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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1999-002-FA

Other ID: none

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): David Twichell

Affiliate Investigator(s): Alan Cooper, USGS, Menlo Park

Information Specialist(s):

Data Type(s): Location-Elevation: Navigation, Location-Elevation: Transects, Seismics: Boomer, Seismics: Multichannel, Sonar: Sidescan

Scientific Purpose/Goals: Collection of regional high-resolution multichannel seismic data and Huntec seismic data as well as two detailed sidescan surveys to understand the distribution of gas hydrates on the upper continental slope in the Gulf of Mexico and their effect on sea floor processes.


Start Port/Location: Galveston, TX

End Port/Location: Galveston, TX

Start Date: 1999-04-09

End Date: 1999-04-22

Equipment Used: DGPS, Boomer, Multichannel seismics, Single channel hydrophone, SIS1000 Sidescan sonar, Benthos 7000

Information to be Derived:

Summary of Activity and Data Gathered: Not all the gear was run all the time, so the amounts of individual data types (in km) are as listed: High-resolution MCS data - 1400 km; Huntec boomer data - 900 km; SIS-1000 sidescan and Chirp sub-bottom data - 500 km.

Staff: Chris Anton, William Danforth, David Foster, Barry Irwin, David Nichols, Thomas O'Brien

Affiliate Staff:
Menlo Park - Jeff Brody
watchstander; Pat Hart
seismic processor; Larry Kooker
electronics tech; Walt Olson
mechanical tech; Hal Williams
mechanical tech. Graham Standen - Geoforce

Notes: Original Center People field contained: Chris Anton, watchstander; Bill Danforth, sidescan processing; Dave Foster, seismic processing; Barry Irwin, nav. tech.; Dave Nichols, electronics tech; Tom O'Brien, electronics tech.
Project = Gulf of Mexico Tectonics and Hydrates Projects, Gulf of Mexico Tectonics and Hydrates Projects


Gulf of Mexico, United States, North America, North Atlantic;

North: 28 South: 27.5 West: -93 East: -91.25


photo of Gyre


Foster, D.S., Twichell, D. C., Danforth, W. W., Irwin, B. J., Nichols, D. R., and O'Brien, T. F., 1999, Archive of SIS-1000 CHIRP subbottom data collected during USGS Cruise GYRE 99002, Gulf of Mexico, 9-22 April, 1999: U.S. Geological Survey Open-File Report 99-586, 3 CD-ROMs.

Twichell, D.C., Cross, VeeAnn A., Paskevich, Valerie F., Hutchinson, Deborah R., Winters, William J., and Hart, Patrick E., 2007, GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey: U.S. Geological Survey Open-File Report 2005-1071, DVD-ROM, URL:

Winters, W.J., Lorenson, T.D., Paull, C.K., Balut, Y., Boldina, O.M., Bout-Roumazeilles, V., Brunner, C.A., Chen, Y., Cooper, A., Dearmay, J.L., Geli, L., Hart, P.E., Kirby, S.H., Labails, C., Lynch, F.L., Matsumoto, R., Novosel, I., Rogers, R.E., Stern, L.A., Sultan, N., Trentesaux, A., and Ussler, W.I., 2007, Initial report of the IMAGES VIII/PAGE 127 gas hydrate and paleoclimate cruise on the RV MARION DUFRESNE in the Gulf of Mexico, 2-18 July 2002, Winters, W.J., Lorenson, T.D., and Paull, C.K., eds. U.S. Geological Survey Open-File Report 2004-1358, DVD-ROM, URL:


FAN 1999-002-FA has data viewable in the GeoMappApp/Virtual Ocean applications. To view this data in these applications go to and See the instructions for locating USGS data in these applications. You can also view the imagery created from the SEGY data at

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
DGPS --- Navigation
SIS1000 Sidescan sonar --- Sidescan
Sidescan mosaic ( )
Benthos 7000 --- Navigation
Multichannel seismics --- Multichannel
1999-002-FA-SE-001 ( Raw SEGY data)
Boomer --- Boomer
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
Chirp seismic data ( )

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