 | Shalaby, Ibrahim M., Stumpfl, Eugen, Helmy, Hassan M., El Mahallawi, Mahmoud M., Kamel, Omar A. (2004) Silver and silver-bearing minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt. Mineralium Deposita, 39 (5) 608-621 doi:10.1007/s00126-004-0427-y | Journal (article/letter/editorial) | | minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt Received: 22 August...2004 Abstract The Um Samiuki Zn–Cu–Pb–Ag mineralisation, south Eastern Desert, Egypt is hosted by felsic...sulphide ore, sphalerite, chalcopyrite, pyrite, galena, bornite and tetrahedrite–tennantite are major...and covellite accommodate 80% of silver in the Um Samiuki deposit. Ag was incorporated in the crystal structure...D. Lentz I. M. Shalaby Geological Survey of Egypt, Egypt E. Stumpfl Institute of Mineralogy and Petrology |  | | Journal (article/letter/editorial) | | talc-copper deposits of Darhib-Abu Jurdi area, Egypt: Petrogenesis and remote sensing characterization...Department, National Research Centre (NRC), Cairo, Egypt 2 Safaa M. Hassan2 | Mohamed F. Sadek2 Economic...Remote Sensing and Space Sciences (NARSS), Cairo, Egypt sulfide system in Darhib-Abu Jurdi bimodal-mafic...Department, National Research Centre (NRC), Cairo, Egypt. Email: mwalibik2007@yahoo.com rift-related environment...com/publon/10. 1002/gj.3742. South Eastern Desert of Egypt. These Pan-African metavolcanics were erupted in |  | | Journal (article/letter/editorial) | | where they occur in ores containing chalcopyrite, galena, sphalerite, tennantite bornite. Other Ag- and...(phase z) Bambolla, Mexico (cervelleite) Um Samiuki, Egypt (cervelleite) Epithermal deposits Shadiitsa...with galena, chalcopyrite, sphalerite, pyrite, freibergite; anhedral 0.050.08 mm grains in galena with...subhedral crystals close to margins of hessite and galena grains; 2) as inclusions in sphalerite with silver-rich...Associated minerals: sphalerite, pyrite, chalcopyrite, galena, bornite, fahlore, hessite, and electrum. Aksenov |  | | Journal (article/letter/editorial) | | volcanic rocks and massive sulphide deposits in Egypt Nagy Shawky Botros Egyptian Geological Survey, Dakahlia...Botros, Abtal El Faloga Street, Mit Ghamr 35611, Egypt Received 14 August 2002; accepted 1 July 2003 Abstract...sulphide (VHMS) deposits in the Eastern Desert of Egypt (e.g., Um Saki deposit) are associated with Precambrian...On the other hand, the economic talc deposits in Egypt are hosted intensively altered volcanic rocks. Besides...talc deposits of Darhib, El Atshan, Abu Gurdi, Egat, Um Selimat and Nikhira are similar to those occurring |  | | Journal (article/letter/editorial) | | Cu, and Te), natural cinnabar (HgS) for Hg and galena (PbS) for Pb, and the following synthetic minerals:...– Emperor; 8–10 – Benleonardite (USY-1) – Um Samiuki, Egypt (H.M. Helmy, unpublished data) 31.43 11.49...4e and f), pyrite, chalcopyrite, sphalerite, and galena. Krennerite After sylvanite, krennerite (Au,Ag)Te2...Thieben, 1996), the Um Samiuki Zn–Pb–Cu–Ag volcanogenic massive sulfide deposit, Egypt (Helmy 300 D....Austria (open square; Horne et al., 1997), and Um Samiuki, Egypt (circles; this study) et al., 1999), and |  | | Journal (article/letter/editorial) | | Faculty of Science, Benha University, 13518 Benha, Egypt AN 1Department US Basem A. Zoheir1,2,*, Peter...Gold has been mined in the Eastern Desert T of Egypt, in the northwestern part of the ANS, for more than...Distribution and genetic characteristics, Eastern Desert, Egypt, Neoproterozoic, Accretionary orogen, Arabian-Nubian...alluvial concentrations in the eastern part of Egypt for more than 6,000 years, from before the time...eastern Egypt, through Sudan, Eritrea, and Ethiopia, and into Kenya (Fig. 1). Prior to Red Sea rifting |  | Abd El-Rahman, Yasser, Polat, Ali, Dilek, Yildirim, Kusky, Tim M., El-Sharkawi, Mohamed, Said, Amir (2012) Cryogenian ophiolite tectonics and metallogeny of the Central Eastern Desert of Egypt. International Geology Review, 54 (16) 1870-1884 doi:10.1080/00206814.2012.682777 | Journal (article/letter/editorial) | | and metallogeny of the Central Eastern Desert of Egypt Yasser Abd El-Rahman a a b Sharkawi & Amir Said...Giza, 12613, Egypt b Ministry of Petroleum and Mineral