Mineral Potential of Parts of Southwestern Nigeria from Magnetic and Radiometric Methods

The study area is part of Osun State in southwestern Nigeria and falls within the Ilesha schist belt. Airborne magnetic and radiometric data were utilized, provided by the Nigerian Geological Survey Agency (NGSA). The data were gridded and displayed, showing well-defined radiometric highs and magnetic belts. Geophysical mapping and structural analysis were conducted, leading to the identification of potential mineralization zones. The mineral potential map was developed, highlighting areas for further ground investigation. Overall, the study highlighted the presence of mineralized zones in the project area, with geophysical signatures such as high amplitudes of total gradient magnitude anomalies and anomalously high potassium-to-thorium ratios. Follow-up ground investigations using various methods are recommended to establish the mineralization in the study area.