Identification of structurally controlled potential mineralization zones in Chhotanagpur Gneissic Complex, Eastern India from gravity and magnetic data

• Integrated gravity and magnetic surveys delineates structural features in CGC. • Seven prospective blocks for potential mineralization. • Study of CGC's tectonic evolution and its influence on mineralization. The present study delineates zones of potential mineralization within the Chhotanagpur Gneissic Complex (CGC) using integrated geophysical methods. Comprehensive gravity and magnetic surveys were conducted across ∼3500 km², revealing seven high–priority blocks characterized by distinct Bouguer gravity anomalies (–46 to –19 mGal) and magnetic intensity variations (–246 to +710 nT). These geophysical anomalies are linked to surface lithologies like mica–schist belts, amphibolites, and intrusive bodies which are indicative of economically significant mineral deposits. In this study, structural analysis highlights NE–SW and NW–SE trending lineaments and faults that may play a key control on mineralization in the area. Depth estimations from radially averaged power spectrum (RAPS) and Euler 3D solutions shows causative bodies are deeper (∼4 km) in western region than the eastern region (∼1–2 km). The integration of geophysical data with geological interpretations enhances understanding of the CGC in the context of possible influence on mineralization processes. The present findings provide a strategic pathway for guiding further mineral exploration initiatives in seven potential zones identified in the study area.