USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1980-007-FA

Other ID: 80-4; 80-G-4

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Location: Texas-Louisiana continental slope, Gulf of Mexico, United States, North America, North Atlantic;

Principal Investigator(s): Arnold H. Bouma

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Bubble Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sampling: Biology, Sampling: Geology, Sampling: Chemistry, Biological Field Study: Experiments, Location-Elevation: Navigation

Scientific Purpose/Goals: Collect data from 3 types of intraslope basins related to salt diapirism: Type I (Gyre Basin) = submarine canyon blocked by active diapirs; Type II (Orca Basin) = interdomal basin formed by upward moving diapirs leaving central area in near original depth; and Type III (Carancahua) = collapse basin caused by either extension of sediment or salt solution from top of diapir. The plan was to study in detail each type of basin using seismic reflection, core/sample gear, bottom camera, CTD, and water bottles.

Vehicle(s):

Start Date: 1980-05-18

Start Port/Location: Galveston, TX

End Date: 1980-06-01

End Port/Location: Galveston, TX

Equipment Used: Air gun, SEI streamer with 40 MD5 hydrophones, Teledyne single-channel 300-500J 40-tip minisparker, ORE 140 transceiver/1036 transducer sub-bottom profiler, Box corer, Water sampler, Smith-MacIntyre grab, Corer - gravity, Corer - slow, Northstar 6000 LORAN-C

Information to be Derived:

Summary of Activity and Data Gathered: 125 seismic lines: 2301 km 3.5 kHz records, 1438 km minisparker records, 1005 km airgun records; Cores: 5 box cores, 1 gravity core.

Staff: Barry Irwin, Arnold H. Bouma, Janet B. Burke, Richard E. Sylwester, John J. Dillon, John West, Jo Ann Charba, Tom Rice, Charles Stelting, James Willingham, Richard Farrow

Affiliate Staff:
TAMU: Les Shepard
Theo Duis
Mary Feeley; URI: Wayne Fissette; LSU: Gail Erlebacher

Notes: Original Center People field contained: USGS-Woods Hole: Barry Irwin, Janet Burke, Richard Sylwester; USGS-Corpus Christi: Arnold Bouma - Ch. Sci., Jack Kindinger, Jo Ann Charba, John West, James Willingham, Richard Farrow, Tom Rice, Chuck Stelting, John Dillon.
Project = Continental Slope Studies - Intraslope Basins, Continental Slope Studies - Intraslope Basins

Location Map:

Platform(s):

photo of Gyre
Gyre

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Air gun --- Air Gun / Water Gun
SEI streamer with 40 MD5 hydrophones --- Air Gun / Water Gun
Boomer
Bubble Gun
Sparker
1980-007-FA-SE-001 ( analog tape of seismic data)
Teledyne single-channel 300-500J 40-tip minisparker --- Sparker
ORE 140 transceiver/1036 transducer sub-bottom profiler --- Sub Bottom Profiler
Box corer --- Biology
Geology
Water sampler --- Chemistry
Smith-MacIntyre grab --- Biology
Geology
Corer - gravity --- Geology
Corer - slow --- Geology
Northstar 6000 LORAN-C --- Navigation
1980-007-FA-LN-002 ( Digital tape(s) of NV, )
1980-007-FA-LN-001-01 ( Cruise track map.)