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在世界许多地方,已同时进行了电磁(EM)法和地震反射剖面法的综合研究.遗憾的是,在其它更多地区,地震反射图象的解释没有受到电导率信息的约束.本文试图说服读者,儿乎在任何情况下,凡是进行了地震反射勘测的地方,都应布笠大地电磁(MT)测童.由六个实例说明,EM法的结果帮助了地震剖面的地质/构造解释. 本文还讨论了MT法的一些困难,并研究了下地壳内传导区的解释方法.最后,提出了一个大陆地壳的一般模型,丹它可计算下地壳顶部的反针率和电导率.
In many parts of the world, the electromagnetic (EM) and seismic reflection profile methods have been studied simultaneously.Unfortunately, in many other regions, the interpretation of seismic reflection images is not constrained by the conductivity information.This paper attempts to persuade Readers, Almost In all cases, MT measurements of children should be made in all areas where seismic reflection surveys have been conducted.6 The results from the EM method have helped to explain the geologic / tectonic interpretation of seismic profiles. This paper also discusses some of the difficulties of the MT method and studies the interpretation of the conduction region in the lower crust.Finally, a general model of the continental crust is proposed, which calculates the anti-needling rate and conductivity at the top of the lower crust.