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Science 21 June 1963:
Vol. 140. no. 3573, pp. 1316 - 1317
DOI: 10.1126/science.140.3573.1316
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Articles

Cretaceous, Paleocene, and Pleistocene Sediments from the Indian Ocean

Yvonne Herman 1

1 Lamont Geological Observatory Columbia University, Palisades, New York

Two deep-sea cores containing Cretaceous, Paleocene, and Pleistocene sediments from an oceanic rise approximately 500 miles southeast of Cape Town contained well-preserved fossil foraminiferal ooze made up of about 97 percent planktonic forms, including species of Guembelina and Hedbergella. High percentages of particles less than 53 µ in diameter in the Cretaceous and Paleocene sediments indicate a deep-water open-ocean depositional environment. These sediments are the oldest recovered so far from the Indian Ocean.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)