Investigation of Curie Point Depth Using High Resolution Aeromagnetic of Igumale and Ejekwe Area, Lower Benue Trough Nigeria

John A Yakubu; I Dimeze Amuche; A Emmanuel Igwe; Abubakar Shuaibu; A Ngozi Okwesili

doi:10.17485/IJST/v16i8.27

Article

Investigation of Curie Point Depth Using High Resolution Aeromagnetic of Igumale and Ejekwe Area, Lower Benue Trough Nigeria

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v16i8.27

Year: 2023, Volume: 16, Issue: 8, Pages: 540-546

Original Article

Investigation of Curie Point Depth Using High Resolution Aeromagnetic of Igumale and Ejekwe Area, Lower Benue Trough Nigeria

John A Yakubu^1*, I Dimeze Amuche¹, A Emmanuel Igwe¹, Abubakar Shuaibu², A Ngozi Okwesili²

¹Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria
²Department of Physics, Kogi State University, Anyigba

*Corresponding Author
Email: [email protected]

Received Date:21 January 2021, Accepted Date:08 November 2022, Published Date:27 February 2023

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objective: To carryout geophysical investigation in Igumale and Ejekwe area with the aim of estimating the Curie point depth (CPD) and then evaluating the geothermal gradient and heat flow to see if it is viable for geothermal exploration. Methods: Spectral analysis method was employed in this research work. Findings: The results show that the CPD varies between 1.111 and 17.402km. It is observed that the CPD in the Eastern part of the study area (11 - 12.6km) is shallower when compared to the other parts of the area. The deepest CPD of about 16.6-17.4 km is found in the North-western part of the study area. The geothermal gradient varies between 33 - 52 °C/km. The average heat flow obtained in the study area is 101 - 484mWm-2. It ranges from 83 - 131 mWm-2. The study area is characterized with high heat flow and geothermal gradient. These results indicated that the study area has a good potential for the generation of geothermal energy especially at Ejekwe area. Novelty: The study successfully depicted area with good potential for geothermal exploration using spectral analysis method.

Keywords: High Resolution; CPD; Ejekwe; Igumale; Spectral Analysis

References

Komlafe A. A investigation into the tectonic lineaments and thermal structure of lake magadi, southern Kenya rift using integrated geophysical methods. . International Institute of geoinformation science and earth observation thesis
Be E, Udensi EE. Investigation of the Curie point isotherm from the magnetic fields of the eastern sector of central Nigeria. Geosciences. 2012;2:101–106. Available from: https://doi.org/ 10.5923/j.geo.20120204.05
Yakubu JA, Okeke FN, Obiora DN. Estimation of Curie point depth, geothermal gradient and heat flow within the lower Benue trough, Nigeria using high resolution aeromagnetic data. Modeling Earth Systems and Environment. 2020;6(3):1439–1449. Available from: https://doi.org/10.1007/s40808-020-00760-7
Yakubu JA, Agbedo JC, Ossai NM. Geophysical Investigation to Estimate the Curie Point Depth, Heat Flow And Geothermal Gradient In Soko And Ankpa, Benue Trough Nigeria. Malaysian Journal of Geosciences. 2020;4(2):86–89. Available from: https://doi.org/10.26480/mjg.02.2020.86.89
Ikeh JC, Ugwu GZ, Asielue K. Spectral depth analysis for determining the depth to basement of magnetic source rocks over Nkalagu and Igumale areas of the Lower Benue Trough, Nigeria. International Journal of Physical Sciences. 2017;12(19):224–234. Available from: https://doi.org/10.5897/ijps2017.4668
Nwankwo LI, Olasehinde PI, Akoshile CO. Heat Flow Anomalies from the Spectral analysis of Airborne Magnetic data of Nupe Basin, Nigeria. Asian Journal of Earth Sciences. 2010;4(1):20–28. Available from: https://scialert.net/abstract/?doi=ajes.2011.20.28
Bello R, Ofoha CC, Wehiuzo N. Geothermal Gradient, Curie Point Depth and Heat Flow Determination of Some Parts of Lower Benue Trough and Anambra Basin, Nigeria, Using High Resolution Aeromagnetic Data. Physical Science International Journal. 2017;15(2):1–11. Available from: https://doi.org/10.9734/PSIJ/2017/34654
Adetona AA, Salako KA, Rafiu AA. Curie depth and geothermal gradient from spectral analysis of aeromagnetic data over Upper Anambra and Lower Benue Basin, Nigeria. Nigerian Journal of Technological Research. 2017;12(2):20. Available from: https://doi.org/ 10.4314/njtr.v12i2.4
Murat RC. Stratigraphy and Paleogeography of the Cretaceous and lower Tertiary in southern Nigeria. African Geology. 1972;p. 251–266. Available from: https://doi.org/10.4314/njtr.v12i2.4
Reyment RA. Aspects of the geology of Nigeria-The Stratigraphy of the Cretaceous and Cenozoic Deposits. Ibadan University Press. 1965. Available from: www.scirp.org
Oweh BN, Ideozu RU, Emudiangbe JE. Aeromagnetic studies of sheet 248, 249, 268 and 269 lower Benue Trough Nigeria. International Journal of Science and Inventions Today. 2015;4(5):451–462. Available from: http://www.ijsit.com/admin/ijsit_files/AEROMAGNETIC%20STUDIES%20OF%20SHEET%20248,%20249,268%20AND%20269%20LOWER%20BENUE%20TROUGH,%20NIGERIA_IJSIT_4.5.5.pdf
Okubo YJ, Graf RJ, Hansen RO, Ogawa K, Tsu H. Curie point depths of the Island of Kyushu and surrounding areas, Japan. Geophysics. 1985;50(3):481–494. Available from: https:/doi.org/10.1190/1.1441926
Frost BR, Shive PN. Magnetic mineralogy of the lower continental crust. Journal of Geophysical Research. 1986;91(B6):6513. Available from: https:/doi.org/10.1029/JB091iB06p06513
Stampolidis A, Kane I, Tsokas GN, Tsourlos P. Curie point depths of Albania inferred from ground total field magnetic data. Surveys in Geophysics. 2005;26:461–480. Available from: https:/doi.org/10.1007/s101712-005-7886-2
Tanaka A, Okubo Y, Matsubayashi O. Curie point depth based on spectrum analysis of the magnetic anomaly data in East and Southeast Asia. Tectonophysics. 1999;306(3-4):461–470. Available from: https://doi.org/10.1016/S0040-1951(99)00072-4
Nwankwo LI, Olasehinde A, Co. Heat flow anomalies from the spectral analysis of Airborne Magnetic data of Nupe Basin Nigeria. Asian Journal of Earth Sciences. 2011;1:1–6. Available from: https:/doi.org/10.17311/aje2011.2028
Maden N. Curie-point Depth from Spectral Analysis of Magnetic Data in Erciyes Stratovolcano (Central TURKEY) Pure and Applied Geophysics. 2010;167(3):349–358. Available from: https:/doi.org/10.1007/s00024-009-0017-0

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© 2023 Yakubu et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)