重磁电方法探测内蒙古苏尼特左旗填图区隐伏地质结构

摘要：地球物理方法不仅在发现和勘探隐伏矿体和能源方面发挥着重要作用，而且在区域地质填图中探测隐伏地质结构方面也大有作为，是地质和遥感填图的重要补充。本文阐述了采用重磁电资料研究内蒙古苏尼特左旗６幅１：５万填图区探测隐伏地质结构的工作：（１）推断了隐伏断裂构造；（２）推断了隐伏区岩性；（３）反演了一些局部地质体的几何参数与物性参数，以及前中生代地层顶界面和侏罗纪、白垩纪大型花岗岩体下界面的深度；（４）论述了苏尼特左旗复背斜构造；（５）指出了新的成煤有利地段。

SURVEYING CONCEALED GEOLOGICAL STRUCTURES OF SONID ZUOQI MAPPING REGION BY GRAVITATIONAL,MAGNETIC AND ELECTRICAL METHODS

eophysical prospecting method plays an important role not only in finding and prospecting concealed mineral resources, but also in surveying concealed structures in geological mapping. The author states the work of surveying concealed structures in Sonid Zuoqi 1: 50000geological mapping region of inner Mongolia with gravitational, magnetic and electrical prospecting methods. This work includes: (1 )inferring concealed fault structurest (2)inferring concealed strate and irruptive rocks; (3) inversing the geometric shapes and magnetic parameters of local geological bodies; (4)inversing the upper boundary depths of Pre-Mesozoic strata and irruptive rocks and the lower boundary depths Mesozoic granites ; (5)expounding the features of Sonid Zuoqi composite anticline ; (6)enclosing the new prospect regions of coalforming.