Pleistocene Paleotemperatures

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Science  15 May 1970:
Vol. 168, Issue 3933, pp. 822-825
DOI: 10.1126/science.168.3933.822


The generalized isotopic paleotemperature curve reproduces absolute temperatures to within 1°C; it closely reflects faunal changes; and its time scale is correct to within a very few percent back to at least 175,000 years. The average oxygen isotopic composition of the North American and European ice caps was about -9 per mil.

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