Other ID: 85 Leg 3A; FRNL 85-3A
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: eastern Gulf of Mexico, United States, North America, North Atlantic;
Principal Investigator(s): David Twichell
Affiliate Investigator(s): Lindsay Parson - British Institute of Oceanographic Sciences (IOS)
Data Type(s): Sonar: Sidescan, Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Bubble Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Electro-Magnetic: Magnetics, Sonar: Single Beam, Location-Elevation: Navigation
Scientific Purpose/Goals: Long-range sidescan sonar survey of the Gulf of Mexico using the GLORIA system.
Start Date: 1985-10-02
Start Port/Location: Tampa, FL
End Date: 1985-10-22
End Port/Location: Key West, FL
Equipment Used: GLORIA sidescan, Air gun, Single channel hydrophone, Marine magnetometer, 3.5 kHz, 10 kHz Bathymetry, ABC navigation system, Loran-C, GPS (wh)
Information to be Derived:
Summary of Activity and Data Gathered: GLORIA Sidescan Sonar: 6,557 km; 10 kHz: 6,734 km; 3.5 kHz: 6,738 km; Airgun: 6,578 km; Magnetometer: 6,712 km.
Staff: David Twichell, Page Valentine, Robert F. Commeau, Steve Mateus
Notes: Original Center People field contained: Dave Twichell - Ch. Sci., Robert Commeau - geologist, Steve Mateus - geologist, Page Valentine - geologist.
Lubinski, D.J., and Twichell, David C., 1989, Magnetic and bathymetric data from R/V FARNELLA Cruises FRNL85-1, 85-2, and 85-3 in the U.S. Gulf of Mexico EEZ: U.S. Geological Survey Open-File Report 89-156, 6 p. URL: http://pubs.er.usgs.gov/publication/ofr89156, download PDF.
Twichell, D., Paskevich, V.F,, 1996, GLORIA sidescan-sonar field data and navigation data collected in the Gulf of Mexico during R/V FARNELLA cruises in 1982 and 1985: U.S. Geological Survey Open-File Report 96-707, CD-ROM, URL: http://woodshole.er.usgs.gov/publications/of96-707/OPR96_707/INTRO.HTM.
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: http://pubs.usgs.gov/of/2005/1071/.
Twichell, D.C., McGregor, Bonnie A., and Lubinski, David J., 1989, Seismic-reflection data from R/V FARNELLA Cruises FRNL82-7, FRNL85-1, FRNL85-2, and FRNL85-3A in the U.S. Gulf of Mexico EEZ: U.S. Geological Survey Open-File Report 89-549, 7 p., URL: http://pubs.er.usgs.gov/usgspubs/ofr/ofr89549, download PDF.