Field Activity 1986-022-FA

Identifier 1986-022-FA
Alternate names CHES 86-1
Purpose Collection of high-resolution seismic reflection and sidescan sonar data in order to define the geology and shallow structure of the Chesapeake Bay.
Location central Chesapeake Bay, United States, North America, North Atlantic;
Summary 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.
Comments Original Center People field contained: Steve Colman, Chief Scientist; Ron Circe; Dave Nichols, Technician. Project = Geology of Chesapeake Bay, Geology of Chesapeake Bay
Platform
Discovery
Length 51 feet; beam 16 feet; draft 4 feet.
Dan Moore
Length: 85 feet.
Itinerary
Start (port not specified) 1986-09-22
End (port not specified) 1986-10-03
Days in the field 12
Bounds
West -76.5
East -75.7
North 38
South 37.3

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Stephen Colman
Crew members
David R Nichols
Scientist, Staff
Ronald C. Circe
Scientist, Staff
Stephen Colman
Scientist, Staff
Affiliate principal Jeff Halka, MGS; Woody Hobbs, VIMS
Affiliate staff Jeff Halka, MGS, Chief Scientist; Woody Hobbs, VIMS, Chief Scientist

Data types and categories

Data category: Seismics, Sonar, Location-Elevation
Data type: Boomer, Air Gun / Water Gun, Sparker, Sub Bottom Profiler, Sidescan, Navigation

Documents: Notes and log books

Name Description
Cruise report Chief Scientist's report including personnel, purpose, equipment, equipment performance, cruise summary, and trackmap.
Data inventory Cruise Curator's inventory of field data.

Equipment used

Equipment Usage description Data types Datasets
ORE GeoPulse Boomer (no data reported)
Benthos AQ-4 10-element hydrophone streamer Air Gun / Water Gun, Boomer, Sparker 2
Datasonics SST 220 sub-bottom 3.5k Sub Bottom Profiler (no data reported)
EG&G Model SMS 960 Seafloor Mapping System Sidescan 1
Loran-C Navigation 3

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1986-022-FA-SE-001 Benthos AQ-4 10-element hydrophone streamer microfilm of Nancy K. Soderberg
1986-022-FA-SE-002 Benthos AQ-4 10-element hydrophone streamer analog tape of seismic data Nancy K. Soderberg
1986-022-FA-SO-001 EG&G Model SMS 960 Seafloor Mapping System microfilm of Nancy K. Soderberg
1986-022-FA-LN-001-01 Loran-C Composite trackline map with line numbers, dates and times for DISCOVERY 85-2(FA 85031) and DAN MOORE/DISCOVERY 86-1 (FA 86022). Nancy K. Soderberg
1986-022-FA-LN-002 Loran-C Floppy disk(s) containing NV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, Nancy K. Soderberg
1986-022-FA-LN-003 Loran-C Floppy disk(s) containing NV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, NAV-MEGAPULSE, Nancy K. Soderberg

Publications

Samples collected during this field activity