Details of the Abstract
| Title of paper | Exploring Subsurface Structures through MT Analysis in the Eastern Ghat Mobile Belt, India |
| List of authors | Agrahari, S., Yadav, A. |
| Affiliation(s) | Department of Geology and Geophysics, Indian Institute of Technology Kharagpur |
| Summary | Shear zones are one of the prominent features that exist in the EGMB region. These shear zones help us to understand the geological complexity and structural dynamics of the Earth's subsurface. This study aims to trace shear zones in the EGMB region to better understand the subsurface characteristics. A Magnetotellurics (MT) survey, which maps subsurface structures by monitoring fluctuations in the Earth's natural electromagnetic fields, was employed. A ~127 km profile, oriented roughly north-south, was traced on the southern side of the EGMB region, where numerous narrow shear zones exist. MT data were collected at selected locations along this profile and processed to enhance the signal-to-noise ratio. A 2D inversion was then performed to visualize the subsurface resistivity distribution. The resulting 2D resistivity model revealed a resistive zone at shallower levels, while the corresponding shear zones appeared as conductive anomalies at deeper depths. |
| Session Keyword | 3.0 EM methods for exploration (geothermal, mineral resources, etc.) |
| File upload |
3.0_exploring_subsurface_stru_agrahari_01.pdf
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