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鄂尔多斯盆地西缘逆冲带是我国重要的陆内逆冲推覆构造带 ,其形成与发展 ,对了解我国西部与东部之间的构造转换 ,有着重要的意义 ,同时也是研究青藏高原向东扩展的有利地区。通过对该构造带几个问题的讨论 ,认为该构造带南段与北段的形成机理是不同的 ,鄂尔多斯盆地在当时有一定程度的逆时针旋转。南段主要是祁连山—北秦岭造山带向北东方向挤压的结果 ,贺兰山南部的北西向构造也属于该段 ,因此其形状为一向北东突出的弧形 ;而北段是由于旋转的盆地与发生构造挤出的阿拉善块体相互作用的结果。并对一些问题提出了一些看法
The western margin of the Ordos Basin is an important inland thrust nappe belt in China. The formation and development of the thrust belt in the western margin of Ordos Basin is of great significance for understanding the structural transformation between west and east of China. It is also of great significance in studying the eastward expansion of the Tibetan Plateau The favorable area. Through the discussion of several questions about the structural belt, it is considered that the formation mechanism of the southern and northern sections of the structural belt is different, and the Ordos Basin at that time had a certain degree of anticlockwise rotation. The southern segment is mainly the result of the Qilian-North Qinling orogenic belt squeezing north-eastward. The NW-trending southern Helan mountain also belongs to this segment, so its shape is a northerly northerly arc. The northern segment is due to the rotation of the basin With the occurrence of structural extrusion Alashan block interaction results. And made some comments on some issues