从物探资料看鄂尔多斯盆地基底构造特征

CHARACTERISTICS OF THE BASEMENT STRUETURE OF THE ERDUOSI BASIN

中国科学院地质研究所

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。

In this paper, the case history of geophysical exploration of Erduo-si Basin and the different understanding appeared in the course of exploration about the nature of the basement were summed up in brief. On the basis of the new information of strata, the relation between the. aeromagnetic anomaly and the basement structure were interpreted once again. In line with the aeromagnetic and seismic data, the relief of the top surface of the basement and its role of controlling the development of the bottom-set bed of the covering strata were examined. At the end of this paper, the author gave a recount to what he had learned from the integrated geophysical work and made some suggestions about the integrated geophysical work in the coming reconnaissance for petroleum.