Resources, Nasr City, Cairo, Egypt c Department...and metallogeny of the Central Eastern Desert of Egypt, International Geology Review, 54:16, 1870-1884...and metallogeny of the Central Eastern Desert of Egypt Yasser Abd El-Rahmana,b*, Ali Polatc , Yildirim...Giza 12613, Egypt; b Ministry of Petroleum and Mineral Resources, Nasr City, Cairo, Egypt; c Department |  | El-Raouf, Amr Abd, Doğru, Fikret, Abdelrahman, Kamal, Fnais, Mohammed S., El Manharawy, Ahmed, Amer, Omar (2023) Using Airborne Geophysical and Geochemical Methods to Map Structures and Their Related Gold Mineralization. Minerals, 13 (2) 237 doi:10.3390/min13020237 | Journal (article/letter/editorial) | | Science, Zagazig University, Sharkia Governorate, Zagazig 44519, Egypt Construction, Oltu Vocational College...El-Saqia area in the Central Eastern Desert of Egypt. Our approach combines airborne geophysical data...geochemical sampling, which indicates that pyrite, galena, pyrrhotite, and electrum contain good percentages...magnetic; geochemical; structure; CET; porphyry; gold; Egypt min13020237 Academic Editor: Stanisław Mazur Received:...The central part of the Eastern Desert (CED) in Egypt is regarded as a location rich in mineral resources |  | | Journal (article/letter/editorial) | | setting on the genesis of gold mineralization in Egypt N.S. Botros PII: DOI: Reference: S0169-1368(15)00102-X...setting on the genesis of gold mineralization in Egypt, Ore Geology Reviews (2015), doi: 10.1016/j.oregeorev...setting on the genesis of gold mineralization in Egypt N. S. Botros* Exploration Geologist AC CE P TE...NU SC R IP T Abstract The Eastern Desert of Egypt is well known as a gold-mining district since ancient...Nb–Ta and U mineralization in the Eastern Desert of Egypt. Anorogenic gold mineralization connected with post-orogenic |  | | Journal (article/letter/editorial) | | and Thieben, 1996), Um Samiuki Zn–Pb–Cu–Ag volcanogenic massive sulfide deposit, Egypt (Helmy et al., 1999;...Lorentz-polarization correction were performed with the CrysAlis RED (Oxford Diffraction, TABLE 3. Anisotropic displacement...software package. The program ABSPACK in CrysAlis RED (Oxford Diffraction, 2006) was used for the absorption...module layers. Grey, light blue, yellow, orange and red circles refer to Ag, Cu, S (S2), S/Te (S1) and Te...unit.* Bambolla Mayflower Ivigtut Emperor Um Samiuki 1 2 3 4 5 6 7 8 9 10 11 12 13 14 |  | Pilote, Jean-Luc, Piercey, Stephen J., Brueckner, Stefanie M., Grant, David (2016) Resolving the Relative Timing of Au Enrichment in Volcanogenic Massive Sulfide Deposits Using Scanning Electron Microscopy-Mineral Liberation Analyzer: Empirical Evidence from the Ming Deposit, Newfoundland, Canada. Economic Geology, 111 (6) 1495-1508 doi:10.2113/econgeo.111.6.1495 | Journal (article/letter/editorial) | | 100 m Fig. 2. Map outlining all the orebodies (red = massive sulfide; black = Lower Footwall zone) forming...with minor pyrrhotite-sphalerite and traces of galena-arsenopyrite ± cubanite ± sulfosalts ± tellurides...subrounded pyrite supported by a chalcopyrite- and galena-bearing matrix (Fig. 4a). The sulfide horizon contains...chalcopyrite, chl = chlorite, ep = epidote, gn = galena, mgt = magnetite, py = pyrite, qtz = quartz, ser...coarse-grained pyrite with interstitial chalcopyrite, galena, and sphalerite. (B). Massive sulfide consisting |  | | Journal (article/letter/editorial) | | U.N.D.P. (Lesotho) Geological Survey of Egypt, Cairo (Egypt) Volcanic rocks form a major group within...within the Basement Complex of the Eastern Desert of Egypt, and at Hamamid (lat. 24 ° 10'N, long. 34 ° 50'E)...amounts of pyrite, chalcopyrite and occasional galena. LITHOSTRATIGRAPHY OF SHEIKH SHADLI METAVOLCANICS...AND THE OLDER METASEDIMENTS IN UM SAMIUKI DISTRICT, EASTERN DESERT, EGYPT N.M. SHUKRI and M.S. MANSOUR... Cairo University, Cairo (Egypt) Geological Survey of Egypt, Cairo (Egypt) The present work has revealed |  | | Journal (article/letter/editorial) | | amounts of pyrite, chalcopyrite and occasional galena. LITHOSTRATIGRAPHY OF SHEIKH SHADLI METAVOLCANICS...AND THE OLDER METASEDIMENTS IN UM SAMIUKI DISTRICT, EASTERN DESERT, EGYPT N.M. SHUKRI and M.S. MANSOUR... Cairo University, Cairo (Egypt) Geological Survey of Egypt, Cairo (Egypt) The present work has revealed...metasediments yet known in the Basement Complex of Egypt, and delineated the structural features of the district |  | Kojima, Shoji, San Martín, María Constanza, Nagase, Toshiro, Nakashima, Daisuke, Bisso, Claudio, Menzies, Andrew (2021) Distribution of gold and silver and its relation with hypogene ore minerals in the Esperanza porphyry deposit, Antofagasta Region, Chile. Resource Geology, 71 (1). 80-90 doi:10.1111/rge.12250 | Journal (article/letter/editorial) | | and later polymetallic stage with tennantite and galena in the chlorite-sericitic alteration zone. Only...chalcopyrite inversion. In contrast, tennantite and galena of the later-stage mineralization contain no detectable...zone within the hornfels is characterized by brown-red-colored granoblastic varieties, consisting of coarse-grained...Mala Formation at 2,000 to 1,500 m height above sea level (Figure 2a). In contrast, the Molybdenum Porphyry...Triassic meta-andesite horizon at <1,300 m height above sea level. The Principal and Molybdenum Porphyries exhibit |  | | Journal (article/letter/editorial) | | and Thieben 1996), the Um Samiuki volcanogeneic massive sulfide deposit, Egypt (Helmy 1999), epithermal...Helmy HM (1999) The Um Samiuki volcanogenic Zn-Cu-Pb-Ag deposit, Eastern Desert, Egypt: a possible new occurrence...Diffraction (2006) CrysAlis RED (Version 1.171.31.2) and ABSPACK in CrysAlis RED. Oxford Diffraction Ltd...(1996) Presencia de cervelleíta y hessita en la galena del yacimiento San Martín, Valcheta, prov. de Río |  | | Journal (article/letter/editorial) | | Gold in Egypt: Does the future get worse or better? N.S. Botros PII: DOI: Reference:...Please cite this article as: Botros, N.S., Gold in Egypt: Does the future get worse or better?, Ore Geology...journal pertain. ACCEPTED MANUSCRIPT GOLD IN EGYPT: DOES THE FUTURE GET WORSE OR BETTER? N. S. Botros*... NU SC R IP T Within the Eastern Desert of Egypt, there are more than hundred vein-type gold deposits...the new targets for gold in the Eastern Desert of Egypt. In most of these targets, gold displays a bimodal |  | Voudouris, Panagiotis Christos, Spry, Paul G., Sakellaris, Gregory Aarne, Mavrogonatos, Constantinos (2011) A cervelleite-like mineral and other Ag-Cu-Te-S minerals [Ag2CuTeS and (Ag,Cu)2TeS] in gold-bearing veins in metamorphic rocks of the Cycladic Blueschist Unit, Kallianou, Evia Island, Greece. Mineralogy and Petrology, 101 (3) 169-183 doi:10.1007/s00710-011-0144-z | Journal (article/letter/editorial) | | cervelleite-like phase could have exsolved from galena during cooling (below 200°C). Initial temperatures...and Thieben 1996), the Um Samiuki volcanogeneic massive sulfide deposit, Egypt (Helmy 1999), epithermal...(Dürr et al. 1978). Miocene extension in the Aegean Sea was accompanied by the intrusion of magmatic rocks...Te), pyrite and chalcopyrite (for Fe, Cu and S), galena (for Pb), sphalerite (for Zn), HgS (for Hg), Sb2S3...Te), pyrite and chalcopyrite (for Fe, Cu and S), galena (for Pb), sphalerite (for Zn), Sb2S3 (for Sb) and |  | | Journal (article/letter/editorial) | | gold deposits of Egypt Nagy Shawky Botros* Egyptian Geological Survey, Cairo, Egypt Received 14 August...located in the Nubian Shield have been known in Egypt since Predynastic times. Despite the fact that these...A three-fold classification of gold deposits of Egypt is offered here in harmony with this evolutionary... which constituted the main target for gold in Egypt since Pharaonic times, and disseminated-type mineralization...into consideration as a new target for gold in Egypt. Placer gold deposits are divided into modern placers |  | Cook, N. J., Ciobanu, C. L., Pedersen, O. S., Langerud, T. H., Karlsen, O. A. (2010) A new occurrence of larosite from the Tinnsjå Cu–Ag deposit, Telemark county, Norway. I. paragenesis and chemical composition. The Canadian Mineralogist, 48 (6) 1569-1573 doi:10.3749/canmin.48.6.1569 | Journal (article/letter/editorial) | | observed in the specimens investigated. Molybdenite, galena and other Cu sulfides (digenite, covelline) are...hammarite and subdecimetric grains of native gold. Galena, chalcopyrite and minor