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Natural Radioactivity and Radioelement Potentiality of Mylonite Rocks in Nugrus Area, Southeastern Desert, Egypt

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dc.contributor.author Oraby, A. H.
dc.contributor.author Saleh, G. M.
dc.contributor.author Hassan, E. M.
dc.contributor.author Eldabour, S. E.
dc.contributor.author Tohamy, A. M. El
dc.contributor.author Kamar, M. S.
dc.contributor.author El Feky, M. G.
dc.contributor.author Taher, A. El
dc.date.accessioned 2023-07-15T10:03:34Z
dc.date.available 2023-07-15T10:03:34Z
dc.date.issued 22-12-15
dc.identifier.uri http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/10834
dc.description.abstract The present study focuses on the distribution of natural radionuclides and the determination of radioelement favorability in the Nugrus mylonite rock. The radionuclide contents were measured with a NaI(Tl) detector. The concentrations of U, Th, Ra (in terms of eU), and K in the mylonite studied range from 27 to 247 ppm, from 96 to 377 ppm, from 11 to 166 ppm, and from 1.14 to 3.12%, with the averages of 100 ppm, 201 ppm, 55 ppm, and 2.1%, respectively. The interelement relationships indicate that the radioelement distribution is not only magmatic but also hydrothermal. Variations of migration parameters for uranium indicate fluctuations in physicochemical conditions that lead to U accumulation and leaching processes, which are confirmed by increments and decrements in uranium concentrations. The examined samples demonstrate disequilibrium, with eU/Ra (eU) ranging from 1.32 to 3.26, with an average of 1.95, which suggests uranium addition. Uranium, thorium, and potassium favorability indices of the investigated mylonite rocks indicate moderate favorability of these rocks for uranium and thorium and high favorability for potassium. The F-parameter illustrates the presence of different stages of alterations. Mineralogical investigation indicates the presence of such radioactive minerals as thorite and Uranothorite, of Nb–Ta minerals (columbite and ishikawite), and of zircon and xenotime. en_US
dc.language.iso en_US en_US
dc.publisher Scopus en_US
dc.subject Natural radioactivity en_US
dc.title Natural Radioactivity and Radioelement Potentiality of Mylonite Rocks in Nugrus Area, Southeastern Desert, Egypt en_US
dc.type Article en_US


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