The Sekenke-Kirondatal area in Tanzania boasts a rich gold presence, as exemplified by the presence of artisanal mines. However, geophysical signatures related to gold mineralisation have not been well understood. This study integrates high-resolution magnetic, radiometric, gravity and VTEM datasets, along with field geological information, for the first time to investigate the subsurface structures related to gold mineralisation. The results reveal newly identified faults that were previously not identified trending in NW–SE, distributed across most parts of the area. Some of these faults indicate a continuation of previously recognised NW–SE faults, which were found to terminate due to sediment cover. The K/eU and K/eTh ratio images reveal alteration zones along the NW–SE mineralised structures. The low- conductive bodies associated with mineralisation correspond to intermediate and high-density gravity anomalies and rocks with high magnetic susceptibilities. Spectral depth analysis indicates that the depths to the magnetic sources are 159 m for deep-seated anomalies and 111.9 m for shallow-seated anomalies, while source parameter imaging in the mineralised area shows depths ranging from 100 to 185 m. The integrated structural density map, combined with existing artisanal mining pits and geological information, indicates a new potential prospect in the northeastern part of the area yet to be unveiled, which could benefit artisanal miners when fully explored. These findings are crucial for assisting stakeholders and policymakers to further explore gold mineralisation in known and newly identified prospect areas, prompting sustainable development in the mining sector through artisanal mining.
