Palaeotemperature curve for the Late Cretaceous of the northwestern circum-Pacific |
| |
| Authors: | Yuri D. Zakharov Nataliya G. Boriskina Alexander V. Ignatyev Kazushige Tanabe Yasunari Shigeta Alexander M. Popov Tamara B. Afanasyeva Haruyoshi Maeda |
| |
| Affiliation: | a Far Eastern Geological Institute, Far Eastern Branch, Russian Academy of Sciences, Stoletiya Prospect 159, Vladivostok, 690022, Russia;b Geological Institute, University of Tokyo, 7-3-1 Hongo, Bunryo-ku, Tokyo, 113-0033, Japan;c Department of Geology, National Science Museum, Tokyo, 3-23-1 Hyakunincho, Shinjuku-ku, Tokyo, 169-0073, Japan;d Department of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, Kitashirawa Oiwake-cho, Sakyo-ku, Kyoto, 606-822, Japan |
| |
| Abstract: | In the northwestern circum-Pacific, two main trends in Late Cretaceous temperatures can be recognized. (1) In general, a recurrent warming trend is thought to have begun in the Turonian–Campanian, reaching temperature maxima in the early Late Santonian and early Late Campanian, and temperature minima in the earliest Santonian and perhaps early Campanian. (2) During the Maastrichtian, temperatures dropped sharply, with only a slight warming in the early Late Maastrichtian. The existence of a thermal maximum at the Coniacian–Santonian transition has previously been expected, but is not confirmed by new isotopic results. |
| |
| Keywords: | K/T boundary oxygen and carbon isotopes palaeotemperatures palaeoproductivity molluscan diversity Hokkaido Sakhalin Koryak Upland |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
