Induced polarization and electrical resistivity to delineate the sulphide mineralization in a part of the Peddavura Schist Belt of Eastern Dharwar Craton

Induced polarization (IP) and electrical resistivity surveys were conducted in the northern region of the Peddavura Schist Belt, part of the Eastern Dharwar Craton, India, to evaluate the potential for sulphide mineralization within altered Banded Magnetite Quartzite (BMQ), metabasalt and metarhyolite. The primary lithological units include metabasalt, BMQ, granitic gneiss, quartz reefs, quartz veins, metarhyolite and dykes. These geological settings alter the physical properties and structural configurations of the rock units, making them suitable targets for geophysical methods in mineral exploration. The findings suggest that copper and sulphide mineralization are associated with sheared lithologies, particularly quartz veins and zones of alteration. A total number of 11 NE–SW gradient array survey traverses, oriented perpendicular to the local geological strike, were laid down at approximately 100 m intervals with 10 m station spacing and a length of 1000 m. Three‐dimensional (3D) inversion of two‐dimensional (2D) parallel profiles was performed using a Python‐based Boundless Electrical Resistivity Tomography code. The analysis of 11 2D resistivity and IP profiles, along with 3D models, showed that potential mineralized zones have medium resistivity range (1000–5000 Ω m) and moderate‐to‐high IP values (phase) (>5 mrad). These zones are prominent near the surface and extend to depths of up to 100 m, although their signatures diminish at greater depths. Surrounding the moderate resistivity zones are areas of high resistivity, suggesting concentrated sulphide minerals along altered BMQ and weathered or fractured zones. The highly chargeable zones with moderate resistivity generally occur at shallow depths, up to approximately 100 m below the surface. The subsurface resistivity and IP data have effectively delineated potential copper–gold exploration zones, marked by extensive high‐chargeability regions and moderate resistivity anomalies.