though relatively coarse-grained...minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt. Mineral. Deposita |  | | Journal (article/letter/editorial) | | apophysis, at levels between 325 and 227 m above sea level. Samples containing cervelleite came from anomalously...cervelleite, Hs: hessite, Wit: wittichenite, Gn: galena, Grt: (andradite) garnet, Bn: bornite. (a) Cervelleite...margin of a coarse aggregate of wittichenite and galena. (b) Ag2Cu2TeS phase and hessite associated with...coarse bornite, as minor components of bornite – galena intergrowths, characteristically enriched in chalcocite...chalcocite. Wittichenite, hessite, chalcocite and galena occur in intimate contact with cervelleite. Grains |  | Gu, Xiang-Ping, Watanabe, Makoto, Hoshino, Kenichi, Shibata, Yasuhiro (2003) New find of silver tellurosulphides from the Funan gold deposit, East Shandong, China. European Journal of Mineralogy, 15 (1) 147-155 doi:10.1127/0935-1221/2003/0015-0147 | Journal (article/letter/editorial) | | 13 grains. It occurs in close association with galena, chalcopyrite, hessite, cervelleite (?), acanthite...stromeyerite, covellite, cerussite and unnamed Ag6AuCu2S5. Galena associated with silver tellurosulphides typically...pyrite (2-5 vol.%), less commonly sphalerite and galena, and trace amounts of gold-silver alloy, hessite...unnamed phase occurs in close association with galena, chalcopyrite, hessite, Ag6TeS2, acanthite and...reported an unnamed Ag10FeTe2S4 intergrown with galena and benleonardite (?) from the Boliden district |  | | Journal (article/letter/editorial) | | fluorite, hematite, and diverse sulfide (chalcopyrite, galena, bornite, tennantite) and selenide minerals. The...sphalerite for Zn, Ag2Te for Ag and Te, cinnabar for Hg, galena for Pb, GaAs for As, Bi2Se3 for Bi and Se, InSb...other tellurides. The most frequent sulfides are galena and chalcopyrite (e. g. Helmy 1999, Milesi et al...M. (1999): The Um Samiuki volcanogenic Zn – Cu – Pb–Ag deposit, Eastern Desert, Egypt: A possible new...Mogessie, A. (2001): Gabbro Akarem, Eastern Desert, Egypt: Cu – Ni – PGE mineralization in a concentrically |  | | Journal (article/letter/editorial) | | (sphalerite)–Zn, CuFeS2 (chalcopyrite)–Fe, PbS (galena)–Pb, and FeAsS (arsenopyrite)–As. Element detection...Gold–silver–telluride Minerals Pyrite, chalcopyrite, galena, arsenopyrite, sphalerite, native tin, scheelite...and pyrite. All other minerals are micron-sized. Galena forms frequent small particles, represented by...observed in supergene gold in close growth with galena in the form of a border and had microinclusions...in supergene gold in close 6 of 17 growth with galena in the form of a border and had microinclusions |  | Zoheir, Basem, Emam, Ashraf, Pitcairn, Iain K., Boskabadi, Arman, Lehaye, Yann, Cooper, Matthew J. (2019) Trace elements and isotope data of the Um Garayat gold deposit, Wadi Allaqi district, Egypt. Mineralium Deposita, 54 (1) 101-116 doi:10.1007/s00126-018-0807-3 | Journal (article/letter/editorial) | | and isotope data of the Um Garayat gold deposit, Wadi Allaqi district, Egypt Basem Zoheir 1,2 & Ashraf...evolution and potential fluid and metal sources of the Um Garayat gold deposit. Ore microscopy and BSE investigations...in part by pyrrhotite, chalcopyrite, sphalerite, galena, and gersdorffite. Freemilling gold occurs commonly...transition. Keywords Um Garayat gold deposit . Wadi Allaqi . South Eastern Desert of Egypt . Isotope C . O...Faculty of Science, Benha University, Benha 13518, Egypt Institute of Geosciences, University of Kiel, Ludewig-Meyn |  | | Journal (article/letter/editorial) | | 10.1180/minmag.2017.081.021. sphalerite and/or galena, suggesting that chalcopyrite is the preferred...2012; Belousov et al., 2016), or sphalerite and galena (e.g. Bethke and Barton, 1971; Blackburn and Schwendeman...chalcopyrite from the Um Samiuki volcanogenic massive sulfide (VMS) deposit, Egypt, hosting up to 4.3...micro-inclusions of Pb-bearing phases, frequently galena. Among such anomalous reports are 7054 ppm Pb in...host more Sn than co-crystallizing sphalerite or galena. Reports of high levels of manganese in chalcopyrite |
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