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Summary Information for Field Activity 2001-010-FA

Area of Operations: Pulley Ridge, southeastern Gulf of Mexico, Florida, United States, North America, North Atlantic

Dates: September 05, 2001 to September 12, 2001

Chief scientist: Dave Twichell

   Robert Halley, USGS-St. Pete; Al Hine, USF

Objectives: Use sidescan sonar, multibeam bathymetry, and high-resolution seismic data to map the geologic framework and distribution of deep water reefs west of the Florida Keys. An ROV was used to video the deep-water reef to determine extent and composition of benthic biota.

Type of Activity: Seismic profiling; Sea floor mapping;Sea floor mapping

Information to be derived:

Summary: Cruise ended early due to World Trade Center terrorism and tropical depression forming in the study area.

Contact: Dave Twichell (

InfoBank: uses the identifier S-1-01-GM. Visit this site for more information.

Related Links:

Click to get Google Software - Download 01010.kml to view this field activity in Google Earth

Platform Info:

Publications resulting from these data

Cross, VeeAnn A., Twichell, David C., Halley, Robert B., Ciembronowicz, Kate T., Jarrett, Bret D., Hammar-Klose, Erika S., Hine, Al C., Locker, Stan D., and Naar, Dave F.,2006, GIS compilation of data collected from the Pulley Ridge deep coral reef region: U.S. Geological Survey Open-File Report 2005-1089, DVD-ROM. (Also available at

Hammar-Klose, E.S., Twichell, D.C., and Worley, C.R.,2003, Archive of sidescan-sonar data and DGPS navigation data collected during USGS Cruise SUNC01010, Pulley Ridge, Gulf of Mexico, 05 September - 12 September, 2001: U.S. Geological Survey Open-File Report 2002-155, DVD-ROM

Data Types and Locations:


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