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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1972-004-FA

Other ID: HUNT 02; Leg II

Status: Completed

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

Funding Program(s):

Principal Investigator(s): James M. Robb

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Electro-Magnetic: Gravity, Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Boomer, Seismics: Sonobuoy, Sonar: Sidescan

Scientific Purpose/Goals: Cruise was the second part of the search for drilling sites along the north flank of Georges Bank.


Start Port/Location:

End Port/Location:

Start Date: 1972-08-04

End Date: 1972-08-14

Equipment Used: Boomer, Seismic refraction, Single channel hydrophone, LaCoste-Romberg gravimeter G-179, EG&G Model 260 sidescan sonar, Loran-C, Marine magnetometer

Information to be Derived:

Summary of Activity and Data Gathered: Gravity over Georges Bank area was successfully measured at 109 stations. Those data and an interpretation are reported in Hendricks and Robb, 1973.

Staff: William Dillon, Raymond E. Hall, John Hendricks, Frank W. Jennings, Charles J. O'Hara, James M. Robb, Byron Ruppel

Affiliate Staff:
Wallace Bothner - UNH; Nathaniel Richardson - Republic of Liberia; Norman Buckley - GFA
Philip Clark - GFA
David Davis - GFA; Gary Stuckey - GFA
Robert White - PST



Georges Bank, United States, North America, North Atlantic,

North: 42 South: 41 West: -69 East: -66


photo of Hunt


Hendricks, J.D., and Robb, James M., 1973, Gravity measurements in the vicinity of Georges Bank: Geological Society of America Bulletin, GSA Bulletin, v. 84 no. 12.

Oldale, R.N., Hathaway, J.C., Dillon, W.P., Hendricks, J.D., and Robb, J.M., 1974, Geophysical observations on northern part of Georges Bank and adjacent basins of Gulf of Maine: The American Association of Petroleum Geologists Bulletin, AAPG Bulletin, v. 58 no. 12.

Schlee, J., Mattick, R. E., Taylor, D. J., Girard, O. W., Grow, J., Rhodehamel, E. C., Perry, W. J., Jr., Bayer, K. C., Furbush, M., Clifford, C. P., and Lees, J. A., 1975, Sediments, structural framework, petroleum potential, environmental conditions, and operational considerations of the United States North Atlantic Outer Continental Shelf: U.S. Geological Survey Open-File Report 75-353, 179 p..


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
LaCoste-Romberg gravimeter G-179 --- Gravity
Boomer --- Boomer
Marine magnetometer --- Magnetics
Seismic refraction --- Sonobuoy
1972-004-FA-LN-001-02 ( Zip archive containing Legs 2 and 3 sonobuoy refraction profiles trackline map.)
Loran-C --- Navigation
1972-004-FA-NL-001-01 ( Field log containing Loran-C navigation positions, sonobuoy, gravity meter, magnetometer, CSP airgun, and 3.5 kHz Uniboom data acquisition notes.)
1972-004-FA-LN-001-01 ( Track map for Site 1, August 11, 1972 depicting Continuous Seismic Profiling (CSP) lines, 3.5 kHz seismics lines, magnetics, and Sonobuoy traverses.)
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1972-004-FA-SE-001 ( microfilm of )
1972-004-FA-SE-002 ( analog tape of seismic data)
EG&G Model 260 sidescan sonar --- Sidescan
1972-004-FA-SO-001 ( Collection of paper record displays of sidescan sonar data for lines )

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