USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1970-007-FA

Other ID: GOSNOLD 164

Status: Completed

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

Funding Program(s):

Location: western Gulf of Maine, Jeffreys Ledge, Jeffreys Basin, Casco Bay, Massachusetts Bay, Cape Cod Bay, Stellwagen Bank, Massachusetts, New Hampshire, Maine, United States, North America, North Atlantic;

Principal Investigator(s): John S. Schlee

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Sampling: Geology, Sampling: Biology, Seismics: Sub Bottom Profiler, Sonar: Single Beam, Location-Elevation: Navigation

Scientific Purpose/Goals: The main purpose was to complete bottom sediment sampling in the nothern quadrangle and to do additional 3.5 kHz seismic profiling as a supplement to those taken in earlier cruises of the GOSNOLD and VERRILL last year.

Vehicle(s):

Start Date: 1970-06-10

Start Port/Location: Woods Hole, MA

End Date: 1970-06-16

End Port/Location: Woods Hole, MA

Equipment Used: Grab sampler - Van Veen , Dietz-Lafond snapper, Grab sampler, ORE 140 transceiver/1036 transducer sub-bottom profiler, Echosounder, Loran-A, Visual navigation, Raytheon radar

Information to be Derived: Grain size analysis;

Summary of Activity and Data Gathered: A total of 154 stations were occupied during the seven days at sea. The GOSNOLD steamed a total of 691 miles during which we obtained approximately 600 miles of sonic profiles. Samples were taken 2-4 miles apart and were selected utilizing a 1/40,000 scale bathymetric map of the sea floor compiled by the Coast & Geodetic Survey. Selection was key to a variety of topographic features in the area, some only a few hundred meters across. Despite very complex topography, the type of sediment was restricted to relatively few types - broadly outlining topographic provinces rather than particular features. Sonic profiles showed penetration 20 fms over soft bottom and a multilayered arrangement of reflecting horizons over basins. Some of the reflectors appear to pinch out toward the basin edge or to have an erosional pinch out at the edge.

Staff: John S. Schlee, Robert N. Oldale, Charles J. O'Hara

Affiliate Staff:
David W. Folger - Middlebury College; John Milliman - WHOI; Dan Jipa - Visiting investigator
WHOI; June 14: Robert Doyle - State Geologist
Maine Geological Survey; Art Hussey - Professor of Geology
Bowdoin College

Notes:
Project = Continental Margin Program, Continental Margin Program

Location Map:

Platform(s):

photo of Gosnold
Gosnold

Publications

(Samples) Buczkowski, B.J., and Kelsey, S.A., 2007, Archival Policies and Collections Database for the Woods Hole Science Center's Marine Sediment Samples: U.S. Geological Survey Open-File Report 2006-1187, version 1.0.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Grab sampler - Van Veen --- Geology
Dietz-Lafond snapper --- Biology
Geology
Grab sampler --- Biology
Geology
1970-007-FA-SC-001 ( CORE, GRAB samples)
ORE 140 transceiver/1036 transducer sub-bottom profiler --- Sub Bottom Profiler
1970-007-FA-SE-001 ( microfilm of )
Echosounder --- Single Beam
Loran-A --- Navigation
1970-007-FA-LN-001 ( microfilm of )
Visual navigation --- Navigation
Raytheon radar --- Navigation