Field Activity 1979-003-FA

Identifier 1979-003-FA
Purpose Obtain high-resolution data from eastern portion of St. Croix, in addition to obtaining some core data for ground truth on a suspected sand body. In the Saba Island area off St. Thomas - St. John, make current measurements, obtain surface samples, and core the reef masses to obtain samples for dating.
Location eastern St. Croix, southern St. Thomas - St. John Platform, U.S. Virgin Islands, United States, Caribbean, North America, North Atlantic;
Summary Approximately 100 km of high-resolution data were acquired (mostly minisparker). The 1032 system lacked the power to penetrate the hard carbonate surface. The few centimeters of sand could not be resolved. 5 days of continuous current data were acquired, the last two under winter storm conditions. Vibracores: 4; 120 cm drill core: 1 (30 cm recovery); surface samples: 12.
Comments Original Center People field contained: Chuck Holmes; Dave Folger (3/18 - 3/24); Ronald Miller; Jack Kindinger; Neal Lillard.
Platform
Sarima
Black Coral
68 feet
Itinerary
Start (port not specified) 1979-03-18
End (port not specified) 1979-03-31
Days in the field 13
Bounds
West -65
East -64.6
North 18.45
South 18.3

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators David Folger
Crew members
Ronald J. Miller
Scientist, Staff
David Folger
Scientist, Staff
Charles W. Holmes
Scientist, Staff
Lillard, Neal
Scientist, Staff

Data types and categories

Data category: Seismics, Sampling, Location-Elevation
Data type: Sparker, Sub Bottom Profiler, Geology, Navigation

Documents: Notes and log books

Name Description
Cruise report Chief Scientist's report including personnel, equipment, data acquired, comments, and map of drill site and geophysical lines. The map is hard to read and appears to have some information cut off.

Equipment used

Equipment Usage description Data types Datasets
Del Norte 26 sparker Sparker (no data reported)
ORE 140 transceiver/1036 transducer sub-bottom profiler Sub Bottom Profiler (no data reported)
Alpine Vibracorer Geology (no data reported)
Well drilling Geology (no data reported)
Motorola Mini-Ranger III Navigation (no data reported)

Publications

Samples collected during this field activity