 | | Journal (article/letter/editorial) | | uranium and thorium minerals, Um Ara granites, south Eastern Desert, Egypt Hamdy H. Abd El-Naby Nuclear...Materials Authority, P.O. 530 El-Maadi, Cairo, Egypt a r t i c l e i n f o Article history: Received...2009 Available online 1 March 2009 Keywords: Egypt Um Ara U-rich thorite Thorite Zircon Uranophane Alteration...Alteration a b s t r a c t The Um Ara area, in the south Eastern Desert of Egypt contains a number of uranium...thorium-bearing minerals found in mineralized zones of the Um Ara alkali-feldspar granites; uranophane is the most |  | Abdalla, Hamdy, Matsueda, Hiroharu, Ishihara, Shunso, Miura, Hiroyuki (1994) Mineral Chemistry of Albite-Enriched Granitoids at Um Ara, Southeastern Desert, Egypt. International Geology Review, 36 (11) 1067-1077 doi:10.1080/00206819409465505 | Journal (article/letter/editorial) | | Mineral Chemistry of Albite-Enriched Granitoids at Um Ara, Southeastern Desert, Egypt a a a Hamdy Abdalla...Mineral Chemistry of Albite-Enriched Granitoids at Um Ara, Southeastern Desert, Egypt, International Geology...Mineral Chemistry of Albite-Enriched Granitoids at Um Ara, Southeastern Desert, Egypt HAMDY ABDALLA, HIROHARU...resulted in the development of a radioactive and albite-enriched microgranite stock. The mineral paragenesis...muscovite also are lies in the Southeastern Desert of Egypt was observed. Sphene, magnetite, apatite, and zirfound |  | Moussa, Ewais M.M., Stern, Robert J., Manton, William I., Ali, Kamal A. (2008) SHRIMP zircon dating and Sm/Nd isotopic investigations of Neoproterozoic granitoids, Eastern Desert, Egypt. Precambrian Research, 160 (3) 341-356 doi:10.1016/j.precamres.2007.08.006 | Journal (article/letter/editorial) | | investigations of Neoproterozoic granitoids, Eastern Desert, Egypt Ewais M.M. Moussa a,∗ , Robert J. Stern b , William...Materials Authority, P.O. Box 530, El Maadi, Kattamyia, Egypt Geosciences Department, University of Texas at Dallas...Arabian–Nubian Shield; Granite; Egypt 1. Introduction Neoproterozoic basement in Egypt outcrops over ∼100,000...Simplified geologic map of the Eastern Desert of Egypt showing study areas, modified after Stern and Hedge...older granitoids; Al Missikat younger granite and Um Ara younger granite (Fig. 1). 27 26 25 24 23 22 21 |  | | Journal (article/letter/editorial) | | Granitoids and Associated Rocks, Eastern Desert, Egypt a b Fathy H. Mohamed , Hamdy M. Abdalla & Hossam...Alexandria, Egypt b Nuclear Materials Authority , P. O. Box 259, C. N., Alexandria, 21111, Egypt c Department...Alexandria University , Moharem Bek, Alexandria, Egypt Published online: 06 Jul 2010. To cite this article:...Granitoids and Associated Rocks, Eastern Desert, Egypt, International Geology Review, 41:10, 932-948, DOI:...Granitoids and Associated Rocks, Eastern Desert, Egypt F A T H Y H. MOHAMED, Department of Geology, Alexandria |  | | Journal (article/letter/editorial) | | Granitoids and Associated Rocks, Eastern Desert, Egypt Hamdy M. Abdalla1, Hossam Helba2 and Hiroharu Matsueda3...Alexandria, Egypt, 2Faculty of Science, Alexandria University, Moharem Bek, Alexandria, Egypt, History Museum...(i) peralkaline, Zr + Nb-enriched, A1-granite (e.g. Um Hibal); (ii) metaluminous, Nb + Zr + Y-enriched,...peraluminous, Ta ³ Nb + Sn + Be ± W-enriched, Li-albite granite (e.g. Nuweibi, Igla and Abu Dabbab). The...feldspar granite (i.e. apogranite; e.g. Um Ara, Abu Rusheid, and Um Naggat). Zircon of peralkaline granite |  | | Journal (article/letter/editorial) | | and the associated rocks in the Eastern Desert, Egypt Hamdy M. Abdalla*, Hiroharu Matsueda**, Mohamed...Authority, P.O. Box 259, C.N. 21111, Alexandria, Egypt Natural History Museum, Hokkaido University, Sapporo...Japan *** Faculty of science, El Fayoum University, Egypt ** - The study of chemical zoning, color and...associations: metasomatized granites and lithium albite granites. The cassiterite of the metasomatized...the other hand, the cassiterite in the lithium albite granite is enriched in Ta, Nb (with low Nb/Ta ratio) |  | EL-AFANDY, Adel H., ABDALLA, Hamdy M., ALY, Mohsen M., AMMAR, Fathy (2000) Geochemistry and Radioactive Potentiality of Um Naggat Apogranite, Central Eastern Desert, Egypt. Resource Geology, 50 (1) 39-51 doi:10.1111/j.1751-3928.2000.tb00054.x | Journal (article/letter/editorial) | | Radioactive Potentiality of Um Naggat Apogranite, Central Eastern Desert, Egypt Adel H. EL-AFANDY, Hamdy...ALY and Fathy AMMAR Abstract: The northern part of Um Naggat granite massif (UNGM) has suffered extensive...development of (Zr, Hf, Nb, Ta, U, Th, F)- and albite-enriched and greisenized apogranite body (UNAP)...mineralized productive granite. (UNGM) (Fig. 1). Um Naggat apogranite (UNAP) comprises albitized (Na-metasomatized)...granites. The alteration processes were concluded by a red hematitic and black Mn-oxide alteration occurring |  | | Journal (article/letter/editorial) | | Characterization of Beryl-Bearing Granitoids, Eastern Desert, Egypt: Metallogenic and Exploration Constraints rge_085...Abdalla Nuclear Materials Authority, Alexandria, Egypt Abstract Mineral chemistry and geochemical characteristics...of beryl-bearing granitoids in Eastern Desert of Egypt, were examined in order to identify the metallogenetic...peraluminous, Ta ⱖ Nb + Sn + Be ⫾ W-enriched, Li-albite granite (e.g. Nuweibi and Abu Dabbab); and (ii)...of volatiles. Keywords: Be-granites, beryl, Li-albite granite, apogranite. 1. Introduction So-called |  | Azer, Mokhles K., Gahlan, Hisham A., Asimow, Paul D., Al-Kahtany, Khaled M. (2019) The common origin and alteration history of the hypabyssal and volcanic phases of the Wadi Tarr albitite complex, southern Sinai, Egypt. Lithos, 324. 821-841 doi:10.1016/j.lithos.2018.12.015 | Journal (article/letter/editorial) | | the Wadi Tarr Albitite complex, southern Sinai, Egypt Mokhles K. Azer, Hisham A. Gahlan, Paul D. Asimow...the Wadi Tarr Albitite complex, southern Sinai, Egypt. Lithos (2018), https://doi.org/10.1016/j.lithos...the Wadi Tarr Albitite Complex, southern Sinai, Egypt Mokhles K. Azer1*, Hisham A. Gahlan2,3, Paul D....Sciences Department, National Research Centre, Cairo, Egypt 2 Department of Geology and Geophysics, King Saud...Geology Department, Assiut University, Assiut 71516, Egypt 4 Division of Geological & Planetary Sciences |  | Abdel Gawad, Ahmed E., Eliwa, Hassan, Ali, Khaled G., Alsafi, Khalid, Murata, Mamoru, Salah, Masoud S., Hanfi, Mohamed Y. (2022) Cancer Risk Assessment and Geochemical Features of Granitoids at Nikeiba, Southeastern Desert, Egypt. Minerals, 12 (5) 621 doi:10.3390/min12050621 | Journal (article/letter/editorial) | | of Granitoids at Nikeiba, Southeastern Desert, Egypt Ahmed E. Abdel Gawad 1, * , Hassan Eliwa 2 , Khaled...of Granitoids at Nikeiba, Southeastern Desert, Egypt. Minerals 2022, 12, 621. https://doi.org/ 10.3390/min12050621...Materials Authority, P.O. Box 530, Maadi, Cairo, Egypt; khaled_ali@yahoo.com (K.G.A.); masoudsalah85@gmail...Minufiya University, P.O. Box 32511, Shebin El Kom, Egypt; eliwa98@yahoo.com Department of Radiology, Consultant...veins) were investigated in the Nikeiba region in Egypt. The main components of the studied intrusive rocks |  | | Journal (article/letter/editorial) | | case study from the Homrit Waggat area of the Eastern Desert of Egypt Mokhles K. Azer1 | Khaled M. Abdelfadil2...Centre, Cairo, Egypt 2 Geology Department, Faculty of Science, Sohag University, Sohag, Egypt 3 Division... National Research