<abstract xmlns="http://www.w3.org/1999/xhtml">

The spectral analysis of aeromagnetic data over the study area (Northern basement complex, Nigeria) revealed the existence of two major source depths. The second segment of the spectrum layer shows shallow sources ranging in depth from 0.135 km to 0.201 km, with an average depth of 0.140 km. The depth to the basement or deeper source ranges between 1.655 km and 2.021 km, with an average depth of 1.882 km. The Precambrian basement is reflected in the deeper sources, beginning with the first segment of the power spectrum. Structural and topographic relief of the basement surface, lateral differences in basement susceptibilities, and intra-basement features such as faults and fractures contribute to the variation in basement composition. The mean thickness of sediments in the study area is represented by the D2 values obtained from the spectral plots. The depths revealed by this study appears to be reasonable and consistent with previous researchers’ findings. Tectonically active regions have a major impact on heat flows. The average heat flow in thermally normal continental regions is reported to be above 60 mW/m2. Values between 80 and 100 mW/m2 indicate a good geothermal source; values in excess of about 80–100 mW/m2 indicate anomalous geothermal conditions.
</abstract>

The spectral analysis of aeromagnetic data over the study area (Northern basement complex, Nigeria) revealed the existence of two major source depths. The second segment of the spectrum layer shows shallow sources ranging in depth from 0.135 km to 0.201 km, with an average depth of 0.140 km. The depth to the basement or deeper source ranges between 1.655 km and 2.021 km, with an average depth of 1.882 km. The Precambrian basement is reflected in the deeper sources, beginning with the first segment of the power spectrum. Structural and topographic relief of the basement surface, lateral differences in basement susceptibilities, and intra-basement features such as faults and fractures contribute to the variation in basement composition. The mean thickness of sediments in the study area is represented by the D2 values obtained from the spectral plots. The depths revealed by this study appears to be reasonable and consistent with previous researchers’ findings. Tectonically active regions have a major impact on heat flows. The average heat flow in thermally normal continental regions is reported to be above 60 mW/m2. Values between 80 and 100 mW/m2 indicate a good geothermal source; values in excess of about 80–100 mW/m2 indicate anomalous geothermal conditions.

Solid Mineral Potential and Geothermal Energy Reserve of Northern Basement Complex, Nigeria

Materials and Geoenvironment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Možna prisotnost rude in geotermalna energija v Severnem bazalnem kompleksu, Nigerija

The spectral analysis of aeromagnetic data over the study area (Northern basement complex, Nigeria) revealed the existence of two major source depths. The...

Solid Mineral Potential and Geothermal Energy Reserve of Northern Basement Complex, Nigeria

Article Category: Original Scientific Article

Publié en ligne: 28 août 2023

Pages: 85 - 103

Reçu: 17 avr. 2022

Accepté: 03 juin 2022

DOI: https://doi.org/10.2478/rmzmag-2021-0017

Mots clés
3-D Euler deconvolution, spectral inversion, magnetic basement depth, linear features, Nigeria

© 2022 Okechukwu Stephen Ifeanyi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Solid Mineral Potential and Geothermal Energy Reserve of Northern Basement Complex, Nigeria

Article Category: Original Scientific Article

Publié en ligne: 28 août 2023

Pages: 85 - 103

Reçu: 17 avr. 2022

Accepté: 03 juin 2022

DOI: https://doi.org/10.2478/rmzmag-2021-0017

Mots clés3-D Euler deconvolution, spectral inversion, magnetic basement depth, linear features, Nigeria

© 2022 Okechukwu Stephen Ifeanyi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
3-D Euler deconvolution, spectral inversion, magnetic basement depth, linear features, Nigeria