Skip Navigation
USGS - science for a changing world

Woods Hole Coastal and Marine Science Center

Skip Navigation

Summary Information for Field Activity 1984-005-FA

Area of Operations: western Long Island Sound, Connecticut, United States, North America, North Atlantic

Dates: May 16, 1984 to May 25, 1984

Chief scientist: Steve Colman

   Ralph S. Lewis - CT Geological and Natural History Survey

Objectives: (1) Define geology and shallow structure of western Long Island Sound; (2) determine geologic framework and Quaternary development of study area; (3) identify and map potential geologic hazards; and (4) simultaneously use and compare two types of hydrophone/amplifier/graphic recorder systems to determine which system is most suitable for this type of survey.

Type of Activity:

Information to be derived: Morphology;

Summary: Calm seas and few emergency course alterations allowed for consistent, well documented high-res seismic reflection data. In addition, the excellent resolution and penetration of the Innerspace hydrophone system, except in areas where gas deposits obscured the acoustic signal, produced clear, well-defined records from which the geology of western Long Island Sound can be ascertained. Original cruise plans called for the implementation of EDO Western sidescan sonar system to obtain sea-floor imagery. Unfortunately, the system malfunctioned the first sea day and was discontinued. Uniboom: 634 km.

Contact: Steve Colman (

InfoBank: uses the identifier U-1-84-LI. Visit this site for more information.

Related Links:

Click to get Google Software - Download 84005.kml to view this field activity in Google Earth

Platform Info:

Publications resulting from these data

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. (Also available at

Poppe, L. J., McMullen, K. Y., Williams, S. J., Crocker, J. M., and Doran, E. F.,2008, Estuarine sediment transport by gravity-driven movement of the nepheloid layer, Long Island Sound: Geo-Marine Letters, v. 28, no. 4: p. 245-254. (Also available at

Data Types and Locations:


Skip USGS links group

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov logo U.S. Department of the Interior | U.S. Geological Survey
End of USGS links group
Page Contact Information: WHSC Webmaster
Script last modified Wednesday, 17th December, 2014 @ 10:53am