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Late Cretaceous terrestrial vegetation: a near-polar temperature curve

Late Cretaceous terrestrial vegetation: a near-polar temperature curve,10.1130/0091-7613(1988)016<0022:LCTVAN>2.3.CO;2,Geology,Judith Totman Parrish,R

Late Cretaceous terrestrial vegetation: a near-polar temperature curve   (Citations: 42)
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Quantitative estimates of terrestrial paleotemperatures near the North Pole were derived from the physiognomy of the vegetation, including leaf-margin analysis, from rocks of latest Albian and Late Cretaceous age of the North Slope of Alaska. During the latest Albian and Cenomanian, mean annual temperature was approximately 10 +/- 3°C. During the Coniacian, mean annual temperature may have been 2-3°C warmer than during the Albian-Cenomanian but no higher than 13°C. During the Campanian and Maastrichtian, mean annual temperature would have been about 2-8°C. Although the ranges for the individual estimates overlap, differences among the floras indicate that the relative changes in mean annual temperature did occur.
Journal: Geology , vol. 16, no. 1, 1988
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