Contribution of advanced edge detection filters for the structural mapping of the Douala Sedimentary Basin along the Gulf of Guinea

The Douala sedimentary basin (DSB) is an area of interest because its hydrocarbon potential. Geophysical investigations in this are necessary to understand structural features better. In study, we aimed highlight the major lineaments DSB by interpreting gravity data using advanced edge detection filters based on various combinations horizontal and vertical gradients field, namely total gradient (THG), analytical signal (AS), theta map (TM), amplitude derivative (THG_VD), tilt angle (TAHG) a novel detector soft sign function (SF). These were first tested synthetic simple density model examine their effectiveness. results show that edges structures can be visualized with greater accuracy TAHG SF compared from others.
 Further, although produced good identifying shallow deep structures, solutions proved better at delineating edges. Next, applied these residual anomaly study obtained after filtering process complete Bouguer anomaly. filter clearly accurately identifies features. existence location previously unidentified have been shown. Most extracted provide geometric information lateral distribution depositional successions filling basin. mainly concentrically volcanic center Mount Cameroon has probably affected earthquakes permanent activities line since Cretaceous. highlighted may shed light future studies improve mineral/hydrocarbon exploitation update area's geological/tectonic information.