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根据祁连山北麓季风西北边缘区的河流阶地系列和风成黄土的研究,重建了该区中更新世以来的构造隆升和气候演化历史.研究发现,中更新世以来青藏高原的数次隆升事件与本研究区及其他地区的气候记录有一定的耦合性,发生于0.83和0.14Ma的构造事件,可以分别与0.64 Ma时沙漠的显著扩张及沙漠周期性进退的开始、末次冰期以来中国西北的极端干旱相对应.这些构造-气候耦合事件可能暗示了构造隆升对气候的驱动,从而反映青藏高原对东亚季风气候系统的重要影响
Based on the study of the fluvial terraces and aeolian loess in the northwestern margin of the monsoon in the northern Qilian Mountains, the tectonic uplift and climate evolution of the area since the middle Pleistocene have been reconstructed.The study found that several uplift events of the Qinghai-Tibet Plateau since the middle Pleistocene There is some coupling with climate records in the study area and other areas, which occurred at 0.83 and 0.14Ma structural events, which can be respectively associated with the significant expansion of the desert at 0.64 Ma and the beginning of the cyclical desert advance and retreat. Since the last glacial period, Extreme drought.These tectonic-climatic coupling events may imply that the uplift of the tectonic uplift affected the climate and thus reflected the significant impact of the Tibetan Plateau on the East Asian monsoon climate system