Abdulsalam N. N., Mallam A. and Likkason O. K.
Total field aeromagnetic anomaly data obtained for the Koton-Karifi area, Nigeria were used for the present study. The original data were part of the aeromagnetic map of the total magnetic field intensity in half-degree sheet acquired from the Nigerian Geological survey Agency (NGSA). The superimposed ground – levelled aeromagnetic anomaly map on the geology of the area suggests a NE-SW fault line, marking a boundary between the migmatites and granitoids. It is therefore suggested that the metamorphic phase change at this boundary was a major tectonic event in the area.
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