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Deep Sea Drilling in the Antarctic: Focus on Late Miocene Glaciation and Applications of Smear-Slide Biostratigraphy

By
Sherwood W. Wise, Jr.
Sherwood W. Wise, Jr.
Antarctic Marine Geology Research Facility, Department of Geology
Florida State University, Tallahassee, Florida 32306 U.S.A.
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Published:
January 01, 1981

Abstract

Exploration of the Southern Ocean by Glomar Challenger began in the Pacific sector with a boldly executed set of holes along a cruise track extending into ice-laden waters adjacent to the Antarctic continent. These holes, along with additional sections drilled in subantarctic waters off New Zealand and Australia, established the basis for regional biostratigraphic zonations of the smaller-sized microfossil groups (coccoliths, diatoms, and siiicoflagellates). Because these microfossils could be examined readily in smear-slide preparations of raw sediments, a rapid age-dating technique evolved called smear-slide biostratigraphy. In addition, a preliminary history of Antarctic refrigeration leading to severe Late Tertiary continental glaciations was documented.

Exploration of the Atlantic sector, limited primarily by unfortunate weather conditions, provided additional evidence of severe Late Miocene glaciation and its role in shaping the circum-Antarctic current into a powerful geologic force. The successful drilling of critical reference sections on the Falkland Plateau also opened the area to efficient exploration by conventional piston cores sited using techniques of shipboard smear-slide biostratigraphy.

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Contents

SEPM Special Publication

The Deep Sea Drilling Project: A Decade of Progress

John E. Warme
John E. Warme
Colorado School of Mines, Golden Colorado.
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Robert G. Douglas
Robert G. Douglas
University of Southern California, Los Angeles California
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Edward L. Winterer
Edward L. Winterer
Scripps Institution of Oceanography, La Jolla California
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SEPM Society for Sedimentary Geology
Volume
32
ISBN electronic:
9781565761629
Publication date:
January 01, 1981

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