摘要
鄂尔多斯盆地,沉积岩厚逾五千米,面积达二十六万平方公里,为我国陆上第二大盆地。它位于我国东部和西部属性完全不同的两个大地构造单元的交接部位,具有独特的地质构造特点。其构造演化有着明显的阶段性,表现出频繁的升降运动。
Abstract
Ordos basin,located in the connected part of the western active belt and easternstable region of China,has gone through many episcdes of tectonic movements. The platform and geosyncline regimes of Ordos in earlier Paleozoic period were incorporated as a whole by Caledonian orogenic movement, and then uplifted and unified with North Chian platform in later Paleozoic. During Mesozoic, it gradually developed into an extensive intracontinental depression but uplifted again in Cenozoic with Hetao, Yinchuan, Lupanshan and Fenwei subbasins formed atound.
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