STRUCTURAL ANALYSIS OF TOTAL MAGNETIC INTENSITY MAP OF PARTS OF DEGEMA, RIVERS STATE, NIGERIA, USING OASIS MONTAG GEOPHYSICAL COMPUTER SOFTWARE

Abstract

The obtained aeromagnetic map by the Nigerian geological survey agency (NGSA) which covers part of Degema Rivers State were qualitatively analysed with the sole aim of identifying regions suitable for oil and gas (hydrocarbon) and mineral entrapment, highlighting lineament structures with their trend patterns and further deducing the effect of the findings as it connects to all and gas viability of the area by utilising qualitative analysis. Regional-residual separation was carried out on the aeromagnetic map, using polynomial fitting of degree two. Applying some data enhancement methods upon the residual map produces some gradient maps that show structures and aligning or trending in the NE-SW, E-W, N-S, NS-SE directions. These structures brought about features and faults that stimulated the movement and accumulation of oil and gas within the area. Qualitatively, this shows that the area has the promise for the explanation of oil and gas.