AERO-GEOPHYSICAL ANALYSIS OF STRUCTURES IN NORTHWESTERN NIGERIA
OHIOMA J. O.1 AND OZOBEME A. A.
ABSTRACT
The importance of the exploration of the inland basins in Nigeria cannot be over emphasised. If they are found and used, hydrocarbons will expand the nation’s supply and increase output. All of these will benefit the nation strategically and economically. The Iullemmeden basin is a sizable synclinal basin, of which the Sokoto Sedimentary Basin is the southeast portion. The total magnetic intensity and residual maps were created using the data obtained from the digitization of twenty-nine aeromagnetic maps of the Basin using the visual interpolation method. The residual magnetic map was subjected to an upward continuation filter at 2 km, 3 km, 5 km, 7 km, 10 km, and 15 km. The results obtained from the analysis of the total magnetic intensity map (TMI), regional map, residual map, and upward continuation maps showed that the Sokoto basin is shallower in the south and thicker in the north, which borders the Niger Republic.