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Science 1 August 1980:
Vol. 209. no. 4456, pp. 557 - 562
DOI: 10.1126/science.209.4456.557
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Articles

Arctic Oceanic Climate in Late Cenozoic Time

Yvonne Herman 1 and David M. Hopkins 2

1 Adjunct associate professor at Washington State University, Pullman 99164
2 Senior geologist at the U.S. Geological Survey, Menlo Park, California 94025

Faunal and lithologic evidence is used to reconstruct paleoceanographic events over the last 4.5 million years. The inception of perennial sea-ice cover is dated at about 0.7 million years.


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