Marine Geoscience Data System

Seismic Reflection/Refraction Data at the Academic Seismic Portal

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Expeditions / Compilations

EW0501

Maurice Ewing

Processed

Raw

Acquisition Information

Raw Data Sets

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Seismic:Ancillary

Acquisition information relating to Multi-Channel Seismic Data acquired from the Chicxulub impact crater in the western Gulf of Mexico during the R/V Maurice Ewing expedition EW0501 (2005)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

LDEO

Events

Line Log

Locale

File Format

ASCII

Quality

Details

seismic acquisition information file

Gulick, Sean

UTIG

Seismic:Reflection:MCS

Data DOI: 10.1594/IEDA/322305

Raw Multi-Channel Seismic Shot Data from the Chicxulub Crater in the western Gulf of Mexico acquired during the R/V Maurice Ewing expedition EW0501 (2005)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

GulfOfMexico

Gulf

File Format

SEGY

Quality

Details

These files have a sample interval of 2 milliseconds.

Gulick, Sean

UTIG

Christeson, Gail

Barton, Penny

University of Cambridge

Melosh, Henry

Data Set References

Seismic:WideAngle:OBS (Repository unknown)

Data on Hold Until:

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:OBS

Locale

File Format

NotProvided

Quality

Gulick, Sean

UTIG

Data Set References

Event Logs

Line (EW0501)

Device Info

Seismic:MCS

LDEO

Platform: Maurice Ewing (Array)

Seismic:MCS

Platform: Maurice Ewing (Array)

Gulick, Sean

UTIG

Line (EW0501)

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Gulick, Sean

UTIG

Seismic Acquisition Parameters

Download As Text

EW0501_ACQ001 (Lines: 1R,2,2A(partial),2R,4A-4C,6,6A,8,10;Sequence 1-9(shotpoint 391))

Source Information

AirGun (BOLT:1500C)

Volume (cu in): 6947

Pressure (psi): 2000

Depth (m): 6

Shot Interval (m): 50

Distance to Near Channel (m): 180

Distance to Antenna (m): 55.3

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Cable Depth (m): 7

Near Channel Number: 480

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

TASMON P(Y)-code GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 2

Record Length (sec): 14.336

Details

Source Number = 20

There was a 25 min source ramp up from 1 to 20 guns at the start of each window of operation. See EW0501.cruiserpt.pdf for details

EW0501_ACQ002 (Lines: 2A(partial); Sequence 9(shotpoints 421-543))

Source Information

AirGun (BOLT:1500C)

Volume (cu in): 6947

Pressure (psi): 2000

Depth (m): 6

Shot Interval (m): 50

Distance to Near Channel (m): 12

Distance to Antenna (m): 55.3

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Cable Depth (m): 7

Near Channel Number: 480

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

TASMON P(Y)-code GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 2

Record Length (sec): 14.336

Details

Source Number = 20

There was a 25 min source ramp up from 1 to 20 guns at the start of each window of operation. See EW0501.cruiserpt.pdf for details.

EW0501_ACQ003 (Lines: 1,2B,3-3R,4D-4R,5-5R,6B-6RA,7R,9,11B-25,OBS; Sequences 10-40)

Source Information

AirGun (BOLT:1500C)

Volume (cu in): 6947

Pressure (psi): 2000

Depth (m): 6

Shot Interval (m): 50

Distance to Near Channel (m): 112.5

Distance to Antenna (m): 55.3

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Group Spacing (m): 12.5

Cable Length (m): 6000

Cable Depth (m): 7

Near Channel Number: 480

Used Active Tail Buoy: true

Used Compass Birds: true

Nav System

TASMON P(Y)-code GPS

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 2

Record Length (sec): 14.336

Details

Source Number = 20

There was a 25 min source ramp up from 1 to 20 guns at the start of each window of operation. See EW0501.cruiserpt.pdf for details.

edu.utexas.ig:ew0501_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

Tasmon P-Code GPS

WGS84

Acquisition System

Digital

Name: Syntrak

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: Syntrak

Acquisition System Type: digital

Seismic Nav System: Tasmon P-Code GPS

Survey Datum: WGS84

Source to Near Channel (m): 180: jan20-26, 15: 56 (1st part 2A); 13: for Jan 26, 16:07-16:56; 112.5: for Jan 26, 17:26-Feb 17. Note: Spectra calculated exact source receiver locations which were then recorded in UK00A format files

Antenna to Source (m): 55.3

Number of Channels Recorded: 480

Channel Length (m): 12.5

Cable Receiver Depth (m): 7

Source Volume (cubicInches): 6947

Source Pressure (bars): 138

Source Number: 20

Source Depth (m): 6

Shot Control: distance

Shot Interval (s or m): 50

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

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