USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1976-007-FA

Other ID: FAY 012, Leg Bravo; CORPUS 31/38

Status: Completed

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

Funding Program(s):

Principal Investigator(s): James S. Booth

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: 1976-03-28

Start Port/Location: New Orleans, LA

End Date: 1976-04-14

End Port/Location: New Orleans, LA

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: Grain size analysis; Sea floor map; Morphology;

Summary of Activity and Data Gathered: Minisparker profile: 1052 km; 3.5 kHz EDO: 556 km; Piston cores: 12; Hydroplastic cores: 20; Smith-MacIntyre samples: 14; Dissolved oxygen traces: 11; Bottom photo stations: 14; Gravity cores: 0; Core log: #37A; Sparker log: #37B; Sparker log: #37C.

Staff: James S. Booth, Carroll Pyle, George Wiley, Stanley Lindquist, Robert Vitaglione

Affiliate Staff:
Jim Woods
Scott Heald
Brian Murphy
Tom Tatum
Dee Haines; Paul Milner
Bob Waush
J. R. Moore (Univ. of Wisconsin); Tom Ferebee (Texas A&M University); Hendrick Hinkes (Western Geophysical)

Notes: Original Center People field contained: James Booth, Cary Pyle, Jim Woods, Scott Heald, George Wiley, Brian Murphy, Tom Tatum, Stan Linquist, Bob Vitaglione, Dee Haines, and Jack Kindinger.
Project = Gulf of Mexico Continental Slope, Gulf of Mexico Continental Slope


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

North: 31 South: 17 West: -100 East: -80


photo of Fay


Booth, J.S., 1979, Results of laboratory tests on surficial sediments from the upper continental slope, northern Gulf of Mexico: 11, download PDF.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Hydroplastic corer --- Geology
EG&G sparker --- Sparker
1976-007-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
1976-007-FA-LN-001 ( Navigation trackline plot for field activity 76007)