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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1979-020-FA

Other ID: GS 7903-6

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Peter Popenoe

Affiliate Investigator(s):

Information Specialist(s): Janet B. Burke

Data Type(s): Electro-Magnetic: Gravity, Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Multichannel, Seismics: Sub Bottom Profiler

Scientific Purpose/Goals: Cape Hatteras area: High-resolution seismic profiling of the continental shelf, slope and rise for a regional assessment of environmental hazards to petroleum exploration and development. Nature and frequency of slumping, faulting, cut and fill, scour, sand waves, and karst topography were examined. Two lines were run to define a growth fault seen on deep CDP data in area. Offshore Georgia Continental Shelf: Survey conducted to assess possible pipeline corridor routes on the Georgia shelf. High-resolution seismic reflection data were used to assess Pleistocene river channels, scour, sand waves, cut and fill, faulting, shallow gas, and reefs and hardground development. Red Snapper Sink: Detailed high-resolution seismic lines were put across and near the sink to assess the seismic nature of the karst development in the area. Florida Shelf: A high-resolution seismic reflection profile was run between Red Snapper Sink and Cape Canaveral to trace the subsurface expression of the karst surface.


Start Port/Location: Charleston, SC

End Port/Location: Miami, FL

Start Date: 1979-08-10

End Date: 1979-08-29

Equipment Used: 3.5 kHz, Air gun, Multichannel seismics, Single channel hydrophone, EG&G 234, LaCoste-Romberg gravimeter G-179, Geometrics G-856 magnetometer, Western Geophysical Integrated Navigation System, Bell 5M-203 gravity meter

Information to be Derived: Morphology;

Summary of Activity and Data Gathered: Airgun (1, 5, 20, and 40 cu. in. were used based on water depth and ringing problems): 3290 km; 3.5 kHz: 3290 km; Uniboom: 1352 km; Gravity: 4940 km; Magnetics: 1935 km.

Staff: Janet B. Burke, Elizabeth Coward, James E. Dodd, Alan Goodman, Barry Irwin, John Larson, Marshal Otter, Kenneth E. Parolski, Peter Popenoe

Affiliate Staff:
Robert Douthart - Tech.
Gerald McCarthy - tech.
Steven Schertzer - watch; David Geever - INS nav.
USGS/WHOI; David Mason - compressor tech.

Notes: Original Center People field contained: Peter Popenoe - Ch. Sci., Janet Burke - cruise curator, Elizabeth Coward - watch, James Dodd - INS nav., Robert Douthart - Tech., Alan Goodman - tech., Barry Irwin - INS nav., John Larson - Tech., Gerald McCarthy - tech., Marshall Otter - watch, Kenneth Parolski - tech., Steven Schertzer - watch.
Project = Southeastern Atlantic OCS Environmental Assessment, Southeastern Atlantic OCS Environmental Assessment


Cape Hatteras, Cape Romain, North Carolina, Continental Shelf, Slope, Rise, Georgia Continental Shelf, Crescent Beach, Cape Canaveral, Florida Continental Shelf, Red Snapper Sink, United States, North America, North Atlantic;

North: 35 South: 28.5 West: -81.25 East: -74.5


photo of James  M Gilliss
James M Gilliss


Popenoe, P., 1983, High-resolution seismic reflection profiles collected August 4 to 28, 1979, between Cape Hatteras and Cape Fear, North Carolina, and off Georgia and northern Florida (Cruise GS-7903-6): U.S. Geological Survey Open-File Report 83-512, 3 p., URL:

Popenoe, P., 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., URL:


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Western Geophysical Integrated Navigation System --- Navigation
1979-020-FA-LN-001 ( Navigation trackline plot for field activity 79020)
1979-020-FA-LN-002-01 ( Zip archive of navigation data)
3.5 kHz --- Sub Bottom Profiler
EG&G 234 --- Boomer
LaCoste-Romberg gravimeter G-179 --- Gravity
Bell 5M-203 gravity meter --- Gravity
1979-020-FA-GP-002-01 ( geophysical data)
Geometrics G-856 magnetometer --- Magnetics
1979-020-FA-GP-001-01 ( geophysical data)
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1979-020-FA-SE-004-01 ( Paper record section of Lines 5, 6, 7, )
1979-020-FA-SE-002 ( microfilm of )
1979-020-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
1979-020-FA-SE-003 ( analog tape of seismic data)
Multichannel seismics --- Multichannel
1979-020-FA-SE-004-02 ( SEGY data files)
Air gun --- Air Gun / Water Gun

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