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- Steven D'Hondt
- S. D'Hondt, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI 02882, USA.
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- Michael A. Arthur
- M. A. Arthur, Department of Geosciences and Earth System Science Center, Pennsylvania State University, University Park, PA 16802, USA.
書誌事項
- 公開日
- 1996-03-29
- DOI
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- 10.1126/science.271.5257.1838
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:p>Oxygen isotopic proxies of paleo-sea surface temperatures (SSTs) suggest that Maastrichtian (about 66 million years ago) tropical SSTs were lower than those of today. They also demonstrate that Maastrichtian latitudinal SST gradients were much lower than those of the present. The low Maastrichtian SST gradients indicate that meridional heat transport was much greater or latitudinal differences in the balance of radiation to and from the sea surface were much less extreme during the latest Cretaceous than they are today, or that both conditions were true. These findings challenge traditional interpretations of “greenhouse” Late Cretaceous climates.</jats:p>
収録刊行物
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- Science
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Science 271 (5257), 1838-1841, 1996-03-29
American Association for the Advancement of Science (AAAS)