USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1978-022-FA

Other ID: 78-3

Status: Completed

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

Funding Program(s):

Location: Southeast Georgia Embayment, Georgia Bight, United States, North America, North Atlantic;

Principal Investigator(s): Mahlon M. Ball

Affiliate Investigator(s):

Information Specialist(s):

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.

Vehicle(s):

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

Affiliate Staff:
Vernon J. Henry - geologist
Skidaway Institute of Oceanography; Jesse Hunt
Jr. - oceanographer
BLM-New Orleans

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.
Project = South Atlantic Environmental Program, South Atlantic Environmental Program

Location Map:

Platform(s):

photo of State Arrow
State Arrow
photo of Diaphus
Diaphus

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Video camera - deep sea --- Video
Grab sampler - Van Veen --- Geology
Teledyne single-channel 300-500J 40-tip minisparker --- Sparker
XBT --- Temperature
Water sampler --- Chemistry
Northstar 6000 LORAN-C --- Navigation
1978-022-FA-LN-001 ( Navigation trackline plot for field activity 78022)