Arctic Oceanic Climate in Late Cenozoic Time

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Science  01 Aug 1980:
Vol. 209, Issue 4456, pp. 557-562
DOI: 10.1126/science.209.4456.557


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.