USGS - science for a changing world

USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1977-041-FA

Other ID: 78-3

Status: Completed

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

Funding Program(s):

Principal Investigator(s): James V. A. Trumbull

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Sonar: Sidescan

Scientific Purpose/Goals: Conduct minisparker reconnaissance to locate offshore sand deposits that could be recovered for use in the island.


Start Port/Location:

End Port/Location:

Start Date: 1977-12-15

End Date: 1977-12-17

Equipment Used: Klein 531 sidescan

Information to be Derived: Sea floor map;

Summary of Activity and Data Gathered: Ship days: 3; Man days: 12; Minisparker lines: 90 km. In all the cruise went very well. All our records were taken in 4 to 20 meters of water during rough seas with recorder on 1/4 sec sweep 1/2 sec fire rate, and filter settings at around 1200 Hz low pass, 200 Hz high pass, amp at 24 to 30 DB. No down time on the equipment; all lines completed.


Affiliate Staff:

Notes: Project = Puerto Rico Marine Geology Co-op, Puerto Rico Marine Geology Co-op


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

North: 18 South: 17.8 West: -67.3 East: -67


photo of Jean A
Jean A



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Klein 531 sidescan --- Sidescan

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Questions or Comments? Contact CMGDS Team