USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1982-007-FA

Other ID: 82-3

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Juan Luis Trias

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Location-Elevation: Navigation, Seismics: Sparker

Scientific Purpose/Goals: Make high-resolution seismic profiles for reconnaissance into late Pleistocene and Holocene sea-level rise and coral reef history.


Start Date: 1982-02-19

Start Port/Location:

End Date: 1982-02-19

End Port/Location:

Equipment Used: Sparker system, Raytheon radar, Single channel hydrophone

Information to be Derived:

Summary of Activity and Data Gathered: Seismic lines: 27.78 km (15 nm).

Staff: David Nichols, Juan Luis Trias

Affiliate Staff:
Jack Morelock - USGS
scientist; Nelson Espinell - Field Technician
Puerto Rico DNR

Notes: Original Center People field contained: Juan Luis Trias - Ch. Sci.; Dave Nichols - electronics technician.


South coast of Puerto Rico, Guanica, Parguera, Puerto Rico, Caribbean Sea, United States, North America, North Atlantic;

North: 18 South: 17.75 West: -67.25 East: -66.8


photo of Jean A
Jean A



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Sparker system --- Sparker
Raytheon radar --- Navigation
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler