Campanian Climatic Change: Isotopic Evidence from Far East, North America, North Atlantic and Western Europe |
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作者姓名: | Yuri D. Zakharov Yasunari Shiget Kazushige Tanabe Yasuhiro I Olga P. Smyshlyaev Ekaterina A. Sokolov Alexer M. Popov Tatiana A. Velivetskay Tamara B. Afanasyeva |
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作者单位: | Far Eastern Geological Institute, FEB RAS, Stoletiya Prospect 159, Vladivostok 690022, Russia;Department of Geology, National Science Museum, 3-23-1 Hyakunincho, Shinjuku-ku, Tokyo 169-0073, Japan;University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;Far Eastern Geological Institute, FEB RAS, Stoletiya Prospect 159, Vladivostok 690022, Russia;Institute of Oceanology, RAS, Nakhimovskij Prospect 36, Moscow 117997, Russia;Far Eastern Geological Institute, FEB RAS, Stoletiya Prospect 159, Vladivostok 690022, Russia;Far Eastern Geological Institute, FEB RAS, Stoletiya Prospect 159, Vladivostok 690022, Russia;Far Eastern Geological Institute, FEB RAS, Stoletiya Prospect 159, Vladivostok 690022, Russia |
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基金项目: | This research was supported in part by a Grant-in-Aid for the International Field Expedition Programme of Japan (grant no. 10041109) and grant DVO (Russia) (no. 07-III-B-08-080). This work is in part supported by the National Key Basic Research Program, the Ministry of Science and Technology of China (MOST 973 Program, 2006CB701400),? and is a contribution to IGCP 463/555. |
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摘 要: | Paleoclimatic settings have been reconstructed for the Campanian using original oxygen-isotopic analyses of well-preserved molluskan and foraminifera shells from Russian Far East, Hokkaido, USA, Belgium and some DSDP holes (95, 98, 102, 390A, and 392A) in North Atlantic. Early Early Campanian climatic optimum has been recognized from data on high bottom shelf water paleotemperatures in middle latitudes of both the western circum-Pacific (to 24.2°C) and the eastern circum-Pacific (to 26.4°C) areas and high bottom shallow water paleotemperatures in high latitudes of the Koryak Upland (22.4–25.5°C), which agrees with the data on the Campanian Barykovskaya flora in high latitudes (Golovneva and Herman, 1998) and Jonker flora and its equivalents in middle latitudes. Judging from the data on comparatively high bottom shallow water paleotemperature values in high latitudes, South Alaska (19.4°C) and the Koryak Upland (22.4–25.5°C), we also expect Latest Campanian temperature maximum, which has not been confirmed, however, for low and middle latitudes by neither of isotopic nor paleobotanic data now. Main climatic tendency during the Campanian (with the exception of Latest Campanian) has been learned from isotopic composition of Campanian aragonitic ammonoid shells from the Hokkaido-South Sakhalin (Krilyon) marine basin. In contrary to Huber’s et al. (2002) assumption, we expect warm greenhouse conditions during the most part of the Campanian.
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关 键 词: | isotopic data cephalopod bivalve and gastropod mollusks paleotemperatures Campanian Sakhalin Hokkaido Koryak Upland North America Netherlands Atlantic |
收稿时间: | 2007/8/25 0:00:00 |
修稿时间: | 2007/9/25 0:00:00 |
Campanian Climatic Change: Isotopic Evidence from Far East, North America, North Atlantic and Western Europe |
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Authors: | Yuri DZAKHAROV Yasunari SHIGETA Kazushige TANABE Yasuhiro IBA Olga P SMYSHLYAEVA Ekaterina A SOKOLOVA Alexander M POPOV Tatiana A VELIVETSKAYA Tamara B AFANASYEVA |
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Abstract: | Paleoclimatic settings have been reconstructed for the Campanian using original oxygenisotopic analyses of well-preserved molluskan and foraminifera shells from Russian Far East,Hokkaido, USA, Belgium and some DSDP holes (95, 98, 102, 390A, and 392A) in North Atlantic. Early Early Campanian climatic optimum has been recognized from data on high bottom shelf water paleotemperatures in middle latitudes of both the western circum-Pacific (to 24.2℃) and the eastern circum-Pacific (to 26.4℃) areas and high bottom shallow water paleotemperatures in high latitudes of the Koryak Upland (22.4-25.5℃), which agrees with the data on the Campanian Barykovskaya flora in high latitudes (Golovneva and Herman, 1998) and Jonker flora and its equivalents in middle latitudes. Judging from the data on comparatively high bottom shallow water paleotemperature values in high latitudes, South Alaska (19.4℃) and the Koryak Upland (22.4-25.5℃), we also expect Latest Campanian temperature maximum, which has not been confirmed, however, for low and middle latitudes by neither of isotopic nor paleobotanic data now. Main climatic tendency during the Campanian (with the exception of Latest Campanian) has been learned from isotopic composition of Campanian aragonitic ammonoid shells from the Hokkaido-South Sakhalin (Krilyon) marine basin.In contrary to Huber's et al. (2002) assumption, we expect warm greenhouse conditions during the most part of the Campanian. |
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Keywords: | isotopic data cephalopod bivalve gastropod mollusks paleotemperatures Campanian Sakhalin Hokkaido Koryak Upland North America Netherlands Atlantic |
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