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Summary Information for Field Activity 1976-029-FA

Area of Operations: proposed Browns Ledge dredge spoil dump site, Eastern Rhode Island Sound, Rhode Island, Vineyard Sound, Elizabeth Islands, Martha's Vineyard, Massachusetts, United States, North America, North Atlantic

Dates: August 02, 1976 to August 06, 1976

Chief scientist: Chuck O'Hara

Objectives: As part of the proposed Federal Harbor improvement and maintenance dredging of Fall River and Mt. Hope Bay, a dump site for the dredge spoils is proposed for an area 2 miles southeast of Browns Ledge in Eastern Rhode Island Sound. This site is also being considered as a regional disposal ground for state and private organizations performing dredging for the Corps. The USGS in cooperation with the New England Division of the U.S. Army Corps of Engineers will conduct a sidescan sonar survey as part of a continuing program to determine the suitability and potential environmental impact of ocean dumping of dredge spoil material at the site. Available ship time will also permit acquisition of sonograph data of the sea floor beneath Vineyard Sound to study a massive beach and shoal complex underlying most of the sound and to identify possible sites for bottom grab sampling and coring.

Type of Activity: Sea floor mapping; Sea floor mapping

Information to be derived: Sea floor map;

Summary: Eastern Rhode Island Sound sidescan sonar: 104 km; Vineyard Sound sidescan sonar: 120 km.

Contact: Chuck O'Hara ()

InfoBank: uses the identifier V-1-76-MA. Visit this site for more information.

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Publications resulting from these data

O'Hara, Charles J., and Oldale, Robert N.,1980, Maps showing geology and shallow structure of eastern Rhode Island Sound and Vineyard Sound, Massachusetts: U.S. Geological Survey Miscellaneous Field Studies Map MF-1186, 5 sheets, 41 p.. (Available as a PDF version). (Also available at http://pubs.usgs.gov/mf/1980/mf-1186/)

O'Hara, Charles J.,1980, Side-scan sonograph data from eastern Rhode Island Sound and Vineyard Sound, Massachusetts: U.S. Geological Survey Open-File Report 80-283, 3 p.. (Available as a PDF version)


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