Estimation of Sedimentary Thickness Using Spectral Analysis of Aeromagnetic Data over Part of Bornu Basin, Northeast, Nigeria

Adewumi, Taiwo; Salako, Kazeem Adeyinka; Salami, M. K.; Mohammed, Muraina Z.; Udensi, Emmanuel Emeka

doi:10.9734/ajopacs/2017/32302

Cited by 4 publications

(2 citation statements)

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“…The result from Euler deconvolution and spectral analysis reveal maximum sedimentary thickness of 3.56 and 3.50 km respectively while the result of the SPI shows a maximum sedimentary thickness of 4.20 km. Previous research works on sedimentary thickness for hydrocarbon maturation showed that the sufficient sedimentary thickness for hydrocarbon maturation is about 3 km and above (Bemsen et al, 2013;Salako and Udensi, 2013;Adewumi et al, 2017;Lawal and Nwankwo, 2014). The result from this study is ample enough to accommodate oil and gas accumulation.…”

Section: Resultsmentioning

confidence: 98%

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Okwokwo¹,

Adetona²,

Adewumi³

et al. 2018

J. Geol. Min. Res.

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This study focuses on the quantitative interpretation of aeromagnetic data to estimate the thickness of sediments over part of Bida Basin so as to identify possible areas of hydrocarbon potential. The study area covers an area of 24,200 km 2 located between latitude 8° 30ꞌN and 9° 30ꞌN and longitudes 5° 00ꞌE and 7° 00ꞌE. Aeromagnetic data in grid format containing eight sheets were analysed and interpreted. Polynomial fitting was used in regional/residual separation and this result to the residual field data that corresponds to the target source for further processing. Three depth estimating methods were employed in this study; Euler deconvolution, source parameter imaging and spectral depth analysis. Euler depth determination method reveals a maximum depth of 3.56 km around Mokwa and Batati areas. Shallow sources also exist around Pategi, Paiko, Izom and Lapai areas with an average depth ranging from 107.74 m to about 514.82 m. Source parameter imaging shows a deeper sedimentary thickness of 4.2 km in the same area with Euler deconvolution. Spectral depth analysis also showed a maximum sedimentary thickness of 3.50 km. It was found in the study that the maximum depths obtained might probably be sufficient enough for hydrocarbon maturation and gas accumulation. Further research using seismic reflection might be carried out in the areas where maximum depth was obtained.

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Section: Resultsmentioning

confidence: 98%

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Okwokwo¹,

Adetona²,

Adewumi³

et al. 2018

J. Geol. Min. Res.

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“…Hence, the estimated sedimentary thickness around Gubio, Gazabure, Munguno, and Masu sub-basins ranging from 5.8 to 6.5 km, is interpreted to be sufficient enough to warrant further hydrocarbon investigations. Adewumi et al (2017) estimated the sedimentary thickness in some part of the study area between 0.29 and 3.35 km, using conventional spectral analysis of aeromagnetic data. Goni et al (2016) estimated the sedimentary thickness of the basin, using Source Parameter Imaging (SPI) method, three areas were found to have appreciable sedimentary thickness situated around Baga, Gubio and Damboa sub-basins.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of sedimentary thickness and Curie point depths in the eastern part of Bornu Basin, North-Eastern Nigeria

Magama¹,

Sanusi²,

Mikailu³

et al. 2022

dujopas

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The Curie point depth is the depths at which subsurface temperature (approximately 580 oC) loses spontaneous magnetization within the rock units and magnetic minerals show features of paramagnetic susceptibility. In this research work sedimentary thickness and Curie point depths of the eastern parts of Bornu basin were investigated. The aeromagnetic data was subdivided into twenty-five (25) overlapping blocks, and each block was analyzed to obtain depth to basement (Zt) of the magnetic sources and depth to centroid (Zo). The depth values were then used to estimate CPD and Curie temperature (𝜃) within the study area. The result shows that the depth to basement (Zt) varies between 2.55 and 7.4 km, with an average value of 5.96 km, the depth to centroid (Zo) values varies between 8.4 and 14.15 km with an average value of 11.08 km, the CPD values varies between 15.11 and 19.0 km with an average value of 16.20 km.

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Mapping of subsurface geological structures and depth to the top of magnetic basement in Bornu Basin and its environs, NE Nigeria, for possible hydrocarbon presence

et al. 2022

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Estimation of Sedimentary Thickness Using Spectral Analysis of Aeromagnetic Data over Part of Bornu Basin, Northeast, Nigeria

Cited by 4 publications

References 0 publications

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Evaluation of sedimentary thickness and Curie point depths in the eastern part of Bornu Basin, North-Eastern Nigeria

Mapping of subsurface geological structures and depth to the top of magnetic basement in Bornu Basin and its environs, NE Nigeria, for possible hydrocarbon presence

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