FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Aeromagnetic, imaging, modeling, potent, residual, Nsukka, Udi
Aeromagnetic data analysis and interpretation of Udi sheet and that of Nsukka sheet in Enugu State, Anambra Basin was carried out. The data which were obtained by Nigeria Geological Survey Agency (NGSA) were interpreted qualitatively and quantitatively.Source Parameter Imaging and Forward and Inverse Modeling methods were employed to interpret the data quantitatively to obtain the intrusive bodies and their respective depth to basement. The depths to the magnetic bodies’ estimated using Source Parameter Imaging (SPI) method after some data processing like first order derivative ranges from 0.4723 km – 6.0518 km, In the forward and inverse modeling techniques seven profiles were taken on the residual map and were modeled, thus revealing some special features of the study area. These results show six intrusive bodies: pyrryhotite, ironstone, sandstone in some parts of Nsukka area and granite, gabbro or basalt, sandstone and olivine in some parts of Udi area with their respective depths and susceptibilities. The depths of the minerals obtained ranges from 0.835 km to 5.321 km.
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