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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1981-030-FA

Other ID: 81-G-13

Status: Completed

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

Funding Program(s):

Principal Investigator(s): John S. Schlee, Kim D. Klitgord

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Electro-Magnetic: Gravity, Seismics: Multichannel, Seismics: Sub Bottom Profiler, Electro-Magnetic: Magnetics, Location-Elevation: Navigation

Scientific Purpose/Goals: Primary purpose was to survey the buried paleoshelf edge along the south side of Georges Bank using the DFS V high-resolution multichannel seismic reflection system. The second objective was to survey the buried grabens along the north side of Georges Bank, south of Martha's Vineyard and Long Island.


Start Port/Location: Woods Hole, MA

End Port/Location: Woods Hole, MA

Start Date: 1981-08-22

End Date: 1981-09-13

Equipment Used: 3.5 kHz, Multichannel seismics, Geometrics G-856 magnetometer, Western Geophysical Integrated Navigation System, Bell model XI Pendulous Accelerometer Gravity System

Information to be Derived: Morphology;

Summary of Activity and Data Gathered: The Georges Bank portion of the survey was not completed due to loss of the streamer. Magnetic and gravity anomaly data were collected to aid interpretation. Gravity: 3100 km; Magnetics: 2350 km; Bathymetry: 2350 km; 3.5 kHz seismics: 2350 km; Multichannel seismics: 2350 km.

Staff: Deborah Hutchinson, Barry Irwin, David Mason, Barbara Ann McKinney, Gregory Miller, David Nichols, John S. Schlee, David W. Folger, Kim D. Klitgord, James E. Dodd, Paul Bowker, Elizabeth Coward, Jack Connell

Affiliate Staff:
Robin Bell
Nick Zihlman (Reston) - Geologists; Robert Douthart - Nav. tech.

Notes: Original Center People field contained: Kim Klitgord and John Schlee - co-Chief Scientists; Dave Folger, Robin Bell, Ann Swift, Betsy Coward, Debbie Hutchinson, Nick Zihlman (Reston) - Geologists; Dave Nichols, Greg Miller, Jack Connell - Seismic techs.; David Mason, Paul Bowker - Airgun techs.; James Dodd, Robert Douthart, Barry Irwin - Nav. techs.
Project = Framework studies for the Resource Assessment Program, Framework studies for the Resource Assessment Program


Georges Bank, Long Island shelf west of Nantucket Shoals, United States, North America, North Atlantic;

North: 41.5 South: 38.5 West: -74 East: -66.25


photo of Gyre



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Multichannel seismics --- Multichannel
1981-030-FA-SE-002 ( microfilm of )
1981-030-FA-SE-003-01 ( SEGY seismic data rceovered from 9 track)
1981-030-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
3.5 kHz --- Sub Bottom Profiler
Geometrics G-856 magnetometer --- Magnetics
1981-030-FA-GP-002 ( Digital tape(s) of NV-INS, NV-INS-EDIT, GR-L&R, NV,GR, NV,GR-FINAL, NV-INS-FINAL, )
Bell model XI Pendulous Accelerometer Gravity System --- Gravity
1981-030-FA-GP-001 ( Digital tape(s) of NV-INS, NV-INS-EDIT, GR-L&R, NV,GR, NV,GR-FINAL, NV-INS-FINAL, )
Western Geophysical Integrated Navigation System --- Navigation
1981-030-FA-LN-001 ( Navigation trackline plot for field activity 81030)
1981-030-FA-LN-002-01 ( Navigation data recovered from 9 track tape)

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