USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1976-011-FA

Other ID: FAY 013, Leg Charlie; CORPUS 31/39

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Gary W. Hill

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Sampling: Geology, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sampling: Biology, Biological Field Study: Experiments, Imagery: Photo, Environmental Data: Dissolved Oxygen, Environmental Data: Temperature, Location-Elevation: Navigation

Scientific Purpose/Goals: General objective of the Gulf of Mexico Continental Slope project is to define the possible extent of unstable sediments on the slope and estimate the degree of instability in selected areas. The first phase of the slope project involved acquisition and interpretation of 11,233 statute miles of high-resolution seismic data throughout the study area. Western Geophysical Company of America collected the geophysical data incuding fathometer profiles, 3.5 kHz sub-bottom profiles and 1000 joule sparker profiles. From these data, a map of the shallow surface geological features of the slope was produced. Using this information, specific sites were chosen for deep gulf cruises aboard the FAY. High density seismic profiling was done at each site followed by a sediment sampling program.


Start Date: 1976-04-18

Start Port/Location: New Orleans, LA

End Date: 1976-05-05

End Port/Location: Corpus Christi, TX

Equipment Used: Hydroplastic corer, EG&G sparker, 3.5 kHz, Smith-MacIntyre grab, Corer - gravity, Corer - slow, Benthos model 372 camera and strobe, InterOceans temperature, depth and dissolved oxygen profiling instrument, Integrated Navigation System

Information to be Derived: Sea floor map; Morphology;

Summary of Activity and Data Gathered: Minisparker profiles: 1579 km; 3.5 kHz EDO profiles: 398 km; Piston cores: 17; Hydroplastic cores: 16; Smith-MacIntyre samples: 20; Core logs: 39A, B, C; Bottom photo stations: 17; Oxygen traces: 0; Gravity cores: 0.

Staff: Gary W. Hill, Ronald J. Miller, Carroll Pyle, Kenneth Roberts, Michael Dorsey, Robert Vitaglione, Stanley Lindquist

Affiliate Staff:
Jim Woods
Scott Heald
Dee Haines
Tom Tatum; Texas A&I Univ.: Ronald C. Circe; Texas A&M Univ.: Charles Katherman
Marty Robinson
Bruce Sidner; Western Geophysical: Paul Bereznak

Notes: Original Center People field contained: Gary W. Hill - Ch. Sci., Ronald Miller, Jim Woods, Jack Kindinger, Cary Pyle, Ken Roberts, Mike Dorsey, Bob Vitaglione, Scott Heald, Dee Haines, Tom Tatum, and Stan Linquist.
Project = Gulf of Mexico Continental Slope, Gulf of Mexico Continental Slope


outer continental shelf, Texas, Louisiana, Mississippi, United States, Gulf of Mexico, North America, North Atlantic;

North: 29 South: 27 West: -96 East: -89


photo of Fay



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Hydroplastic corer --- Geology
EG&G sparker --- Sparker
1976-011-FA-SE-001 ( microfilm of GULF SEISMIC PROFILES)
3.5 kHz --- Sub Bottom Profiler
Smith-MacIntyre grab --- Biology
Corer - gravity --- Geology
Corer - slow --- Geology
Benthos model 372 camera and strobe --- Photo
InterOceans temperature, depth and dissolved oxygen profiling instrument --- Dissolved Oxygen
Integrated Navigation System --- Navigation
1976-011-FA-LN-001-02 ( Track Map Charlie X (pdf file) Plotted track map for Charlie X, Lines 1 through 7 with shotpoints.)
1976-011-FA-LN-001-03 ( Track Map Charlie XI-XII (pdf file) Plotted track map for Charlie XI-XII, Lines 1 through 11 with shotpoints.)
1976-011-FA-LN-001-01 ( Track Map Charlie IXA (pdf file) Plotted track map for area Charlie IXA, Lines 1 through 12 with shotpoints.)
1976-011-FA-LN-001-04 ( Track Map Charlie XIII (pdf file) Plotted track map for area Charlie XIII, Lines 1 through 13 with shotpoints.)