摘要
介绍了应用可控源音频大地电磁测深法(CSAMT)解决地表有玄武岩覆盖的镜泊湖地区深部地热勘查的问题。利用该方法抗干扰及高分辨率的优势,消除了覆盖层影响,并在总结该地区地热成藏特点的基础上,根据CSAMT反演电性结果推断出地层及断裂构造的分布情况。根据异常设计了钻孔,钻探证实了该方法寻找深部地热的可行性。
This paper introduces the application of controlled source audio frequency magne- totelluric method （CSAMT） to explore the deep geotherm existing in the surface of the ba- salt covered Jingbo lake area. Taking advantage of the anti interference and high resolution characteristics of the method, the influence of basalt covered layer is eliminated. Based on the research result of geothermal characteristics in this area, the distribution of strata and faults from the CSAMT inversion result is inferred. According to the resistivity abnormali ty, the borehole is designed, and the drilling result proved that CSAMT method is feasible to prospect the deep geotherm.
出处
《工程地球物理学报》
2015年第4期450-454,共5页
Chinese Journal of Engineering Geophysics
基金
天津华北地质勘查局工程勘查项目(编号:HK2014-G-037)
