摘要
文中提出了一个一般介质的裂隙集中体积模型,由此导出了裂隙介质以及作为特例的EDA介质的各向异性电导率表达式。然后,从大地电磁测深法的角度,详细地推导了双层地层(含裂隙)结构的视电阻率正演公式。最后,利用所得结果进行了数值模拟。本文的结果有助于进一步开展电性各向异性及其与地震的联合解释的研究。
In this article, we propose a so-called crack- concentrated volume mode l and work out the representation of the electrical conductivity vector for crac k-complex medium as well as that for EDA-medium, a specific instance of the fo rm er. And, from the point view of MT methods, given is the formulas for forward pr oblem to EDA - included two strata structure. Finally, the authors show the MT image based on the derived results. This study aims to pave a foundation for fur ther study on the electrical anisotropy and the related combinatorial explanatio n.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2005年第2期65-67,共3页
Coal Geology & Exploration
基金
中国石油天然气集团公司物探重点实验室开放基金 (GPKL0 2 0 5 )
关键词
各向异性
集中体积模型
电导率张量
视电阻率
anisotropy
crack-concentration volume model
e lectrical conductivity vector
apparent resistivity.
