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- W2610502738 abstract "Aeromagnetic data acquired by the Nigerian Geological Survey Agency and which covers about 3025 square kilometer of some parts of onshore Niger Delta, Nigeria, was processed and interpreted with the purpose of determining the depth to basement of the study area, delineating areas suitable for hydrocarbon and mineral accumulation, establishing the basement topography, highlighting the structural lineaments with their corresponding trend patterns and then inferring the effect of the above findings as it relates to the tectonic history of the area using the qualitative and quantitative 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″ N, 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 faulting and fracturing within the area under review. Quantitatively, the sedimentary thickness was determined using the deeping spikes (blue and green colours) and the shallow spikes (violet, yellow and red colours) models. The deeping spikes highlight zones of deeper magnetic bodies while the shallow spikes reveal magnetic bodies of shallow origin. The deeping spikes also indicate areas with thicker sedimentary cover while the shorter or shallow spikes highlight areas affected with magnetic intrusions. These thick sediments range from 5158.8 m to 11040.2 m but with an average depth of 7359.98 m. The short spikes have sediments thickness ranging from 871.2 m to 4617.7 m but with an average depth of about 2864.24 m. On the average, a thickness value of 4939.2 m was obtained and this suggested that the area holds a promise for the exploration of hydrocarbon." @default.
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- W2610502738 date "2017-01-01" @default.
- W2610502738 modified "2023-09-27" @default.
- W2610502738 title "Qualitative and Quantitative Interpretation of Parts of Onshore Niger Delta, Nigeria, Using High Resolution Aeromagnetic Data" @default.
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