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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1983-002-FA

Other ID: AST 83-2

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Robert N. Oldale

Affiliate Investigator(s): Ralph Lewis - CT DEP

Information Specialist(s):

Data Type(s): Location-Elevation: Navigation, Seismics: Boomer, Seismics: Sub Bottom Profiler, Sonar: Sidescan

Scientific Purpose/Goals: (1) Define geology and shallow structure of central Long Island Sound; (2) determine geologic framework and Quaternary development of the study area; and (3) identify and map potential geologic hazards.


Start Port/Location: Woods Hole, MA

End Port/Location: Woods Hole, MA

Start Date: 1983-05-23

End Date: 1983-06-04

Equipment Used: Single channel hydrophone, EG&G 234, Edo Western Sidescan and 2.5 kHz sub-bottom system, Loran-C

Information to be Derived: Sea floor map; Morphology;

Summary of Activity and Data Gathered: Uniboom data were very good (excellent penetration and good resolution) except in areas where the acoustic signal was attenuated by gas in the sediments. Sidescan sonar records were satisfactory. Uniboom: 656 km; Sidescan sonar: 422 km.

Staff: Jack Connell, Robert N. Oldale

Affiliate Staff:
Ralph Lewis - CT DEP
Ch. Sci.; Stewart Richards
GFA (May 27 - June 2)

Notes: Original Center People field contained: Bob Oldale, geologist (May 26); Stewart Richards, GFA (May 27 - June 2); Jack Connell - ET.
Project = Rhode Island Sound Co-op; New England Coastal Geology, Rhode Island Sound Co-op; New England Coastal Geology


central Long Island Sound, Clinton to New Haven, Connecticut, United States, North America, North Atlantic;

North: 41.24 South: 40.9 West: -73 East: -72.5


photo of Asterias


Poppe, L.J., Williams, S. J., Moser, M. S., Forfinski, N. A., Stewart, H. F., and Doran, E. F., 2008, Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound: Journal of Coastal Research, v. 24 no. 1, doi: 10.2112/06-0743.1.

Poppe, L.J., Denny, J.F., Williams, S.J., Moser, M.S., Forfinski, N.A., Stewart, H.F., and Doran, E.F., 2007, The geology of Six Mile Reef, Eastern Long Island Sound: U.S. Geological Survey Open-File Report 2007-1191, DVD-ROM, URL:

Poppe, L.J., Paskevich, V.F., Lewis, R.S., and DiGiacomo-Cohen, M.L., 2002, Geological framework data from Long Island Sound, 1981-1990; a digital data release: U.S. Geological Survey Open-File Report 02-002, DVD-ROM, URL:


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
EG&G 234 --- Boomer
Edo Western Sidescan and 2.5 kHz sub-bottom system --- Sub Bottom Profiler
1983-002-FA-SO-002 ( microfilm of )
1983-002-FA-SO-001 ( Collection of paper record displays of sidescan sonar data for lines )
Loran-C --- Navigation
1983-002-FA-LN-002-01 ( Navigation data)
1983-002-FA-LN-001 ( Navigation trackline plot for field activity 83002)
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1983-002-FA-SE-002 ( analog tape of seismic data)
1983-002-FA-SE-001 ( microfilm of )
1983-002-FA-SE-003 ( Scanned Profiles - 25 scanned record sections in TIFF format.)

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