Structural Interpretation of Northern Sokoto Basin, Using Airborne Magnetic Data
ISSN(Online): 2319-8753 ISSN (Print): 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology (A High Impact Factor, Monthly, Peer Reviewed Journal) Visit: www.ijirset.com Vol. 7, Issue 7, July 2018 Structural Interpretation of Northern Sokoto Basin, Using Airborne Magnetic Data Ibe Stephen O.1, Uche Iduma2 Senior Lecturer, Department of Physics, Federal University Otuoke, Bayelsa State, Nigeria1 Geophysicist, Nigerian Geological Survey Agency Abuja, Nigeria 2 ABSTRACT: Analysis of high resolution aeromagnetic data was carried out to evaluate the structural complexity of Sokoto Basin, Northern Nigeria. The total magnetic intensity data covering the basin were processed and filtered using First vertical derivative (FVD) and Horizontal gradient (HG) filters. The FVD and HG were computed to enhance faults, fractures and folds. Ten major fault systems were defined trending majorly in the NE-SW direction with minor NW-SE trends. The lineament of the area was extracted and plotted to define the major trends of both major and minor structures. The lineament map and corresponding rose plot show a dominate NE-SW trend with minor NW-SE, EW and NS structures within the study area. The structural complexity was computed using the lineament map. The lineament density map shows that the eastern part of Gwadebawa, Jiga Birne, Jega, Wamako, Sokoto, Raka, Gayawa, Manu, Giden Madi, Matona, Talata Mafara, Moriki, Gada, Dakko and Baban Baki are intensely deformed. Kuka, Birnin Kebbi, Kaingwa, Binji, Satuka, Tureta, Rabah, Isa, Sabon Birni and eastern part of Raka are moderately deformed; and Satuka, Arbkwe, Bui, Kuka, Botawa, Binji, Sabon Birni, southern part of Tureta and eastern part of Manu are less deformation.
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