Other ID: 78-3
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Southeast Georgia Embayment, Georgia Bight, United States, North America, North Atlantic;
Principal Investigator(s): Mahlon M. Ball
Data Type(s): Imagery: Video, Sampling: Geology, Seismics: Sparker, Environmental Data: Temperature, Sampling: Chemistry, Location-Elevation: Navigation
Scientific Purpose/Goals: Study reefs and hardgrounds of the Georgia Bight to ground truth the seismic and sidescan sonar data; investigate firsthand the geologic origin and nature of the reefal features and their use as a marine habitat. Inspect bottom tripod instrument package on the shelf edge for scour, bottom conditions and composition, and document the extent of use of tripods as animal habitat. A minisparker line was planned to supplement existing data from the FAY 1975-1976 cruises and XBT observations are to be made to better define water masses associated with the tripods.
Start Date: 1978-08-15
Start Port/Location: Savannah, GA
End Date: 1978-08-19
End Port/Location: Savannah, GA
Equipment Used: Video camera - deep sea, Grab sampler - Van Veen , Teledyne single-channel 300-500J 40-tip minisparker, XBT, Water sampler, Northstar 6000 LORAN-C
Information to be Derived: Time series data; Habitat maps;
Summary of Activity and Data Gathered: Submersible dives: 8 (19 hours underwater); Photos; TV videos; Surface salinity samples: 44; Van Veen samples; XBT: 38; Minisparker.
Staff: Peter Popenoe, Mahlon M. Ball, Diane M. Eskenasy, Charles Paull, Stephanie Pfirman, Marlene Noble
Notes: Original Center People field contained: Mahlon Ball - Ch. Sci.; Diane Eskenasy - geologist, Marlene Noble - oceanographer, Charles Paull - geologist, Stephanie Pfirman - geologist, Peter Popenoe - geologist.