USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1971-007-FA

Other ID: UGEO Leg 7; CORPUS 22

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Louis E. Garrison

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Electro-Magnetic: Gravity, Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Bubble Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Single Beam

Scientific Purpose/Goals: Conduct a geophysical survey.


Start Date: 1971-12-11

Start Port/Location: Charlotte Amalie, St. Thomas, U.S. Virgin Islands

End Date: 1971-12-15

End Port/Location: Charlotte Amalie, St. Thomas, U.S. Virgin Islands

Equipment Used: Echosounder, Loran-C, Magnetometer (wh), Gravity meter (wh), Geomechanique streamer, Sparker system

Information to be Derived:

Summary of Activity and Data Gathered: Collected bathymetry (3.5 kHz) and gravity data.

Staff: James Case, Louis E. Garrison

Affiliate Staff:
Dennis Cox (Geologist); PMG - Harry Hill (Electronics Technician)
James Nicholson (Electronics Technician)

Notes: Original Center People field contained: Louis Garrison; James Case (Geophysicist); Dennis Cox (Geologist); Harry Hill (Electronics Technician); James Nicholson (Electronics Technician).
Project = International Decade of Ocean Exploration (IDOE), International Decade of Ocean Exploration (IDOE)


Puerto Rico, Caribbean Sea, United States, North America, North Atlantic;

North: 21 South: 15 West: -69 East: -63


photo of United Geo I
United Geo I



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Echosounder --- Single Beam
1971-007-FA-BA-001 ( Bathymetry data in InfoBank)
NGDC MGD77 data ( )
Loran-C --- Navigation
1971-007-FA-LN-001 ( Navigation Data in InfoBank)
Magnetometer (wh) --- Magnetics
1971-007-FA-GP-001 ( Magnetics data in InfoBank)
Gravity meter (wh) --- Gravity
NGDC MGD77 data ( )
1971-007-FA-GP-002 ( Gravity data in InfoBank)
Geomechanique streamer --- Temperature
Sparker system --- Sparker