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U.S. geological survey core drilling on the Atlantic shelf

Science

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, , , , , , , , and

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Abstract

The first broad program of scientific shallow drilling on the U.S. Atlantic continental shelf has delineated rocks of Pleistocene to Late Cretaceous age, including phosphoritic Miocene strata, widespread Eocene carbonate deposits that serve as reflective seismic markers, and several regional unconformities. Two sites, off Maryland and New Jersey, showed light hydrocarbon gases having affinity to mature petroleum. Pore fluid studies showed that relatively fresh to brackish water occurs beneath much of the Atlantic continental shelf, whereas increases in salinity off Georgia and beneath the Florida-Hatteras slope suggest buried evaporitic strata. The sediment cores showed engineering properties that range from good foundation strength to a potential for severe loss of strength through interaction between sediments and manmade structures. Copyright ?? 1979 AAAS.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
U.S. geological survey core drilling on the Atlantic shelf
Series title:
Science
Volume
206
Issue:
4418
Year Published:
1979
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science
First page:
515
Last page:
527
Number of Pages:
13