USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1978-004-FA

Other ID: OC 39, Leg II

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Charles W. Holmes

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Seismics: Sparker, Seismics: Sub Bottom Profiler, Electro-Magnetic: Magnetics, Location-Elevation: Navigation

Scientific Purpose/Goals: Collect high-resolution seismic reflection data on the northern Virgin Islands shelf to provide information for use in the sand resource investigation of the area.


Start Date: 1978-02-07

Start Port/Location: Savannah, GA

End Date: 1978-02-15

End Port/Location: San Juan, Puerto Rico

Equipment Used: Del Norte 26 sparker, Edo Western 2.5 kHz sub-bottom profiler, Marine magnetometer, Del Norte, transponder net, Raytheon radar

Information to be Derived:

Summary of Activity and Data Gathered: Minisparker: 600 km; 2.5 kHz: 400 km; Magnetic data: 600 km.

Staff: Charles W. Holmes, John S. Schlee, Peter Popenoe, John M. Aaron, Frank W. Jennings, Alan Goodman, Richard E. Sylwester, Kurt Grove, Elizabeth Coward

Affiliate Staff:
Donna Darlington

Notes: Original Center People field contained: Charles (Chuck) W. Holmes - Chief Scientist; John Aaron, Elizabeth (Betsy) Coward, Donna Darlington, Alan Goodman, Kurt Grove, Frank Jennings, Jack Kindinger, Peter Popenoe, John Schlee, Richard Sylwester.


St. Thomas, U.S. Virgin Islands Insular Shelf and Passage, Caribbean Sea, United States, North America, North Atlantic;

North: 18.35 South: 18.25 West: -65.1 East: -64.8


photo of Oceanus



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Del Norte 26 sparker --- Sparker
Edo Western 2.5 kHz sub-bottom profiler --- Sub Bottom Profiler
Marine magnetometer --- Magnetics
Del Norte, transponder net --- Navigation
1978-004-FA-LN-001 ( Navigation trackline plot for field activity 78004)
Raytheon radar --- Navigation