Centre, 12622‐Dokki, Cairo, Egypt. Email: mokhles72@yahoo.com; mk.abdel‐ malak@nrc...granitoids of the Homrit Waggat area in the central Eastern Desert of Egypt reveal two magmatic phases. The...Frost, 2006). The northern The basement rocks of Egypt form the western half of the northern- exposures |  | Brigatti, M. F., Mottana, A., Malferrari, D., Cibin, G. (2007) Crystal structure and chemical composition of Li-, Fe-, and Mn-rich micas. American Mineralogist, 92 (8) 1395-1400 doi:10.2138/am.2007.2497 | Journal (article/letter/editorial) | | occur crystallizing on a substrate consisting of albite, microcline, quartz, and muscovite-lepidolite micas...following standards were used: microcline (K,Al), albite (Na), spessartine (Mn), ilmenite (Fe,Ti), clinopyroxene...τT1 (°) τT11 (°) Tetrahedral basal area T1 (Å2) Tetrahedral basal area T11 (Å2) Octahedral parameters ψM1...than the ideal 109.47° value. The tetrahedral basal area is greater for T11 (varying from 3.053 to 3.089...trends can also be deÞned for the octahedral hexagon area, deÞned by tetrahedral apical oxygen atoms (Fig |  | | Journal (article/letter/editorial) | | (northern Brazil). The deposit is associated with the albite-enriched granite facies of the A-type Madeira Granite...mineralization in the albite-enriched granite subfacies: the albite-enriched granite core, the albite-enriched granite...bulk-rock are 1.85 in the albite-enriched granite border, 3.82 in the albite-enriched granite core, and...xenotime. Keywords: thorite, thorium, solid solution, albite-enriched granite, Pitinga, Brazil. 1. Introduction...000 t), USA (595,000 t), Australia (595,000 t), Egypt (380,000 t), Turkey (374,000 t) and the CIS (excluding |  | | Journal (article/letter/editorial) | | Na-feldspar deposits of central Sardinia, Italy. The albite deposit of high economic grade has geological,...describe the albitite occurrences spread over an area of about 90 km2 around the villages of Orani and...samples from the largest albitite open pit in the area, which is located at Punta Is Paduleddas, NW of...were also studied. The oldest rocks known in the area are of Ordovician– Silurian age. They are only exposed...exposed in the northeastern part of the area (Fig. 1), at Punta Is Paduleddas, and consist of metasandstones |  | Bute, Saleh Ibrahim, Yang, Xiaoyong, Suh, Cheo Emmanuel, Girei, Musa Bala, Usman, Musa Bappah (2020) Mineralogy, geochemistry and ore genesis of Kanawa uranium mineralization, Hawal Massif, eastern Nigeria terrane: Implications for uranium prospecting in Nigeria and Cameroon. Ore Geology Reviews, 120. 103381 doi:10.1016/j.oregeorev.2020.103381 | Journal (article/letter/editorial) | | Aberdeen, AB24 3UE, Scotland, UK Abstract The Kanawa area, Eastern Nigeria Terrane (ENT), located proximal...with its spatially associated Mesozoic rocks in area, we suggest that the U mineralization was probably...granite suggesting that U mineralization Ekomédion area was probably sourced from the granites. In contrast...probably sourced from the Mesozoic rocks in the area. These chains of Mesozoic volcanic and plutonic...could be linked to other mega shear zones in 2 Egypt and Saudi Arabia where similar U mineralization |  | | Book | | алмазного бурения и горных работ. 26 Вулканы Um Safi в Центрально-Восточной пустыне Египта ...проводившие минералогические исследования вулканитов зоны Um Safi, выявили наличие казолита, торита, ураноторита...отложениях (Um Bogma, Um Kharit Qattrani, Bahariya) 5) в алевролитах месторождения Hammamat (Um Tawat, Wadi...Примечание: - ниже порога обнаружения. El Missikat area (n=3) El Kammar, 1997 81.1 5.2 2 3.4 1.5 - SiO2...igneous and metamorphic rocks in Eastern Desert, Egypt//Appl Radiat Isot. 2006. Vol. 64. P. 131–137. 17 |
|
