Interpretation of Aeromagnetic Data Over Parts of Bida Basin, North central Nigeria

Abstract

Interpretation of magnetic signatures over parts of central Bida basin, Nigeria was carried out to highlight linear structures and to suggest the viability of the basin for hydrocarbon potentials in the survey area. Aeromagnetic data over the study area bounded by latitude 8.50N to 10.00N and longitude 5.00E to 6.00E was interpreted with a view to study magnetic trends and to estimate the sedimentary thickness within the study area. Trends characteristic of magnetic lineament were analyse using first vertical derivative. Source parameter imaging was used to estimate the sedimentary thickness. The lineaments from first vertical derivative majorly in NE-SW direction. The Occurrence of linear subsurface structure may be due to discontinuities caused by faulting of country rock and this is in conformity with the history of formation of Bida basin. The result of source parameter imaging shows that depth to magnetic sources has its maximum sedimentary thickness of about 3.0 km in the sourth and central parts of the study area. The sedimentary thickness of of about 3.0 km might be sufficient for hydrocarbon maturation in the area