一.前言西方地理学者和地质学者与蒙古人—道,称黄河河套以南辽阔而平坦的地区为鄂尔多斯。这一地区在大地构造上的地台()性质,远在十九世纪末叶已为著名的苏联地质学者和探险家奥布鲁切夫所指出。从那时起在西方学者方面鄂尔多 I. Introduction Western geographers and geologists and Mongolians - Road, said the Yellow River sets south of the vast and flat area of ​​Ordos. The geotectonic nature of this area in the earth has been pointed out by the famous Soviet geologist and explorer Abruchov far in the late nineteenth century. Since then, Erdos has been a Western scholar