地质论评Issue(3)：645-650,6.DOI:10.16509/j.georeview.2015.03.017
音频大地电磁测深法揭示的北京西山霞云岭-长操逆冲断层地下构造特征及其意义
Audio-frequency Magnetotellurics to Reveal the Tectonic Characteristics of the Xiayunling-Changcao Thrust Fault in Western Hills of Beijing and Its Significance
摘要
Abstract
With the increase of hydrological geological survey in North carbonate area,deep earth physical methods are in urgent need to detect the thickness and structural characteristics of carbonate rocks buried depth in the study area.This paper successfully use the audio-frequency magnetotellurics to detected the deep electrical characteristics of the thrust fault in the Changcao survey area.Besides,this method can also be useful in dividing the carbonate formation.From the detection profile view of 2D inversion results,the Xiayunling—Changcao fault is divided into two branches on the surface,but they gather into one fault in the deep earth;besides,the high resistance region section is divided into three parts by Xiayunling — Changcao fault,and the low resistivity zone develop along the main fault.Finally,combined with the strata and lithology information in survey area,this passage deduces that the thrust fault occurred twice thrust nappe,Xiayunling — Changcao fault mainly in the Meso—Neoproterozoic strata,there is no other strata involved.关键词
音频大地电磁测深/电性特征/碳酸盐岩/逆冲断层Key words
audio-frequency magnetotellurics/electrical characteristics/carbonate rocks/thrust fault引用本文复制引用
韩凯,甘伏平,梁永平,郑智杰,刘伟..音频大地电磁测深法揭示的北京西山霞云岭-长操逆冲断层地下构造特征及其意义[J].地质论评,2015,(3):645-650,6.基金项目
本文为中国地质调查局“北方岩溶区水文地质环境地质调查示范”项目（编号1212011220940）和“岩溶塌陷地球物理勘探试验”项目编号1212011220193）的成果。 （）
