| 中原末次冰期间冰阶以来的古季风气候变迁 |
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| 关键词:Mangshan loess at Central China last glacial stage paleomonsoon climate past global change |
| 基金项目:国家自然科学基金 |
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| 摘要: |
| The Paleoclimate Variations in the China Central Plains since the Interstade of the Last Glacial Stage |
| Loess strata at Mangshan in the China Central Plains are characterized by the Malan loess with a huge thickness. This paper discusses the summer and winter monsoon climate variations and their interrelations recorded by the loess_paleosol sequence in Central Plains since the last interstade. It is revealed that on the 10000 a scale the enhanced summer monsoon corresponded to the declined winter monsoon, and vice versa, but on the 1000 a scale the winter monsoon varied much more intensely than the summer monsoon and the weakening of winter monsoon evidently preceded the strengthening of summer monsoon at the beginning of the last interstade. By comparing the loess record from Central Plains with the oxygen isotope records from deep sea and ice core, it is proposed that the short_term climatic changes imply a great deal of regional character and should be made a comparison of global extent only by independent timescale. |
| XIAO Hua-guo,WU Xi-hao,JIANG Fu-chu,TIAN Guo-qiang,LIU Ke,XUE Bin,SUN Dong-huai.1998.The Paleoclimate Variations in the China Central Plains since the Interstade of the Last Glacial Stage[J].Acta Geoscientica Sinica,19(1):84-89. |
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