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Quantitatite Reconstruction of Late Cenozoic Paleoclimate and Paleoelevation of Lanzhou Basin in North East Tibetan Plateau
详细信息   
摘要

Based on the research about the quantitative relationship between surface soil and climatic parameter, many authors have established magnetic susceptibility-annual rainfall transfer function and redess-annual temperature transfer function. In this paper,the authors chose the representative Jiuzhoutai loess profile and Nanshan red-clay profile and calculated the paleo-rainfall and paleo-temperature of Lanzhou Basin during the past 8 Ma by using these transfer function.Combining the magnetic susceptibility-paleorainfall transfer function and redess-paleotemperature transfer function with plenty of paleobiological and geological evidence,the results of quantitative reconstruction of paleoclimate and paleoelevation for the past 8 Ma in Lanzhou Basin indicate that the evolution of three paleo-parameters can be divided into four stages.

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