Modelling fault networks in the Shizidun tungsten deposit in Yangtze Block, South China Craton

This study integrates field observations, structural analysis, and drillhole data to model the complex fault networks within Shizidun tungsten deposit in the central-northern Yangtze Block of South China Craton by using ArcGIS and Leapfrog software. Surface mapping revealed small-scale faults with diverse orientations, including ENE-, NW-, and N-S-trending faults, while subsurface modeling using drillhole data identified a network of steeply dipping faults intersecting within a Neoproterozoic granitic pluton which was intruded by Mesozoic granites. The results highlight a structurally complex sub-surface environment, likely influenced by regional E-W strike-slip tectonics, which controls tungsten mineralization and poses potential geohazard risks. These findings enhance our understanding of the deposit’s geological framework, providing insights for targeted mineral exploration and geohazard mitigation in the region.