Marine Geoscience Data System

Processed Data Sets

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Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:SCS

Events

Line Log

Locale

File Format

ASCII

Quality

2

Alsop, Joyce

Data Set References

Seismic:Reflection:SCS

Data DOI: 10.1594/IEDA/500119

Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:SCS

Events

Line Log

Locale

File Format

SEGY

Quality

2

Alsop, Joyce

Data Set References

Seismic:Reflection:SCS

Processed multichannel seismic data on the Rockall Plateau and East Flank of Reykjanes Ridge, acquired during the R/V Maurice Ewing survey EW9302 (1993)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:SCS

Events

Line Log

Locale

File Format

PDF

Quality

2

Alsop, Joyce

Data Set References

Raw Data Sets

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Seismic:Navigation:ShotTime

Data DOI: 10.1594/IEDA/319441

Seismic Shot Point Navigation Data from the Reykjanes Ridge acquired during R/V Maurice Ewing expedition EW9302 (1993)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:SCS

LDEO

Events

Line Log

Locale

ReykjanesRidge

SpreadingCenter

File Format

ASCII

Quality

1

Details

This dataset, Seismic Shot Point Navigation data, provides the primary seismic navigation source for this cruise and should be used for seismic data processing.

Manley, Patricia

Middlebury College

Data Set References

Seismic:Reflection:SCS

Data DOI: 10.1594/IEDA/319436

Raw Single-Channel Seismic Shot Data from the Reykjanes Ridge acquired during R/V Maurice Ewing expedition EW9302 (1993)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:SCS

LDEO

Events

Line Log

Locale

ReykjanesRidge

SpreadingCenter

File Format

SEGY

Quality

0

Details

Single channel seismics data

Manley, Patricia

Middlebury College

Data Set References

Event Logs

Line (EW9302)

Device Info

Related Devices

Manley, Patricia

Middlebury College

Line (EW9302)

Device Info

Seismic:SCS

Platform: Maurice Ewing (Array)

Manley, Patricia

Middlebury College

Seismic Acquisition Parameters

Download As Text

EW9302_ACQ001 (Lines: All Lines 1-8)

Source Information

AirGun (BOLT:1500C)

Source Number: 6

Volume (cu in): 1350

Pressure (psi): 2000

Distance to Near Channel (m): 150

Distance to Antenna (m): 95

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 4

Near Channel Number: 1

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS

WGS84

Acquisition System

Digital

Name: DSS240

Sample Interval (msec): 2

Record Length (sec): 10

Details

Number of Channels: All field data files have 8 traces. It seems likely that the SCS traces are 1-4 and sonobuoys were recorded on one or more of traces 5-8

Distance from Antenna to Source = 95m

Distance from Antenna to Channel 1 = 150m

Distance from Antenna to Channel 2 = 165m

Distance from Antenna to Channel 3 = 190m

Distance from Antenna to Channel 4 = 240m

Cruise Report: Towing speed and streamer tow cable length were both adjusted to make source and receiver depths roughly equal in an attempt to improve the overall resolution and signal to noise ratio of the system.