

Shot Interval (sec): 60

Distance to Antenna (m): 276

Number of Arrays: 1

Receiver Information

Seismic:OBS

Nav System

C-Nav 3050 primary

WGS84

Acquisition System

Digital

Details

Source was Bolt 1500LL and 1900LL.

This set of acquisition parameters was used for airgun shooting to OBS instruments only. No streamer was used so there are no cables or channels. The shot spacing for OBS-only sequences 001-006 was 60 seconds.

Source volume for sequence 001 was 4950 cubic inches (27 active source elements) and source volume for sequence 006 was 6240 cubic inches.

MGL2408_ACQ002 (Lines: MCS Sequences 007-013.)

Source Information

AirGun (BOLT:1500LL)

Source Number: 36

Volume (cu in): 6600

Pressure (psi): 1900

Depth (m): 12

Shot Interval (m): 50

Distance to Near Channel (m): 178.2

Distance to Antenna (m): 276

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 1200

Channels Recorded: 1200

Group Spacing (m): 12.5

Cable Length (m): 15000

Cable Depth (m): 15

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 428 v1.1

Sample Interval (msec): 2

Record Length (sec): 20

Details

Source was Bolt 1500LL and 1900LL.

This set of acquisition parameters was used for MCS Sequences 007-013 except for the following:

Cable depth was 20m for sequence 009.

Record length was 18 seconds for sequences 010-013.

Source volume was 6540 cubic inches for sequences 009-011 and was 4890 cubic inches for sequences 012-013.

References

Scientific Personnel

Jones, Stephen

Scientist:Chief

University of Birmingham

Instruments

Seismic:MCS

Device Info

NotProvided

Platform Info

Marcus G. Langseth

Array