Other ID: 81-LH-1; LONGHORN-81-USGS1
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Peter Johnson
Affiliate Investigator(s): Chuck Holmes - USGS-Corpus Christi, TX
Information Specialist(s):
Data Type(s): Sonar: Sidescan, Seismics: Sub Bottom Profiler, Location-Elevation: Navigation
Scientific Purpose/Goals: Obtain seismic reflection data in the Florida Straits and the Florida Shelf; photograph the Miocene(?) ledge to confirm the existence of mineral deposits.
Vehicle(s):
Start Port/Location: Key West, FL
End Port/Location: Miami, FL
Start Date: 1981-05-27
End Date: 1981-06-09
Equipment Used: Klein 531 sidescan, ORE 140 transceiver/1036 transducer sub-bottom profiler, Del Norte, transponder net, Loran-C
Information to be Derived: Grain size analysis; Sea floor map; Morphology;
Summary of Activity and Data Gathered: Sidescan: 550 km; Minisparker: 1603 km; 3.5 kHz: 608 km; Core (rotary drill): 1; Diver samples: 3; Camera stations: 3.
Staff: Charles W. Holmes, Ronald J. Miller, Peter Johnson, James C. McFarlen
Affiliate Staff:
Paul Schoeder
Notes: Original Center People field contained: USGS-Corpus Christi: Chuck Holmes - Ch. Sci., Ronald Miller, Jack Kindinger, Paul Schoeder, James McFarlen; USGS-Woods Hole: Peter Johnson.
Project = West Florida Shelf, West Florida Shelf
Location:
Florida Straits, West Florida shelf, Florida, Gulf of Mexico, United States, North America, North Atlantic;
Boundaries | |||
---|---|---|---|
North: 26 | South: 24 | West: -84.5 | East: -81 |
Platform(s):
Longhorn |
Title | Survey Equipment | Description |
---|---|---|
Cruise report | (document not focused on specific equipment) | Brief chief scientist's cruise report including personnel list, equipment and a tabulation of information. |
Survey Equipment | Survey Info | Data Type(s) | Data Collected |
---|---|---|---|
Klein 531 sidescan | --- | Sidescan | 1981-015-FA-SO-001 (analog tape of seismic data) |
ORE 140 transceiver/1036 transducer sub-bottom profiler | --- | Sub Bottom Profiler | 1981-015-FA-SE-001 (analog tape of seismic data) |
Del Norte, transponder net | --- | Navigation | |
Loran-C | --- | Navigation | 1981-015-FA-LN-001 (LONGHORN 81-1 Track Map (pdf file) West Florida Shelf composite track map including GYRE 81-8 (FA 81012), May 15-20, 1981; LONGHORN 81-1 (FA 81015), May 27-June 9, 1981; SEA ANGEL (no FA #), Aug 10?-29?, 1981; and BELLOWS (FA 82014), May 24-June 6, 1982.) 1981-015-FA-LN-002 (Digital tapes of NV and NV-NSTAR data: inv. # 1061, 1110, 1129, 2292, and 2542 thru 2547.) |