Magnetotelluric analysis: Mohr circles

Abstract

Magnetotelluric is one of the phenomena to reflect electric properties of environments. Magnetotelluric analysis is one of the methods to research inhomogeneity of 2D and 3D electric environments, whose depths are from tens meters to hundreds kilometers. Explaining MT data is to get useful arbitrary parameters from a general MT impedance tensor. These processes are analysed by using different methods such as: Eggers’s method, La Torraca and Yee‘s method, conventional method and Mohr circles method. In these methods, the Mohr method processes general MT impedance tensor through two real and quadrature components, separately. We use the Mohr method to analyse 3D model data order to draw helpful geological information.