Skip Navigation
USGS - science for a changing world

Woods Hole Science Center

Skip Navigation

Summary for Field Activity Number 1984-001-FA

Alternate Leg ID: 84-1

Area of Operations: Vieques, Puerto Rico, United States, North America, North Atlantic

Dates: January 16, 1984 to January 20, 1984

Objectives: Vibracore the Escollo de Arenas in Vieques, Puerto Rico.

Type of Activity:

Information to be derived:

Summary: The sudden availability of the JEAN A altered our original plans of leasing a small boat to do vibracoring on the sand deposit. The sea state was lousy (2-3 m swells, 1-2 m seas and winds of 15-20 knots). Spring tides substantially increased the velocity of tidal currents (normal tidal current often exceeds 150 cm/sec or about 3 knots). Vibracoring was not possible during maximum flood or ebb, and even during slack water divers often worked tied to anchors. About a dozen cores were obtained from the shoal and nearby areas. The cores will be opened and analyzed this week. The information they generate will help our evaluation of the Escollo as a sand resource for Puerto Rico.

USGS Project Number: PR CO-OP

Contact: Rafael Rodriguez ()

Map for Area of Operations :

Map of field activity boundary.

Platform Info:
photo of JEAN A
JEAN A
Skip Navigation

USGS Coastal and Marine Geology Program

We are part of the USGS Coastal and Marine Geology Program. Please visit our other science centers at:

  1. St. Petersburg, FL
  2. Menlo Park, CA

or search our web sites:

Data Sites

Skip USGS links group

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov logo U.S. Department of the Interior | U.S. Geological Survey
End of USGS links group
URL: quashnet.er.usgs.gov/data/1984/84001/index.html
Page Contact Information: WHSC Webmaster
Page Last Modified: Tuesday, 25-Nov-2014 14:11:45 EST