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本文概述了鄂尔多斯盆地的地球物理勘探史及勘探过程中对基底的不同认识。从地层新资料出发,重新解释了航磁异常与基底构造的关系。根据航磁资料和地震反射资料,讨论了基底的顶面起伏及其对盖层底部地层发育的控制作用。最后,讨论了对综合物探工作的几点体会,并对新一轮石油普查中的综合物探工作提出了建议。
This article provides an overview of the geophysical history of the Ordos Basin and different understandings of the substrate during exploration. Based on the new formation data, the relationship between aeromagnetic anomalies and the basement structure is reinterpreted. Based on the aeromagnetic data and seismic reflection data, the top surface fluctuation of basement and its control over the formation of the bottom of caprock are discussed. Finally, it discusses some experiences of integrated geophysical exploration and puts forward some suggestions for the comprehensive geophysical exploration in the new round of oil census.