甘肃及邻近地区的各向异性介质MT反演及该区地壳深部应力场和形变带  

MT INVERSION MADE FOR ANISOTROPIC MEDIUM IN GANSU AND ITS NEIGHBOURING AREAS AND DEEP-CRUSTAL STRESS FIELD AND DEFORMATION BELT IN THE SAME AREAS

作　　者：杨长福[1] 林长佑[1] 

机构地区：[1]国家地震局兰州地震研究所,兰州730000

出　　处：《内陆地震》1997年第2期143-147,共5页Inland Earthquake

摘　　要：分析了某些条件下地球介质的电导率各向异性行为，并应用一维层找对称各向异性介质大地电磁资料的反演方法，对甘肃及其邻近地区实测MT资料的各向异性模型进行反演解释，由此确定地壳深部应力场和形变带的方向。Anisotropy of electric conductivity of the earth'S medium in some conditions is analysed-Anisotropic modle built on MT data that were really observed in Gansu and neighbouring ar-eas is reserved and explained,and by doing so,the directions of deep-crustal stress field anddeformatLon belt are determined.

关 键 词：各向异性 应力场 形变方向 地壳应力 

分 类 号：P553[天文地球—构造地质学]