Summary Information for Field Activity 1976-023-FA

Area of Operations: southeast Georgia Embayment, Georgia, United States, North America, North Atlantic

Dates: July 02, 1976 to July 15, 1976

Chief scientist: Lyle McGinnis

Objectives: Geophysical reconnaissance of the southeast Georgia Embayment for regional environmental analyses.

Type of Activity: Seismic profiling;

Information to be derived: Morphology;

Summary: 13 lines were run normal to the coastline between 33 N and 29 30 N. Two lines comprised one long tie-line parallel to the shelf break. In addition, four short lines were run in the area between latitude 30 40 N to 31 10 N and longitudes 80 30 W to 80 W. The lines and numbering system was continued from FAY Cruise 017 to the north at 18. Lines on 018 were numbered from 18 to 32 and the dogleg following each line was considered part of the preceeding line. 12 sonobuoy refraction profiles were completed along lines 31 and 32, all on the Blake Plateau. Sonobuoy stations were numbered from 2 to 13 with #2 on the north and #13 on the south. 3.5 kHz: 2515 km; Sparker: 2808 km; Airgun: 3019 km; Sonobuoy: 12 stations, 268 km; Magnetics: 3019 km; Gravity: 2848 km.

Contact: Stanley Locker ()

InfoBank: uses the identifier F-18-76-SE. Visit this site for more information.

Related Links: http://pubs.usgs.gov/of/of97-512/

- Download 76023.kml to view this field activity in Google Earth

Platform Info:

FAY

Publications resulting from these data

Paskevich, Valerie F., and Soderberg, Nancy K.,1997, Navigation and geophysical data collected onboard the R/V FAY from 1975-1976: U.S. Geological Survey Open-File Report 97-512, CD-ROM. (Also available at http://pubs.usgs.gov/of/of97-512/)

Popenoe, Peter, and Spalding, J.S.,1988, Isopach and structure contour maps of the Miocene and post-Miocene sediments in the southeast Georgia Embayment, Florida-Hatteras Shelf, offshore Georgia: U.S. Geological Survey Open-File Report 88-397, 12 p.. (Also available at http://pubs.er.usgs.gov/djvu/OFR/1988/ofr_88_397.djvu)

Popenoe, P., and Manheim, F.T.,2001, Origin and history of the Charleston Bump--geological formations, currents, bottom conditions, and their relationship to Wreckfish habitats on the Blake Plateau, in Sedberry, G.R., ed., Island in the Stream--Oceanography and Fisheries of the Charleston Bump: American Fisheries Society Symposium, v. 25: p. 43-94

O'Hara, Charles J., and Oldale, Robert N.,1987, Maps showing geology, shallow structure, and bedform morphology of Nantucket Sound, Massachusetts: U.S. Geological Survey Miscellaneous Field Studies Map MF-1911, 4 sheets. (Available as a PDF version). (Also available at http://pubs.er.usgs.gov/usgspubs/mf/mf1911)

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Data Types and Locations:

Bathymetry

Geophysics

Gravity and Magnetic data

Navigation

Northern Track Map (pdf file) Trackline map for northern lines with 15 minute fixes.

Southern Track Map (pdf file) Trackline map for Lines 18-30 with 15 minute fixes.

Scans of various trackmaps for FAY 018 (TIFs and PDFs).

Navigation data

Logs

Chief Scientist's cruise summary of ship movement, personnel, equipment and data acquisition notes.

Seismics