Depth Estimation of Sedimentary Sections and Basement Rocks in the Bornu Basin, Northeast Nigeria Using High-Resolution Airborne Magnetic Data

This study involves the use of high-resolution airborne magnetic data to evaluate thicknesses sedimentary series in Bornu Basin, Northeast Nigeria, using three depth approximation techniques (source parameter imaging, standard Euler deconvolution, and 2D GM-SYS forward modelling methods). Three evenly spaced profiles were drawn N-S direction on total intensity map perpendicular regional structures. These used generate 2-D models. The signatures visually assessed determine thickness depo-centres position intrusions. based source imaging results are approximately ranged 286 615 m, 695 1038 1145 5885 m for thin, intermediate, thick sedimentation, respectively. Similarly, deconvolution result shows thin (130 917 m), intermediate (1044 1572 (1725 5974 m) sedimentation. model Profile 1, characterized by two major breaks, that igneous intrusions basement rocks covered sediments with varying from 300 <3500 while 2 has a maximum estimated value about 5000 at southern part. Furthermore, 3 sediment 2500 4500 northern flanks profile, various estimation methods this correlate relatively well each other. anomalous zone revealed models coincides locality sedimentation Euler-deconvolution (St-ED) methods. values obtained correlated strongly widespread occurrence short-wavelength anomalies part area as indicated jagged nature signature was validated analytic signal upward-continuation results. Generally, it observed research is