USGS - science for a changing world

USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1980-003-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Kurt Grove

Affiliate Investigator(s): Jack Morelock - UPR

Information Specialist(s):

Data Type(s): Sampling: Geology, Sonar: Single Beam, Location-Elevation: Navigation

Scientific Purpose/Goals: Second sampling off Rio de la Plata after passage of Hurricane David to determine post-storm recovery and seasonal variation in the shelf sediments.


Start Port/Location:

End Port/Location:

Start Date: 1980-01-17

End Date: 1980-01-18

Equipment Used: Grab sampler - Shipek, Echosounder, Raytheon radar, Plane table-transit-radios triangulation

Information to be Derived: Samples and chemical analysis;

Summary of Activity and Data Gathered: The first day, 29 stations were occupied and sediment was recovered. The second day, rough weather prevented further sampling and planned dives. Depth recorder indicated 10-12 sec. waves with as much as 18-foot heights in 50 feet of water. Turbid water unlike the previous day covered the entire shelf. The turbid boundary followed the contour of the shelf break, probably indicating turbidity due to wave resuspension of mud.

Staff: Kurt Grove

Affiliate Staff:
Jack Morelock - Univ. Puerto Rico; Jose Muniz - PRGS; Nelson Espinell - PRGS



insular shelf off Rio de la Plata, Puerto Rico, United States, North America, North Atlantic;

North: 18.7 South: 18.5 West: -66.5 East: -66.25


photo of Jean A
Jean A



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Grab sampler - Shipek --- Geology
Echosounder --- Single Beam
1980-003-FA-SE-001 ( microfilm of )
Raytheon radar --- Navigation
Plane table-transit-radios triangulation --- Navigation

Accessibility FOIA Privacy Policies and Notices

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