Other ID: GOSNOLD 164
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Principal Investigator(s): John S. Schlee
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.
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
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;
Buczkowski, B.J., and Kelsey, S.A., 2007, Archival policies and collections database for the Woods Hole Science Center's marine sediment samples: URL: http://pubs.usgs.gov/of/2006/1187/.
Tucholke, B.E., Oldale, R. N., and Hollister, C. D., 1972, Map showing echo-sounding survey (3.5 kHz) of Massachusetts and Cape Cod Bays, western Gulf of Maine: , download PDF.