The application of tipper to geophysical fault interpretation
Yu TIAN1,2, Xiang-Yun HU3, Biao YUE4
1. Guizhou Geological Survey, Guiyang 550018, China 2. Guizhou Engineering Research Center for Geological-geophysical Development and Application, Guiyang 550018,China 3. Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430000,China 4. Zhengye Engineering & Investment Incorporation limited , Guiyang 550081,China
As one of the measured parameters of the magnetotelluric sounding method, the tipper mainly represents the linear relationship between the vertical magnetic field and the horizontal magnetic field. In this paper, based on the forward modeling of magnetotelluric sounding, the authors derived the formula for calculating the two-dimensional tipper according to the definition of the dump, with emphasis placed on the forward modeling of two-dimensional fault structure model. Compared with the apparent resistivity, it is proved that tipper can more accurately reflect the lateral heterogeneity of dielectric properties. Tipper was successfully applied to the analysis and identification of the fault structure of the measured MT profile.
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