Summary Information for Field Activity 1978-032-FA

Area of Operations: northern Blake Plateau, United States, North America, North Atlantic

Dates: September 29, 1978 to October 19, 1978

Chief scientist: Pete Popenoe

Objectives: Assess types and frequencies of environmental hazards that may be encountered on the northern Blake Plateau; study the shallow geologic section to define these geologic hazards using high-resolution geophysical profiling gear on a 28-km grid; and test the shipboard gravity system to obtain gravity coverage of the northern Blake Plateau.

Type of Activity: Seismic profiling;

Information to be derived: Environmental hazards map

Summary: Airgun: 3570 km; Minisparker: 3487 km; 3.5 kHz: 3565 km.

Contact: Pete Popenoe (ppopenoe@usgs.gov)

InfoBank: uses the identifier I-73-78-SE. Visit this site for more information.

Related Links:

- Download 78032.kml to view this field activity in Google Earth

Platform Info:

ISELIN, COLUMBUS

Publications resulting from these data

Popenoe, P., and Manheim, F.T.,2001, Origin and history of the Charleston Bump--geological formations, currents, bottom conditions, and their relationship to Wreckfish habitats on the Blake Plateau, in Sedberry, G.R., ed., Island in the Stream--Oceanography and Fisheries of the Charleston Bump: American Fisheries Society Symposium, v. 25: p. 43-94

Popenoe, Peter,1980, Single-channel seismic-reflection profiles collected on the northern Blake Plateau, 29 September to 19 October 1978: U.S. Geological Survey Open-File Report 80-1265, 4 p.. (Available as a PDF version)

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Data Types and Locations:

Geophysics

Navigation

Southern track chart with dates and hourly tic marks.

Northern track chart with dates and hourly tic marks.

Middle track chart with dates and hourly tic marks.

Navigation data recovered from 9 track tape

Logs

Chief Scientist's cruise report, track chart, and daily log.

Seismics

Sonar