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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

AT-84-1 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 discussionCORE DATA: Go to core data discussion
 CERC cores
 1984 MMS cores
 Summary Report
  Cruise Report
 Core Descriptions
 Core Photographs
 Seismic Profiles
 Core Locations
 1988 MMS cores  PHOTO 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:


R/V Atlantic Twin

Submersible (if any):

Owner-Operator: Alpine Ocean Seismic Survey, Inc.
Center Principal and Affiliate Principal:
(if any)
Area of Operations: Long Island Sound, Block Island Sound, Narragansett Bay, Rhode Island Sound, Massachusetts Bay, New Hampshire Coast.
Bounding Coordinates:
North: 41.210831
South: 41.015831
West: -73.155838
East: -72.311668
Start and End Dates: 26 Sept. 84 - 19 Oct. 84


26 Sept. - 29 Sept. 
29 Sept. Engine failure - resume cruise Oct. 5, 1984
5 Oct. - Oct. 6 Long Island Sound
7 Oct. Block Island Sound
8 Oct. Narragansett Bay/Block Island Sound
9 Oct. Rhode Island Sound/Transit to Woods Hole, MA. (offload cores)
10 Oct. Transit to Portsmouth, New Hampshire
11 Oct. - 12 Oct. New Hampshire Coast
13 Oct. - 18 Oct. Massachusetts Bay
19 Oct. Transit to Woods Hole, MA (offload cores)

Start and End Ports:
Number of Days at Sea:
Cruise Objectives: To obtain vibracores at selected targets (46) in the coastal waters of Connecticut, Rhode Island, Massachusetts, and New Hampshire.
Scientific Party (USGS):
Scientific Party (affiliate): Ralph Lewis (Conn.) 26 Sept. - 12 Oct.
Nancy Friedrich (R.I.) 26 Sept. - 8 Oct.
Francis Birch (NH) 11 Oct. - 12 Oct.
Gerald Edwards (Mass/USGS) 10 Oct. - 19 Oct.
Scientific Equipment:
  • Seismic System: (Supplied by Alpine with funding from USGS)
  • Sparker: Innerspace Technology (Model 201) 20 joules
  • Recorder: Grifft (Model 4000T)
  • Hydrophone: Innerspace Technology (25 element)
  • Vibracorer: Alpine 30 foot system
Navigation techniques used: Core sites were located using LORAN- C positioning (a complete record of pertinent navigation data is on file with the cores at Woods Hole).
Funding Agency: Minerals Management Service (WS)
Funding Amount: $24,535 (Connecticut portion)
Contract Period: January 1, 1984 - September 28, 1985
Project Title:
Contract: MMS/Coastal States Co-op. (14-12-0001-30115)
Remarks: The states of Connecticut, Rhode Island, Massachusetts and New Hampshire pooled their resources to hire Alpine Ocean/Seismic Survey, Inc., to obtain vibracores at forty six sites of scientific interest. Each state contributed all or a portion of their FY 1983 MMS monies to the pool and each received a number of cores commensurate with their contribution (CT.- 14, Rl 6, MA- 14, NH - 12). The four states were fortunate enough to be able to work with the New England Governor's Conference, Inc., which acted as the contracting agent for this project.

Although equipment/weather problems caused some delays the scientific objectives of each participant were met (44 cores were obtained) and the project was a success. The pooling of individual state resources proved to be a very effective way to obtain a platform and product that the states singly could not have afforded. Each state determined its level of involvement, and the joint effort was a turn-key type contract that provided a mechanism for obtaining cores. Each of the participating states still has an individual responsibility to live up to its subagreement with MMS (in terms of deliverables, etc.). 

The cores are being curated through the good offices of the United States Geological Survey, Woods Hole, MA (USGS, Office of Marine Geology also provided funding to operate seismic reflection equipment during the cruise). For further information see attachments and/or contact Ralph Lewis, Long Island Sound resource Center, University of Connecticut, Avery Point, Groton, Ct. 06340 or at the Connecticut DEP, NRC, Street Level, 79 Elm Street, Hartford, CT 06106

Tabulated Information:
Days at Sea:
Continuous Data (in Km):
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 (")