Evaluation of Aeromagnetic Data Over Some Parts of Lower Benue Trough, Nigeria Using Spectral Analysis

We obtained, processed, and interpreted spectral analyses of aeromagnetic data across a portion the Lower Benue Trough with goal estimating depth to magnetic basement, modeling conspicuous anomaly, identifying basement topography, evaluating basin configurations. Qualitative interpretation based on visual examination total intensive anomalies map, residual contour first vertical derivative map reveals major faults trending east-west (E-W) minor northeast-southwest (NE-SW), which is consistent structure lower Trough. The western research region indicates structural change near towns Afikpo Ishiagu, indicating areas documented intrusive igneous body activity. According quantitative aeromagmatic data, average sedimentary thickness between (2.3 3.2 kilometers) Quantitative utilizing analysis identifies two distinct sources in region: shallower ranging from 1.09 1.6 kilometers southern area, deeper 1.61 4.90 northern section. Additionally, that depths centroid bodies (sedimentary thicknesses) vary 5.02 10.65 0.23 3.5 kilometers, respectively. It was recommended ground survey be used conjunction this work provide more conclusive result.