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| THE TWO-DIMENSIONAL INVERSION TECHNIQUE FOR CONTROLLABLE SOURCE AUDIO FREQUENCY MAGNETOTELLURIC SOUNDING (CSAMT) DATA UNDER COMPLEX TOPOGRAPHY AND ITS EFFECTIVENESS |
| LEI Da1,2, MENG Xiao-hong1, WANG Shu-min1,2, LI RU-chuan1,2, FANG Hui1,2, ZHAO Fu-gang2 |
1. China University of Geosciences, Beijing 100083, China;
2. Exploration Geophysics Open Laboratory of Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China |
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Abstract Complex topography seriously affects the interpretation of CSAMT. Considering the influence of the topography, the authors analyzed in detail the geoelectric section model and made CSAMT two-dimensional inversion for the direct calculation data of the model. The result is basically consistent with the shape of the direct model. The electric section obtained can satisfactorily reflect the underground geological structure and accord with the geological data. All this proves the correctness and effectiveness of this technique.
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Received: 14 March 2004
Published: 24 August 2004
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