In this study, we performed some filters to highlight geological structures and/or features which are found in the igneous rocks, between the latitudes 9 ° 45'N to 10 ° 45'N and longitudes 13 ° 15'E to 14 ° 30'E. The application of the first vertical derivative (FVD) and the horizontal gradient magnitude (HGM) on a total magnetic data over the study area has led to put in evidence: 1) geological features as geological boundaries, faults, dykes, folds on the FVD map; 2) abundant aeromagnetic lineaments probably fractures, dykes and contacts, ex-hibit a conjugate relationship suggesting a near NE and NW tectonic trends; 3) existence of a possible prominent near E-W compression, characterized by a possible dextral displacement of geological formations by the shear movements; 4) and the magnetic signature of the country rocks.
KeywordsMagnetic GradientReduction to the EquatorFirst Vertical DerivativeHorizontal Gradient MagnitudeLineamentTectonic Trend
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