Geochemistry and spectrometric prospection of younger granites and granitic pegmatites bearing uranium mineralization at G. Kab El Rakeb area, Central Eastern Desert, Egypt

Saleh, Gehad M.; Emad, Bahaa M.; Kader, Ibrahim. B. Abdel

doi:10.1007/s11631-021-00456-4

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…8b), the higher A/CNK values have the lowest concentrations of 232 Th. This is a good agreement by [3,25].…”

Section: Alumina Saturation Index In Relation With 238 U 232supporting

confidence: 90%

“…The results obtained from ICP-MS measurements of U/ Th and Th/U ranged from 0.22 to 0.45 ppm with an average of 0.35 ppm and from 2.22 to 4.49 ppm with an average 2.94 ppm respectively, (Table 2). The mean value of Th/U is 2.94 ppm, is lower than the world average ratio 3.5 ppm whereas the mean value of U/ Th is 0.35, which is almost equal to the global ratios 0.3 [25,26,27].…”

Section: Discussionmentioning

confidence: 82%

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Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

Heikal

El-Ela

Shereif

et al. 2022

Arab Journal of Nuclear Sciences and Applications

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Wadi El-Nabi' area (῀400km 2 ) constitutes Precambrian intrusive-extrusive complex related to the Egyptian-Nubian Shield (ENS). It includes ophiolitic serpentinites, felsic-mafic metavolcanics (bimodal metavolcanics), metapyroclastics (metatuffs), metagabbro-diorite complex, olivine gabbros, and troctolites (young gabbros), and monzo-syenogranites (younger granites). The field and lab radiometric measurements of radioelements, and their geochemical characteristics were carried out for (15) samples of monzo-syenogranites (55 km 2 ) by RS-230 γ-ray spectroscopy, and HpGe detector. Chemical analyses by ICP-MS are also obtained for the studied granitic rocks to verify the concentrations of specific elements and their inter-relationships with ( 238 U (ppm), 232 Th (ppm), and 40 K (%). Regarding the RS-230 measurements, the of radionuclide concentrations range are (4-6.6 ppm) for eU, (8.7-14.75 ppm) for eTh, and (3.62-5.15%) for K%. On the other hand, the chemical analysis for 238 U, 232 Th (ppm), and 40 K%, of monzo-syenogranites give rise to 3.04 ppm for 238 U, 9.44 ppm for 232 Th, and 1.82 % for 40 K%. The field, and lab radiometric measurements, chemical parameters of P, and D-factors ( 226 Ra/ 238 U, and Uc/Ur respectively) give rise to the disequilibrium state is well evident. On the other hand, the chemical interpretations given by multi-variation diagrams among 238 U, 232 Th, and 40 K, as well as selected elements indicate that the origin of the studied radioactive elements are related to the magmatic process, followed by the later post-magmatic process (hydrothermal).

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“…8b), the higher A/CNK values have the lowest concentrations of 232 Th. This is a good agreement by [3,25].…”

Section: Alumina Saturation Index In Relation With 238 U 232supporting

confidence: 90%

Section: Discussionmentioning

confidence: 82%

Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

Heikal

El-Ela

Shereif

et al. 2022

Arab Journal of Nuclear Sciences and Applications

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Processing of Abu Dob mineralized pegmatites, Central Eastern Desert, Egypt: a study on the kinetics of dissolution process and extraction of some valuable metals

Khoziem

2022

J Radioanal Nucl Chem

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Geochemistry and REE tetrad effect of the acidic volcanics and associated stream sediments, southeast G. El-Hadid area, Central Eastern Desert, Egypt

El-Metwally,

Abdel-Bary,

El-Azib

et al. 2024

Arab J Geosci

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Geochemistry and spectrometric prospection of younger granites and granitic pegmatites bearing uranium mineralization at G. Kab El Rakeb area, Central Eastern Desert, Egypt

Cited by 3 publications

References 34 publications

Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

Geochemical and Spectrometric Characteristics of Natural Radioactivity Levels (238-U, 232-Th, 40-K) of Monzo-Syenogranites from Wadi El-Nabi' Area, Egyptian Nubian Shield

Processing of Abu Dob mineralized pegmatites, Central Eastern Desert, Egypt: a study on the kinetics of dissolution process and extraction of some valuable metals

Geochemistry and REE tetrad effect of the acidic volcanics and associated stream sediments, southeast G. El-Hadid area, Central Eastern Desert, Egypt

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