Details of the abstract
| Title of paper | Anisotropy estimation using 1D joint inversion of DC resistivity and CSRMT methods in the granite-gneiss terrains of Eastern Ghats, India |
| List of authors | Singh, A., Agrahari, S., Shlykov, A., Saraev, A., Yadav, A. |
| Affiliation(s) |
Indian Institute of Technology, Kharagpur, India Indian Institute of Technology, Kharagpur, India St. Petersburg State University, Russia St. Petersburg State University, Russia Indian Institute of Technology, Kharagpur, India |
| Summary | The joint inversion of a galvanic and an inductive method is a standard procedure for the estimation of resistivity anisotropy of the subsurface. Other advantages of the joint inversion include the enhancement in the resolution and the importances of the model parameters obtained after the joint inversion. The joint inversion of the DC resistivity method and far-field CSRMT method is utilized to evaluate the resistivity anisotropy in the fractured granite-gneissic terrains of Eastern Ghats, Odisha, India. A table depicting the importances justifies the accuracy of the joint inversion. The interpreted results validate the inferences made from a borehole lithology in the area. The anisotropy in the subsurface is found to increase with depth and is more pronounced near the fractured horizons. Also, the magnitude of the anisotropy varies up to 15. |
| Session Keyword | 6.0 Rock and Mineral Resistivity, and Anisotropy |
| File upload |
6.0_anisotropy_estimation_usi_singh.pdf
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