The record of paleoclimatic change from stalagmites and the determination of termination Ⅱ in the south of Guizhou Province,China |
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作者姓名: | ZHANG Meiliang YUAN Daoxian LIN Yushi CHENG Hai QIN Jiaming &ZHANG Huiling
Karst Dynamics Laboratory Institute of Karst Geology Chinese Academy of Geological Sciences Guilin China Geography |
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作者单位: | ZHANG Meiliang,YUAN Daoxian1,LIN Yushi,CHENG Hai,QIN Jiaming &ZHANG Huiling
Karst Dynamics Laboratory,Institute of Karst Geology,Chinese Academy of Geological Sciences,Guilin 541004,China;
Geography Department,Minnesota University,MN 55455,USA Correspondence should be addressed to Zhang Meiliang |
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摘 要: | A high-resolution climate record from 163.00 kaBP to 113.80 kaBP has been obtained through TIMS-U series dating and carbon and oxygen isotope analysis of the three large stalagmites from two caves in the south of Guizhou Province, China. The record of the oxygen isotopes from the stalagmites reveals that the undulation characteristics between the cooling event of the glacial period and the warming event of the interglacial period in the research area can compare well to those of ice cores, lake sediments, loess and deep sea sediments on the scale of ten-thousand years or millennium time scale. The climate undulation provided by the record of the stalagmites has a coherence with the global changes and a tele-connection to the paleoclimate changes in the north polar region. Our results suggest that the direct dynamics of paleo-monsoon circulation changes reflected in the record of the stalagmites might be caused by changes of the global ice volume, and in turn related to various factors, including the sol
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关 键 词: | stalagmite paleoclimatic change termination Ⅱ south of Guizhou. |
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