Genesis of uranyl mineralization in the Arabian Nubian Shield: A review

Dawood, Yehia H.; El‐Naby, Hamdy H. Abd

doi:10.1016/j.jseaes.2021.105047

Journal of Asian Earth Sciences

2022

DOI: 10.1016/j.jseaes.2021.105047

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Genesis of uranyl mineralization in the Arabian Nubian Shield: A review

Yehia H. Dawood

Hamdy H. Abd El‐Naby

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2024

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Geochemical characteristics and petrogenesis of granitic pegmatite rocks in the Um Solimate area, south Eastern Desert, Egypt

Ghoneim

2024

Preprint

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The Um Solimate granitic pegmatite is an outstanding example of rare-metal mineralization in the Arabian Nubian Shield. In this contribution, new bulkrock compositions (major, trace and rare earth element (REE)) are presented to study and constrain the origin and processes that controlling the formation of the Um Solimate granitic pegmatite and associated rare metal mineralization. The granitic pegmatite rocks exhibit calc-alkaline and peraluminous properties, which are common features observed in A-type granites. The area under study reveals the significant presence of high field strength elements within the granitic pegmatite. Conversely, there is a noticeable deficiency in TiO2, K2O, and P2O5. The similarity in the geochemical characteristics of the granitic pegmatite and the muscovite granite provpes their genetic relationship. Mineralogical studies have identified a diverse range of minerals in granitic pegmatite, including columbite, bismoclite, xenotime, monazite, pyrite and garnet. Chondrite-normalized REE diagrams show a pronounced flat LREE, slight enrichment of HREEs, and significant negative Eu anomalies. The formation of granitic pegmatite in the study area involved a combination of processes, including partial melting and fractional crystallization. Pegmatite-forming melts can be produced through continuous fractional crystallization of granitic melts, resulting in the emplacement of A1-type rocks in an intraplate setting.

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Geochemical characteristics and petrogenesis of granitic pegmatite rocks in the Um Solimate area, south Eastern Desert, Egypt

Ghoneim

2024

Preprint

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show abstract

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Genesis of uranyl mineralization in the Arabian Nubian Shield: A review

Cited by 1 publication

References 74 publications

Geochemical characteristics and petrogenesis of granitic pegmatite rocks in the Um Solimate area, south Eastern Desert, Egypt

Geochemical characteristics and petrogenesis of granitic pegmatite rocks in the Um Solimate area, south Eastern Desert, Egypt

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