RC2810 - Marine Geoscience Data System

RC2810

Field:Marine

Map View

Blake Spur Fracture Zone MCS Experiment

Detrick, Robert

Chief Scientist

URI

Mutter, John

Co-Chief Scientist

LDEO

Awards

N00014-87-K-0074

Platform

Robert D. Conrad

LDEO

Start Date

1987-11-12

St. Georges, Bermuda

Stop Date

1987-12-04

Miami, Florida

Report Incorrect Information

Data Sets

Acquisition Information

References

Personnel

Instruments

Documents

Related Information

Sensor Data

Sort by:

Bathymetry:Singlebeam, Gravity:Field, Magnetic:Field

Device Info

Gravimeter, Magnetometer, Sonar:Multibeam

Robert D. Conrad

Repository

MGDS

Format

MGD77

Detrick, Robert

URI

Navigation:Primary

Device Info

Navigation

Robert D. Conrad

Repository

MGDS

Format

MGDS:Nav, SHP

Detrick, Robert

URI

Seismic Reflection/Refraction

Device Info

Seismic:Sonobuoy

Array:Robert D. Conrad

Repository

MGDS

Format

SEGY

Detrick, Robert

URI

Mutter, John

LDEO

Seismic Reflection/Refraction

(Image Seismic, Segy)

Device Info

Seismic:MCS

Array:Robert D. Conrad

Repository

MGDS

Format

ASCII, PDF, SEGY

Alsop, Joyce

Detrick, Robert

URI

Mutter, John

LDEO

Related References

Mutter and Karson, 1992

Morris, 1991

Event Logs

Device Info

Seismic:MCS

LDEO

Platform: Robert D. Conrad (Array)

Seismic:Sonobuoy

Platform: Robert D. Conrad (Array)

Detrick, Robert

URI

Line

Device Info

Seismic:MCS

Platform: Robert D. Conrad (Array)

Mutter, John

LDEO

Station:Surface

Device Info

Seismic:MCS

LDEO

Platform: Robert D. Conrad (Array)

Seismic:Sonobuoy

Platform: Robert D. Conrad (Array)

Detrick, Robert

URI

Seismic Acquisition Parameters

Download As Text

RC2810_ACQ001 (Lines: Line Sequence Numbers 683-721)

Source Information

AirGun (BOLT:1500C)

Source Number: 10

Pressure (psi): 2000

Depth (m): 9

Distance to Near Channel (m): 320

Distance to Antenna (m): 58

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 240

Channels Recorded: 240

Group Spacing (m): 12.5

Cable Length (m): 3000

Cable Depth (m): 9

Near Channel Number: 240

Used Compass Birds: true

Nav System

likely Navy Transit Satellites

WGS84

Acquisition System

Digital

Name: DSS240

Sample Interval (msec): 4

Details

CONRAD CDP-only lines: 683-685, 703, 705, 707, 709, 711-721

ESP lines with CONRAD recording the reflection line and DISCOVERY recording the ESP: 686-698, 700-702, 704, 706, 708, 710

CONRAD AND DISCOVERY WAPCDP line: 699 - Even shot numbers 12970-16674 are Discovery shots. Odd shot numbers 12969-16673 and all shot numbers 16675-17043 are Conrad shots

Source Volume is 4846 cu. in. for cdp-only lines, otherwise 5821 cu. in.

Shot Interval is 40 secs for lines 686-698, 700-702, 704-706, 708, 710 and line 699 shots 12969-16675

Shot Interval is 20/22 secs (50m) for lines 711, 717, 719

Shot Interval is 22 secs for lines 712-715, 718

Shot Interval is 30 secs for lines 683-685, 703, 707 and line 699 shots 16677-17043

Record Length is 15 secs for lines 689-704 and 710, 12 secs for lines 683-688, 705-709, 711-721.

References

Minshull et al.,1991 Crustal Structure at the Blake Spur Fracture Zone from Expanding Spread Profiles J. Geophys. Res. 96(B6). doi: 10.1029/91JB00431

Morris et al., 1993 Seismic structure of oceanic crust in the western North Atlantic J. Geophys. Res. 98(B8). doi: 10.1029/93JB00557

Morris, 1991 New Geophysical Constraints on the Structure of Oceanic Crust Ph.D. Dissertation .

Mutter and Karson, 1992 Structural Processes at Slow-Spreading Ridges Science 257. doi: 10.1126/science.257.5070.627

White et al., 1990 New seismic images of oceanic crustal structure Geology 18(5). doi: 10.1130/0091-7613(1990)018<0462:NSIOOC>2.3.CO;2

Scientific Personnel

Alsop, Joyce

Investigator
(not in field)

LDEO

Detrick, Robert

Scientist:Chief

URI

Mutter, John

Scientist:Co-Chief

LDEO

Support Personnel

Ardai, Jose

Technician

LDEO

Blaes, Robert

Technician

LDEO

DiBernardo, John

Technician

LDEO

Forman, Rene

Technician

LDEO

Gutierrez, Carlos

Technician

LDEO

Iltzsche, Martin

Technician

LDEO

LaBrecque, Steven

Technician

LDEO

Morris, Ellen

Unknown

URI

Newman, Kevin

Unknown

LDEO

Nolan, Tim

Unknown

LDEO

QaliMaiwiriwiri, Ropate

Technician

LDEO

Rees, Beth

Unknown

URI

Richardson, Mark

Unknown

URI

Robinson, William

Technician

LDEO

Smith, James

Technician:Science

LDEO

Stennett, Joseph

Technician:Science

LDEO

Instruments

Gravimeter

Device Info

NotProvided

Magnetometer

Device Info

NotProvided

Navigation

Device Info

NotProvided

Sonar:Multibeam

Device Info

Classic

SeaBeam

Seismic:MCS

Device Info

NotProvided

LDEO

Platform Info

Robert D. Conrad

Array

Seismic:MCS

Device Info

NotProvided

Platform Info

Robert D. Conrad

Array

Seismic:Sonobuoy

Device Info

NotProvided

Platform Info

Robert D. Conrad

Array