Field Activity 1977-020-FA

Identifier 1977-020-FA
Alternate names Decca 2/Bravo; CORPUS 49/54
Purpose Obtain fresh large-volume cores to aid in the contracted study into the origin of the 27 degree geochemical anomaly, a region on the shelf where an increase in copper, nickel and manganese is apparent.
Location south Texas outer continental shelf, Texas, Gulf of Mexico, United States, North America, North Atlantic;
Summary Although the prime mission of the cruise was to obtain cores for geochemical study, attainment of high-resolution profiles was considered important for proper sedimentologic interpretation of the cores. Cores were taken over the entire shelf with sites selected on the basis of previous work. In addition, 20 cores were concentrated around the 27 degree latitude. Hydroplastic cores: 50; Minisparker: 500 km; 7/3.5 kHz Sub-bottom profiler: 600 km.
Info derived Samples and chemical analysis; Morphology;
Comments Original Center People field contained: USGS-Corpus Christi: Chuck Holmes - Ch. Sci., Jim Booth, Mike Dorsey, Jack Kindinger, Neal Lillard, Tim Martin, Ronald Miller, Cyndi Rice, Ken Roberts, Charles Stelting, James Woods.
Related activities
1977-019-FA: Cruise legs
Platform
Decca Profiler
Length 120 feet.
Itinerary
Start (port not specified) 1977-05-28
End (port not specified) 1977-06-05
Days in the field 9
Bounds
West -97.3
East -96
North 28.25
South 26

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Charles W. Holmes
Crew members
Ronald J. Miller
Scientist, Staff
Dorsey, Michael
Scientist, Staff
Charles W. Holmes
Scientist, Staff
Roberts, Kenneth
Scientist, Staff
Rice, Cynthia
Scientist, Staff
Lillard, Neal
Scientist, Staff
Stelting, Charles
Scientist, Staff
James Booth
Scientist, Staff
Affiliate staff Tim Martin, James Woods - USGS-Corpus Christi; Lorri Felepek - U. Michigan

Data types and categories

Data category: Seismics, Location-Elevation
Data type: Sparker, Navigation

Documents: Notes and log books

Name Description
Cruise report Chief Scientist's cruise report including, shipment movement, personnel, equipment and data acquisition notes, and track map.

Equipment used

Equipment Usage description Data types Datasets
Sparker Sparker (no data reported)
Loran-A Navigation (no data reported)

Publications

Samples collected during this field activity