物探与化探2016，Vol.40Issue(4)：798-803,6.DOI:10.11720/wtyht.2016.4.25
三分量定源瞬变电磁解释技术及其在金属矿区的实验
Three-component interpretation technique of fixed source TEM and its experimental application in metallic ore district
摘要
Abstract
The TEM instruments have provided a hardware foundation for three⁃component TEM interpretation;nevertheless, the prac⁃tical interpretation technology is still confined to the vertical component or simple approximation techniques. To make full use of the three⁃component data and improve the resolution of the fixed source TEM, this paper put forwards the three component full domain ap⁃parent resistivity definition and one⁃dimensional three⁃component joint inversion method. For the full domain apparent resistivity defini⁃tion, the authors use the iterative method to calculate the inverse function value instead of directly calculating the inverse function. The authors introduce the three⁃component weights of TEM data to build the joint objective function, and use the feasible region method to implement three⁃component joint inversion. Finally, the three⁃component interpretation algorithm is applied to the model calculation and the actual exploration data of the metallic mine to verify its effectiveness. Model test and actual data processing results show that the three⁃component interpretation method can use more TEM data and obtain processing results with higher resolution, thus achieving a fast calculation speed.关键词
定源瞬变电磁/全域视电阻率/三分量联合反演/金属矿Key words
fixed TEM/full domain apparent resistivity/three-component joint inversion/metallic mine分类
天文与地球科学引用本文复制引用
智庆全,武军杰,王兴春,陈晓东,杨毅,张杰,邓晓红..三分量定源瞬变电磁解释技术及其在金属矿区的实验[J].物探与化探,2016,40(4):798-803,6.基金项目
中国地质科学院地球物理地球化学勘查研究所基本科研业务费专项（ AS2015J09）；国家重大科学仪器设备开发专项（2011YQ05006004）；中国地质调查局老矿山深部和外围找矿专项 （）
