Other ID: CHES 86-1
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: central Chesapeake Bay, United States, North America, North Atlantic;
Principal Investigator(s): Stephen Colman
Affiliate Investigator(s): Jeff Halka, MGS; Woody Hobbs, VIMS
Data Type(s): Seismics: Boomer, Seismics: Air Gun / Water Gun, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Sidescan, Location-Elevation: Navigation
Scientific Purpose/Goals: Collection of high-resolution seismic reflection and sidescan sonar data in order to define the geology and shallow structure of the Chesapeake Bay.
Start Date: 1986-09-22
End Date: 1986-10-03
Equipment Used: ORE GeoPulse, Benthos AQ-4 10-element hydrophone streamer, Datasonics SST 220 sub-bottom 3.5k, EG&G Model SMS 960 Seafloor Mapping System, Loran-C
Information to be Derived:
Summary of Activity and Data Gathered: Two ships were used for this cruise: R/V DAN MOORE (Cape Fear Tech) for first week; R/V DISCOVERY (MGS) for second week of survey. Cooperators: Virginia Institute of Marine Science (VIMS), Maryland Geological Survey (MGS), and Cape Fear Tech. All equipment performed extremely well with the exception of the sidescan sonar system which failed completely on the first day due to a cable break. Seismic reflection records collected and very good except for areas that contained biogenic gas. Records clearly show entire quaternary and upper part of the Tertiary sequence of deposits. Cruise completed the basic seismic reflection grid between mouth of the bay and the Patuxent River begun by earlier two cruises.
Staff: David Nichols, Stephen Colman, Ronald C. Circe
Notes: Original Center People field contained: Steve Colman, Chief Scientist; Ron Circe; Dave Nichols, Technician.