Canonical decomposition of magnetotelluric responses: Experiment on 1D anisotropic structures

摘要: Abstract Horizontal electrical heterogeneity of subsurface earth is mostly originated from structural complexity and anisotropy, local near-surface will severely distort regional electromagnetic responses. Conventional distortion analyses for magnetotelluric soundings are primarily physical decomposition methods with respect to isotropic models, which presume that the geoelectric distribution geological structures patterns represented by 3D/2D models. Due widespread anisotropy media, confusion between 1D anisotropic responses 2D responses, defects methods, we propose conduct modeling experiments canonical in terms layered method one mathematical based on eigenstate differentiated analyses, can be used recover information such as strike directions, maximum minimum conductivity. We tested this numerical simulation several synthetic turned out quite effective reveal information. Finally, background previous study seismological applied real data acquired North China Craton result shows that, cautious interpretation, could another good detect media.