Volume 4, Issue 1, March 2019, Page: 1-11
Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria
Rowland Akuzigi Ayuba, Department of Geology, Moddibbo Adama University of Technology Yola, Adamawa State, Nigeria
Ahmed Nur, Department of Geology, Moddibbo Adama University of Technology Yola, Adamawa State, Nigeria
Received: Jun. 20, 2018;       Accepted: Aug. 1, 2018;       Published: May 29, 2019
DOI: 10.11648/j.wjap.20190401.11      View  38      Downloads  4
Spectral depth analysis over parts of Nasarawa area was carried out using high resolution aeromagnetic data to determine the depth to bottom of magnetic sources, to enable build up a subsurface picture of basement configuration and possible sediments distribution that promote hydrocarbon exploration in the area. The study revealed one and in most cases two source model, these are the deep magnetic anomaly sources and the shallow magnetic anomaly sources. The deep sources anomalies vary between 2.23km and 5.11km with an average depth of 3.05km and this represents the magnetic basement depth. The shallow anomaly sources vary from 0.07km to 0.42km with an average of 0.21km and this may be regarded as the magnetic intrusions into the sediment, probably through the magmatic activities. The revelation from this study of 3.05km magnetic basement depth at the southern part of the area is synonymous to depth of Cretaceous sediment, which is very significant to hydrocarbon generation potential in the area. The result shows the graben nature and indicated the existence of a deeper sub basin in the area. The central and south-western parts with higher sedimentary thicknesses are the most probable sites for hydrocarbon accumulation.
Magnetic Anomaly, Basement Depth, Nasarawa, Hydrocarbon Potential
To cite this article
Rowland Akuzigi Ayuba, Ahmed Nur, Interpretation of High Resolution Aeromagnetic Data for Hydrocarbon Potentials over Parts of Nasarawa and Environs North-Central Nigeria, World Journal of Applied Physics. Vol. 4, No. 1, 2019, pp. 1-11. doi: 10.11648/j.wjap.20190401.11
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Adeleye, D. R, (1975) Nigerian late Cretaceous stratigraphy and paleogeography. AAPG Bull59:2302–2313.
Balogun, O. Y., 2003. Senior Secondary Atlas. 2nd Ed. Longman Nigeria.
Bath, M. (1974) Spectral analysis in Geophysics Elsevier Amsterdam, 20-100.
Bhattacharrya, B. K. (1966). Continuous Spectrum of the total magnetic field anomaly due to rectangular prismatic body, Geophysics, 31, 97–121.
Bird, D. E. (1997): Primer: Interpreting Magnetic data. America Association of Petroleum Geologist Explorer. 18 (5), pp 18-21.
Dobrin, M., & Savit, C. (1988). Introduction To Geophysical Prospecting (Fourth Edition ed.). Singapore: McGraw-Hill.
Ford, S. O. (1981): The Economic Mineral Resources of the Benue Trough. Earth Evolution Sciences Vol. 1, No. 2, pp154-163.
Grant, N. K. (1971). South Atlantic, Benue Trough and Gulf of Guinea Cretaceous triple Junction; Geological Society of American Bulletin 82, pp. 2295–2298.
Johnson, W. W. (1969). A least - Squares method of interpreting magnetic anomalies caused by Two- Dimensional structures. Geophysics, Vol. 34, pp65 -74.
Jones, H. A. (1965): The Geology of Benue Trough. Annual Report Geological Survey Nigeria 1965: 32-37.
Likkason, O. K. (2007). Angular spectral analysis of aeromagnetic data over middle Benue trough Nigeria. Journal Min. Geol. 43 (1); 53–62.
Mishra, D. C. and Naidu, P. S. (1974). Two-dimentional Power spectral analysis of aeromagnetic fields, Geophysics Prop, 22, 345–534.
Nigerian geological Survey Agency. (2006). Geological Map of Nigeria, scale: 1:2, 000, 000.
