1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System

Field Activity 1977-041-FA

Identifier 1977-041-FA
Alternate names 78-3
Purpose Conduct minisparker reconnaissance to locate offshore sand deposits that could be recovered for use in the island.
Location Cabo Rojo, Puerto Rico, Caribbean Sea, United States, North America, North Atlantic;
Summary 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.
Info derived Sea floor map;
Comments Project = Puerto Rico Marine Geology Co-op, Puerto Rico Marine Geology Co-op
Platform
Jean A
60 feet
Itinerary
Start (port not specified) 1977-12-15
End (port not specified) 1977-12-17
Days in the field 3
Bounds
West -67.3
East -67
North 18
South 17.8

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators James Trumbull
Crew members

Data types and categories

Data category: Sonar
Data type: Sidescan

Documents: Notes and log books

Name Description
Cruise report Tabulation of cruise data for fiscal year 1978 as part of the Puerto Rico Marine Geology Co-Op. Includes information for several field activities and a location map. Tabulation covers field activities 1977-036-FA, 1977-040-FA, 1977-041-FA, 1978-003-FA, 1978-016-FA, 1978-025-FA, and 1978-028-FA.

Equipment used

Equipment Usage description Data types Datasets
Klein 531 sidescan Sidescan (no data reported)

Publications

Samples collected during this field activity