Impacts of Euler Deconvolution on Potential Field Gradients: Implications on Structural Evaluation of High Resolution Aeromagnetic Data of Ilorin (Sheet 223) North-Central Nigeria

This study presents a quantitative interpretation of high-resolution aeromagnetic data over Ilorin and its environs (sheet 223), North-Central Nigeria. The data, sourced from the Nigerian Geological Survey Agency (NGSA), processed using Geosoft Oasis ????????????????????????????????8.4v, and were analyzed to delineate subsurface structural features and lithological variations for geological mapping and mineral exploration. The computational techniques of field gradients in a clean pattern were highlighted alongside with the suggested new technique for rejecting invalid Euler solutions while the modified Euler deconvolution algorithm was equally demonstrated exemplifying it on synthetic models as well as on Ilorin and its environs. The analytical signal revealed a value range of 0.0002 to 3.4127 nT/m while the 3D Euler Deconvolution revealed depth values ranging from 95m to 292m; depth estimation and geometry of magnetic sources. The integration of quantitative outputs indicates that the area is structurally complex, with multiple fractures, faults and lithological boundaries concealed beneath the surface.