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U.S. Geological Survey Open-File Report 02-002

Geological Framework Data from Long Island Sound, 1981-1990:

A Digital Data Release

West-Central Long Island Sound: UCONN84-1 Cruise Report


Skip Table of Contents group; go to cruise reportOFR02-002 Home: return to OFR02-002 homepageINTRODUCTION: go to introductionSEISMIC DATA: Go to seismic data discussion
 Block Island Sound
 Eastern Long Island Sound East-Central Long Island Sound
 West-Central Long Island Sound
  Cruise Report
 Seismic Profiles
 Trackline Navigation
 Western Long Island Sound
 Fishers Island Sound and space Northeastern Long Island Sound  CORE DATA: Go to core data discussionPHOTO GALLERY: view photos of cruise activities and equipmentDATA CATALOG: Go to data catalog and browse available dataREFERENCES: view suggested referencesRELATED WEBSITES: go to a list of Long Island Sound related websitesACKNOWLEDGMENTS: view acknowledgmentsCONTACTS: view contact informationDISCLAIMER: view disclaimer informationREADME: view readme information




Alternate Leg or Cruise Number: 84-1
Platform: UCONN
Submersible (if any):
Owner-Operator: University of Connecticut
Captain: Larry Burch, University of Connecticut
Center Principal and Affiliate Principal:
(if any)
Stephen Colman
Ralph S. Lewis - CT Geological and Natural History Survey
Area of Operations: Western Long Island Sound
Bounding Coordinates:
North: 41.25
South: 40.85
West: -73.3
East: -72.80
Start and End Dates: MAY 16, 1984 to MAY 25, 1984
Start and End Ports: from New Haven, CT to New Haven, CT
Number of Days at Sea: 9
Cruise 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
  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.
Scientific Party (USGS): Stephen Colman - geologist; (May16-17)
Gerald Edwards - geologist; (May21-25)
David Nichols - Electronics Tech. (May16-25)
David Mason - Mechanical Tech. (May16-25)
Scientific Party (affiliate): Ralph S. Lewis - CGNHS, Chief Scientist; (May16-25)
Bob Altamura - CGNHS, geologist; (May18)
Margaret Thomas - CGNHS, geologist; (May19)
Scientific Equipment:
  • EG&G model 234 energy source
  • 300J power supply
  • EG&G model 26A sound source-boomer plate and sled
  • EG&G hydrophone with pre/amp in streamer
  • Innerspace hydrophone without pre/amp in streamer
  • Innerspace model 202 pre-amplifier/filter
  • Teledyne model 300 high resolution amplifier
  • EPC 4100 and 4603 programmable graphic recorders
  • HP 8-track tape recorder
  • IRIG B time code clock
  • LORAN C with TI silent 700 hardcopy printer
  • EDO Western sidescan sonar system;   
Navigation techniques used: Loran-C
Cruise Funding Source:
Project Title: New England Coastal Geology
Remarks: Calm seas and few emergency course alterations allowed for consistent, well documented high-resolution 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.
Tabulated Information:
Days at Sea: 9
Continuous Data (in Km): 634
Number of Stations Occupied:
Number of Submersible Dives:
Station Descriptions:
Track Plot:
Related Web Sites: Long Island Sound Studies

Long Island Sound Interactive Mapping

Submitted by: Sally Wood Needell

Connecticut Department of Environmental Protection

Department of the Interior > U.S. Geological Survey > Coastal and Marine Geology Program > Long Island Sound Studies
Contact: L.J. Poppe (")