Unveiling the mineral resources and structural patterns in the Middle Benue Trough: a comprehensive exploration using airborne magnetic and radiometric data

Abstract

The Middle Benue Trough (MBT) in Northcentral Nigeria is a geologically significant area with vast mineral resource potential. Employing airborne magnetic and radiometric data, this study utilized the Centre for Exploration Targeting on enhanced total magnetic intensity data to reveal geologic structures, lithological units and mineralization zones. Lineaments predominantly trended in NE-SW direction, with noteworthy orientations in NNE-SSW and E-W. Radiometric anomalies correlated with distinct lithological units, pinpointing granitic gneiss, alluvium, shale, siltstone and sandstone. A magnetically concentrated and potassium-rich area indicated potential polymetallic-magnetic mineralization. The 2D model illustrated igneous intrusions influencing prevalent geologic structures, such as sediment baking and doming. Thorough analysis, including source parameter imaging, standard Euler deconvolution and 2D forward modelling, revealed sediment thicknesses below 1500 m. This research enhances understanding of the MBT’s geological features, offering valuable insights for mineral exploration and resource assessment in the region.

Keywords:

• Magnetic data
• radiometric data
• geologic structures
• centre for exploration targeting
• Middle Benue Trough

Author contributions

S.E.E., Conceptualization, methodology, data, processing, writing, original draft preparation. A.M.G., Validation, methodology. A.A.O., methodology, reviewing and editing, S.I.U., Validation, conceptualization. M.I.M., Methodology, investigation. K.A., Funding acquisition, review & editing. P.A., review & editing. A.E.A., review & editing. A.M.E., Methodology, reviewing and editing, conceptualization. All authors have read and agreed to the published version of the manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data used in this study can be made available upon request to the corresponding author (Dr. Ahmed M. Eldosouky).

Additional information

Funding

This wok was supported by Researchers Supporting Project number (RSP2024R351), King Saud University, Riyadh, Saudi Arabia.