Other ID: 80-G-9A
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: continental slope, Cape Hatteras area, North Carolina; continental shelf, slope and rise, Virginia state line to Cape Hatteras, North Carolina; and Straits of Florida, Vero Beach to Miami, Florida, United States, North America, North Atlantic;
Principal Investigator(s): Peter Popenoe
Data Type(s): Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Sidescan
Scientific Purpose/Goals: Leg 1, September 18-25, 1980, Mid-range sidescan sonar: Survey with the Lamont mid-range sidescan sonar system in the lease block areas of Sale 56 in order to determine environmental conditions or hazards prior to leasing of these blocks for petroleum development. Test the utility of the mid-range sidescan sonar system in mapping of the shelf-edge reef system. Examine areas of bedding terminations on the shelf and slope south of Cape Hatteras believed to be slump scars. Determine the utility of the sidescan-sonar system in mapping salt diapirs. Legs 2 and 3, September 26 - October 14, 1980, High-resolution seismic reflection: Regionally access the types and frequencies of environmental hazards or constraints to petroleum exploration or development in the area from Cape Hatteras to the Virginia state line. Survey the shelf, slope and rise on a 25 km grid as part of a regional shallow stratigraphic study. Tie the drill holes ASP-7, ASP-8, AMCOR 6006, and ASP-5 with one continuous line as an aid in regional stratigraphic studies. Study the offshore extent and nature of the Florida aquifer and possible structure or leaks (exposures) affecting the aquifer.
Start Date: 1980-09-18
Start Port/Location: Little Creek, Norfolk, VA
End Date: 1980-10-14
End Port/Location: Dodge Island, Miami, FL
Equipment Used: EG&G Mark 1A sidescan sonar, 3.5 kHz, Air gun, Teledyne single-channel 300-500J 40-tip minisparker, Northstar 6000 LORAN-C, GPS (wh), Single channel hydrophone
Information to be Derived:
Summary of Activity and Data Gathered: Leg 1, September 18-25, 1980: 335 km sidescan sonar, 3.5 kHz, and minisparker data collected. Legs 2-3, September 26 - October 14, 1980: 2,950 km airgun and 3.5 kHz data collected.
Staff: Kenneth Bayer, Janet B. Burke, Cathy Cashman, Robert F. Commeau, Elizabeth Coward, James E. Dodd, Alan Goodman, Raymond E. Hall, Barry Irwin, C. Wesley Lombard, David Mason, Sally Needell, Kenneth E. Parolski, Peter Popenoe
Notes: Original Center People field contained: Leg 1: Kathy Cashman, Co-Chief Scientist/Record marker; Peter Popenoe, Co-Chief Scientist/Navigation; James Dodd, Navigation; Barry Irwin, Navigation; Wes Lombard, Sidescan winch operator; Dave Mason, Sidescan winch operator; Betsy Coward, Record marker; Sally Wood-Needell, Record marker; Janet Burke, Cruise curator/Record marker; Ken Parolski, Sidescan flyer; Al Goodman, Sidescan flyer; Ken Bayer, Sidescan flyer; Legs 2-3: Peter Popenoe, Co-Chief Scientist; James Dodd, Navigation; Ken Parolski, Elec. tech.; Wes Lombard, Record marker; Dave Mason, Compressor; Janet Burke, Cruise curator/Record marker; Betsy Coward, Record marker; Kathy Cashman, Record marker; Sally Wood-Needell, Navigation; Al Goodman, Elec Tech; Ray Hall, Record Marker; Bob Commeau, Record Marker.
Popenoe, P., and Meyer, Fred W., 1983, Description of single-channel, high-resolution, seismic-reflection data collected from the continental shelf, slope, and upper rise between Cape Hatteras, North Carolina, and Norfolk, Virginia; and Vero Beach and Miami, Florida (Cruise 80-G-9): 4 URL: http://pubs.er.usgs.gov/usgspubs/ofr/ofr83515, download PDF.
Popenoe, P., Cashman, K. V., Chayes, Dale, and Ryan, W. B. F., 1981, Mid-range sidescan-sonar images covering parts of proposed tracts for OCS Lease Sale 56 and contiguous areas, Manteo, Cape Fear, and adjacent quadrangles off North Carolina: 6, download PDF.