Nigerian Geological Survey Agency Abuja. 2009. High Resolution Airborne Geophysical Series-Magnometer Survey Grid Map of Total Intensity (16 sheets). Scale 1: 100,000.
Nur, M. A., Onuoha, K. M. and Ofeogbu, C. O. (1994). Spectral analysis of aeromagnetic data over the middle Benue trough, Nigeria. Jour. Min. Geol. 30 (2):211–217.
Nur, A. (2000). Analysis of aeromagnetic data over Yola arm of the upper Benue trough, Nigeria Jour. Min. Geol. 1 (1):129–142.
Nur, A., Ofoegbu, C. O. and Onuoha, K. M. (2002). Spectral analysis and Hilbert transform of aeromagnetic data over the Upper Benue Trough, Nigeria. Global Journal of Geological Sciences, Volume 1, No 2, Pages 129–142.
Nwachukwu, J. I. (1985) Petroleum Prospects of Benue Trough, Nigeria, Am Assoc. Pet. Geol., Bull., 69 (4), 601-609Mishra, D. C. and Naidu, P. S; 1974. Two-dimentional Power spectral analysis of aeromagnetic fields, Geophysics Prop, 22, 345–534.
Nwonsu O. B, Umego M. N, Onuba L. N., (2013). Spectral Re-Evaluation Of The Magnetic Basement Depth Over Parts Of Middle Benue Trough Nigeria Using HRAM International Journal Of Scientific and Technology Research Volume 2, Issue 10, Issn 2277-8616.
Obaje N. G (1994) Coal petrography, microfossils and paleoenvironments of Cretaceous coal measuresin the Middle Benue Trough of Nigeria. Tuebinger Mikropalaeontologische Mitteilungen 11,1–165.
Obaje, N. G. (1997): Petrographic evaluation of the coking potential of the Cretaceus Obi/Lafia coal deposits in the Benue Trough of Nigeria ZcitsclirififurAngc’n’andte Geologic, VoI. 43, pp. 2 8-223.
Obaje, N. G. and Hamza, H. (1999): Liquid hydrocarbon source rock potential of Cretaceous coals and coal measures in the Middle Benue Trough of Nigeria. Jniernatzonal. Jow’nalof Earth Sciences, Vol. 89 (1), pp. 63—79.
Ofoegbu, C. O. (1984) Aeromagnetic anomalies over the lower and middle Benue Trough Nigeria; Nigeria Journal of mining and geology Vol. 21, pp. 103- 108.
Ofoegbu, C. O. (1985). A review of the geology of the Benue Trough of the Nigeria; Journal of African Sciences, Vol. 3 pp. 285-291.
Ofoegbu, C. O. (1986). A preliminary result of a pseudogravity study of the Benue Trough, Nigeria. J. Afr. Earth Sci; 5: 187- 192.
Ofeogbu, C. O. and Onuoha, K. M. (1991). Analysis of magnetic data over the Abakaliki Anticilionrium of the lower Benue trough, Nigeria. Marine and Petrol. Geol. 8:174–183.
Offodile. M. E. (1976). The Geology of the Middle Benue, Nigeria. Palaentological Institute, University Uppsala, Special Publication,, 4:pp 1-166.
Skeels, D. C. (1967): What is Residual Gravity? Geophysics, 32: 872 -876.
Spector, A. and Grant, T. S. (1970). Statistical models for interpreting aeromagnetic data. Geophysics.
Udensi, E. E., Osazuwa, I. B. and Daniyan, M. A. (2000). Production of a composite aeromagnetic map of the NupeBasin. Nigeria Journal of Science, Technology and Mathematics Education. Pages 150–159.
Udensi E. E, Osazuwa, I. B., (2004) Spectral determination of depths to magnetic rocks under the Nupe Basin, Nigeria. NAPE Bull 17:22–27.
Wright, J., Hastings, D., Jones, W., & Williams, H. (1985). Geology and Mineral Resources of West Africa. London: George Allen and Unwin publishers Ltd.
Browse journals by subject