Interpretation of High-Resolution Aeromagnetic Data Over Nsukka and Udi Areas of Enugu State, Nigeria
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Date
2017
Authors
Ozebo, V.C.
Nwodo, M.U
Journal Title
Journal ISSN
Volume Title
Publisher
Federal University Wukkari
Abstract
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
Description
Keywords
Aeromagnetic, imaging, modelling, potent, residual, Nsukka, Udi
Citation
V.C. Ozebo and M.U. Nwodo (2017): Interpretation of High-Resolution Aeromagnetic Data Over Nsukka and Udi Areas of Enugu State, Nigeria, FUW Trends in Science and Technology Journal, 2 (1) 182 – 187