Interpretation of shallow electrical resistivity images of faults: tectonophysical approach |
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| Affiliation: | 1. Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences, ul. Lermontova 128, Irkutsk, 664033, Russia;2. A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia;3. Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia;1. Univ. Grenoble Alpes, F-38000 Grenoble, France, CEA, LETI, MINATEC Campus, Grenoble, F-38054, France;2. STMicroelectronics, 850 Rue Jean Monnet, 38926 Crolles, France;1. INRA, Unité de Science du Sol, 2163 Avenue de la pomme de Pin, CS 40001 Ardon, 45075 Orleans Cedex 2, France;2. Université Pierre et Marie Curie-Paris 6, UMR 7619 Sisyphe, Case 105, 75252 Paris Cedex 05, France |
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| Abstract: | A new approach to interpretation of shallow electrical resistivity tomography (ERT) data discussed for the case of the Olkhon area (western Baikal region) stems from tectonophysical ideas of faulting phases and deformation levels in rocks. The deformation levels, identified statistically from ERT responses, constrain fault boundaries and subboundaries associated with the formation of main and subsidiary fault planes. Information of this kind creates a basis for solving various fundamental and applied problems of tectonics, mineral exploration, and engineering geology. |
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