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Eolian sand deposition and its environmental significance in the northeaster margin of the Qinghai-Xizang Plateau

机译:青藏高原东北缘风沙沉积及其环境意义

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摘要

The dry climate which appeared about 8-7 Ma ago in South Asia has been interpret- ed as results of the intensification of Asian monsoon caused by the uplift of the Qing-Xizang Plateau at its maximum altitude around that time. Whether it is or not, it is a critical problem. A Total of 55 samples were taken from the Tertiary red earth and Quaternary lacustrine deposits And loess in the Lixia Basin which is located in the northeastern margin of the Qinghai-Xizang Plateau, for the analysis of quartz types and contents using electron probe microanalyzer.
机译:在南亚大约8-7 Ma以前出现的干旱气候,被解释为是由于青藏高原在那个时期的最大高度隆起引起的亚洲季风加剧。不管是不是,这都是一个关键问题。取自青藏高原东北缘利夏盆地第三纪红土和第四纪湖相沉积物和黄土共55份样品,用电子探针显微分析仪分析石英的种类和含量。

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