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鄂尔多斯盆地地跨陕、甘、宁、蒙四省(区),是一个被中新生界掩盖的大型沉积盆地。解放以来对该区进行了系统的地质和地球物理工作,使我们能够对被掩盖的盆地基底,也就是前震旦系的构造特征及发育史有一定的认识。原地质部航测队完成了本区(东经106°-112°,北纬34°-41°20′)的五十万分之一航空磁测,并在约一半的面积上进行了二十万分之一航空磁测,该队和原地质部第三物探大队曾对此作了系统的总结。但是随着石油勘探和研究工作的深入进行,发现对该
Ordos Basin across the Shaanxi, Gansu, Ningxia and Mongolia provinces (regions), is a large sedimentary basin covered by the Mesozoic and Cenozoic. Since the liberation, systematic geological and geophysical work has been carried out in this area, enabling us to have some understanding of the structural features and developmental history of the covered basins, that is, the former Sinian. The former Geological Department’s aerial survey team completed the aeromagnetic survey in the area (106 ° -112 ° longitude, 34 ° -41 ° 20 ’north latitude) and conducted about 200,000 points in about half the area One of the aviation magnetic measurements, the team and the former Department of Geology third geophysical brigade had made a systematic summary of this. However, with the further exploration of oil exploration and research work, it was found that this