Field Activity 1991-041-FA

Identifier 1991-041-FA
Purpose Marine geologic maps of Puerto Rico Insular Shelf, Salinas to Jobos area and Caja de Muertos area by Trias and Uchupi, scale 1:40,000.
Location south coast of Puerto Rico, Caja de Muertos, Salinas, Jobos, Puerto Rico, United States, Caribbean Sea, North America, North Atlantic;
Summary Approximately 200 nautical miles of shallow seismic reflection data were collected in the nearshore waters of Caja de Muertos and Salinas-Jobos to study sub-bottom profiles. More than 200 surface samples have been analyzed for textural and chemical qualities and to delineate the boundaries of the sediment facies. The results of this investigation will be published in the Marine Geologic Map of Caja de Muertos and the Marine Geologic Map of Salinas to Jobos area. The marine geologic maps will provide reconnaissance level information on bathymetry, geologic structure, surficial sediment characteristics and coastal processes. These maps will be part of a geologic mapping program covering the Puerto Rico insular shelf that is being carried out by the U.S. Geological Survey in cooperation with the Puerto Rico Department of Natural Resources.
Platform
Jean A
60 feet
Itinerary
Start Ponce Harbor, Puerto Rico 1991-11-06
End Aquirre Harbor, Puerto Rico 1991-11-21
Days in the field 16
Bounds
West -66.7
East -66.1
North 18
South 17.8

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Juan Luis Trias
Crew members
Kenneth Parolski
Scientist, Staff
Affiliate principal Elazar Uchupi - WHOI
Affiliate staff Juan Luis Trias - SJFC, Milton Carlo - SJFC; Elazar Uchupi - WHOI

Data types and categories

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

Documents: Notes and log books

Name Description
Cruise report Chief Scientist's cruise report including personnel, objective, equipment, sample location maps, trackmaps.

Equipment used

Equipment Usage description Data types Datasets
Shipek grab Geology (no data reported)
Boomer Boomer (no data reported)
Motorola Mini-Ranger III Navigation 2
3.5 kHz Sub Bottom Profiler (no data reported)
Single channel hydrophone Air Gun / Water Gun, Boomer, Bubble Gun, Sparker, Sub Bottom Profiler 3

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1991-041-FA-LN-001 Motorola Mini-Ranger III Navigation trackline plot for field activity 91041 Nancy K. Soderberg
1991-041-FA-LN-002-01 Motorola Mini-Ranger III Navigation data recovered from floppy disk Nancy K. Soderberg
1991-041-FA-SE-001 Single channel hydrophone Collection of paper record displays of seismic data( 3.5K) for lines Nancy K. Soderberg
1991-041-FA-SE-002 Single channel hydrophone VHS digital tapes for line(s) 1, 2, 3, Nancy K. Soderberg
1991-041-FA-SE-003 Single channel hydrophone microfilm of Nancy K. Soderberg

Publications

Samples collected during this field activity