• 责任者：Hu Xiangyun (Institute of Geophysics and Geomatics ; China University of Geosciences ; Wuhan 430074 ; China) ; Huo Guangpu
• 刊名：Chinese Journal of Geophysics
• 出版年：2013
• 卷期：56(12)
• 关键词：大地电磁法 ; magnetotelluric methods
• 页码：p.4268-4277
• 图表：10 illus., 19 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

     After more than half century development, remarkable achievements have been made on the study of earthrs interior electrical structure by using the magnetotellurie method at home and abroad. The majority of these research results are based on the electrical isotropie theory. However, the electrical anisotropy phenomenon is prevalent in the earth interior, and the presence of electrical anisotropy in the crust and upper mantle is an important link factor among geoeleetric model, underground structure and tectonic model. In this paper, the tensor conductivity has been first introduced by starting from the Maxwell equations, then getting a setof partial differential dimension electrical equations with respect anisotropic structure. to E. and H. according  By using the partial to the characteristic of two- differential equations, the appropriate solution of E. and H~ has been solved, and working out other field components on the basis of E. and H.. Then, in order to recognize the characteristics of electromagnetic propagation under common and certain geological conditions, the influence on the measured magnetotelluric has been researched by the forward simulation on ordinary and special two-dimension anisotropic electrical structure, which has laid theoretical foundation for the subsequent processing and interpretation of magnetotelluric measured data. Finally, the electrical anisotropy theory is introduced in the processirlg and interpretation of magnetotelluric measured data based on the research results in the paper, and the widespread existence of electrical anisotropy phenomenon has been stated and exactness of this theory and practicability of algorithm have been verified by means of the two-dimension forward fitting interpretation on the magnetotelluric data in someplace in Xinjiang, which can provide theoretical basis and technical guidance for analyzing and explaining the electrical anisotropy phenomenon in the magnetotelluric data, and most importantly, it opens up the idea and solution in the processing of magnetotelluric measured data.