Structural Interpretations Inferred from a High Resolution Aeromagnetic (HRAM) Data over Parts of Onshore Niger Delta, Nigeria
International Journal of High Energy Physics
Volume 4, Issue 3, June 2017, Pages: 23-31
Received: Jun. 3, 2017; Accepted: Jun. 29, 2017; Published: Aug. 15, 2017
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Bello Rasaq, Department of Physics, University of Port Harcourt, Choba, Nigeria
Ofoha Chimezie Charles, Department of Physics, University of Port Harcourt, Choba, Nigeria
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Aeromagnetic data acquired by the Nigerian Geological Survey Agency (NGSA) and which covers about 3025 square kilometer of some parts of onshore Niger Delta, Nigeria, was processed and interpreted with the purpose of highlighting the structural lineaments with their corresponding trend patterns and then inferring the effect of the structures as it relates to the hydrocarbon potential and tectonic history of the area using the qualitative approach. Using polynomial fitting of degree two (2), regional - residual separation was carried out on the Composite Total Magnetic Intensity (CTMI) map, lying geographically within longitude 6°30'E-7°0'0''E and latitude 4°30'N-5°0'0'', and this generated the regional and residual maps. Some enhancement techniques applied upon the residual map gave rise to some directional gradient maps that depicted structural lineaments trending in the E - W, NE - SW, NW - SE and N - S directions. These lineaments influence the tectonics of the area and as such created faults and fractures that fostered the migration and entrapment of hydrocarbon, and perhaps mineral, within the area under review.
Lineaments, Polynomial Fitting, Migration, Concealment, Olobiri, Degema
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Bello Rasaq, Ofoha Chimezie Charles, Structural Interpretations Inferred from a High Resolution Aeromagnetic (HRAM) Data over Parts of Onshore Niger Delta, Nigeria, International Journal of High Energy Physics. Vol. 4, No. 3, 2017, pp. 23-31. doi: 10.11648/j.ijhep.20170403.11
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