Other ID: Party 77, B-1-75-GM
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Louis E. Garrison
Affiliate Investigator(s): Western Geophysical Company of America
Information Specialist(s):
Data Type(s): Location-Elevation: Navigation, Seismics: Sparker, Seismics: Sub Bottom Profiler
Scientific Purpose/Goals: Contractor Western Geophysical Company of America will conduct a high-resolution geophysical survey on the upper continental slope in the Gulf of Mexico, north of latitude 26 N, in water depths between 100 m and 1,000 m with seismic lines spaced from 7.5 to 18.5 km apart in a reconnaissance grid pattern.
Vehicle(s):
Start Port/Location: Port Mansfield, TX
End Port/Location:
Start Date: 1975-07-28
End Date: 1975-12-20
Equipment Used: Sparker , Loran-C, Single channel hydrophone, 3.5 kHz
Information to be Derived:
Summary of Activity and Data Gathered: The released data consist of single-channel geophysical records from a 3.5 kHz sub-bottom profiler and a 1,000 joule sparker operated simultaneously throughout 18,074 km of ship's track: Lines 1A, 2 thru 214, 20A, 22A, 26A, 30A, and 69A. Data quality for all records at all water depths was good to excellent. Other data collected includes bathymetry and magnetics.
Staff:
Affiliate Staff:
Survey contracted to Western Geophysical Company of America.
Notes: Data borrowed by PCMSC (Alan Cooper); returned ~1/30/2018
Navigation was by Offshore Navigation, Inc.
Location:
upper continental slope, Texas to Florida, Gulf of Mexico, United States, North America, North Atlantic;
Boundaries | |||
---|---|---|---|
North: 31.5 | South: 25.75 | West: -96.25 | East: -84.5 |
Platform(s):
Western Beacon |
Survey Equipment | Survey Info | Data Type(s) | Data Collected |
---|---|---|---|
Sparker | --- | Sparker | |
Loran-C | --- | Navigation | |
Single channel hydrophone | --- | Air Gun / Water Gun Boomer Bubble Gun Sparker Sub Bottom Profiler | 1975-013-FA-SE-001 (microfilm of ) |
3.5 kHz | --- | Sub Bottom Profiler |