| EVIDENCE FOR ABRUPT CLIMATIC CHANGES ON NORTHWESTERN MARGIN OF EAST ASIAN MONSOON REGION DURING LAST DEGLACIATION |
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| 作者姓名： | QIANG Ming-rui~ LI Sen~ GAO Shang-yu~ |
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| 作者单位： | 1. China Center of Desert Research，Beijing Normal University/Key Laboratory of Environmental Changes and Natural Disaster，the Ministry of Education of China，Beijing Normal University，Beijing 100875，P. R. China; 2. Department of Tourism，Resources and Environment，Foshan University，Foshan 528000，P. R. China |
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| 基金项目： | Under the auspices of the National Natural Science Foundation of China (No. 40271114, 40301051) |
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| 摘 要： | Based on investigations of the Zhongwei Nanshan aeolian section situated in the southeastern margin of Tengger Desert, carbon-14 and TL (thermoluminescence) dating results and paleoclimatie proxies such as magnetic susceptibility and grain size, we inferred that the northwestern margin of East Asian monsoon region experienced abrupt climatic changes during the last deglaciation. Six oscillation events were identified: Oldest Dryas, Bφlling, Older Dryas, Allerφd, Intra-Allerφd Cold Period (IACP) and Younger Dryas (YD). The summer monsoon was weaker during Oldest Dryas and Younger Dryas when the winter monsoon was stronger. However, during the B/A (Bφlling/Allerφd) period, the summer monsoon strengthened, reflected by magnetic susceptibility, when the winter monsoon also became strong, which is different from the paleoclimatic pattern established in the East Asian monsoon region. Furthermore, the summer monsoon was nearly in phase with the climate changes inferred from the oxygen isotopic records of
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EVIDENCE FOR ABRUPT CLIMATIC CHANGES ON NORTHWESTERN MARGIN OF EAST ASIAN MONSOON REGION DURING LAST DEGLACIATION |
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| QIANG Ming-rui,LI Sen,GAO Shang-yu.EVIDENCE FOR ABRUPT CLIMATIC CHANGES ON NORTHWESTERN MARGIN OF EAST ASIAN MONSOON REGION DURING LAST DEGLACIATION[J].Chinese Geographical Science,2004,14(2). |
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| Authors: | QIANG Ming-rui LI Sen GAO Shang-yu |
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| Institution: | QIANG Ming-rui~1,LI Sen~2,GAO Shang-yu~1 |
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| Abstract: | |
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| Keywords: | last deglaciation East Asian monsoon abrupt climatic changes |
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