USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1986-022-FA

Other ID: CHES 86-1

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Stephen Colman

Affiliate Investigator(s): Jeff Halka, MGS; Woody Hobbs, VIMS

Information Specialist(s):

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.

Vehicle(s):

Start Date: 1986-09-22

Start Port/Location:

End Date: 1986-10-03

End Port/Location:

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

Affiliate Staff:
Jeff Halka
MGS
Chief Scientist; Woody Hobbs
VIMS
Chief Scientist

Notes: Original Center People field contained: Steve Colman, Chief Scientist; Ron Circe; Dave Nichols, Technician.
Project = Geology of Chesapeake Bay, Geology of Chesapeake Bay

Location:

central Chesapeake Bay, United States, North America, North Atlantic;

Boundaries
North: 38 South: 37.3 West: -76.5 East: -75.7

Platform(s):

photo of Discovery
Discovery
photo of Dan Moore
Dan Moore

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
ORE GeoPulse --- Boomer
Benthos AQ-4 10-element hydrophone streamer --- Air Gun / Water Gun
Boomer
Sparker
1986-022-FA-SE-002 ( analog tape of seismic data)
1986-022-FA-SE-001 ( microfilm of )
Datasonics SST 220 sub-bottom 3.5k --- Sub Bottom Profiler
EG&G Model SMS 960 Seafloor Mapping System --- Sidescan
1986-022-FA-SO-001 ( microfilm of )
Loran-C --- Navigation
1986-022-FA-LN-002 ( Floppy disk(s) containing NV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, )
1986-022-FA-LN-001-01 ( Composite trackline map with line numbers, dates and times for DISCOVERY 85-2(FA 85031) and DAN MOORE/DISCOVERY 86-1 (FA 86022).)
1986-022-FA-LN-003 ( Floppy disk(s) containing NV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, )