Saleh, Gehad M., El-badry, Basma A., Sami, Mabrouk, Alhazani, Tamader, Amer, Omnia T., Sanislav, Ioan V., and Lasheen, El Saeed R. (2026) Mineralization and radioactive potential of Magal Gebreel rocks, South Eastern Desert, Egypt: Health risk evaluation. Nuclear Engineering and Technology, 58. p. 104165.

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Abstract

The present research aims to evaluate the radiation dosages in the Magal Gebreel granitic phases, which encompass monzogranites, alkali feldspar granites, and altered granites (widely exposed along the shear zone). The former rocks have an average of 89.28 ± 23.85 Bqkg−1 for 238U, 51.71 ± 9.65 Bqkg−1 for 232Th, and 995.34 ± 160.21 Bqkg−1 for 40K utilizing the NaI (Tl) analyzer. Alkali feldspar granites have an average of 146.32 ± 46.73 Bqkg−1 for 238U, 77.57 ± 11.21 Bqkg−1 for 232Th, and 1120.54 ± 26 Bqkg−1 for 40K. The later (altered granites) have the highest activity concentrations of 232Th (avg. 360.57 ± 58.02 Bqkg−1), 40K (avg. 1197.23 ± 106.53 Bqkg−1), and 238U (avg. 3797.50 ± 725.68 Bqkg−1), as well as their summation (avg. 2201.60 ± 250.62 Bqkg−1). It is obvious that the investigated rocks contain increased activity concentrations and therefore fall above the widely accepted worldwide requirements. The results of microscopic and ESEM analysis revealed large assemblages of significant minerals enclosed in the Magal Gebreel rocks such as precious, base metals, accessories, radioactive-bearing, REE-bearing, and Nb-Ta- bearing minerals. Radium equivalent, dose of human body, absorbed dose rate and annualized dosage, excess life-time cancer, coupled with extra radiological characteristics were inferred for these rocks. Given that the measures of most of these criteria are higher than the international average, it is distinct that the tested rocks (certainly altered granites) have a considerable effect on the natural gamma emission released.

Item ID:	90437
Item Type:	Article (Research - C1)
ISSN:	2234-358X
Copyright Information:	© 2026 Korean Nuclear Society, Published by Elsevier Korea LLC. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Date Deposited:	02 Feb 2026 23:03
FoR Codes:	37 EARTH SCIENCES > 3705 Geology > 370508 Resource geoscience @ 25% 37 EARTH SCIENCES > 3703 Geochemistry > 370303 Isotope geochemistry @ 30% 37 EARTH SCIENCES > 3706 Geophysics > 370605 Geothermics and radiometrics @ 45%
SEO Codes:	28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280107 Expanding knowledge in the earth sciences @ 100%
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