 | | Journal (article/letter/editorial) | | 717â738 The Bisha Volcanic-Associated Massive Sulfide Deposit, Western Nakfa Terrane, Eritrea C. TUCKER...Alberta, Canada T2G 0V2 Abstract The Neoproterozoic Bisha volcanic-associated massive sulfide deposit (VMS)...in a newly discovered VMS district in western Eritrea. The host stratigraphic section comprises a large...possibly coeval and cogenetic intrusion known as the Bisha Gabbroic Complex, ~3 km downsection, a series of...Two other VMS deposits are present along strike: Bisha Northwest, 1.5 km to the north-northwest, and Harena |  | | Book | | Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea. Originally our goal was to include papers on deposits...the setting and origin of major deposits in the region, together with information on tonnages and grades...Northeast Africa, with a focus on deposits in Eritrea, Sudan, and Egypt. The second paper is by M. Bouabdellah...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron...Tunisia, and Comparisons with MVT Deposits in the Region . . . . . . . . . . 497 Sophie DecrĂ©e, Christian |  | | Journal (article/letter/editorial) | | to Yemen, in the south (Fig. 1). The Zalm gold mine is the most prominent geologic landmark in the area...investigation of the ancient gold workings at the Zalm mine. Also, Jackson et al. (1963) studied the area as...studied geology and gold mineralization at the Zalm mine during 4 exploration in the area (Figs. 1 and...EberlĂ© (1999) carried out exploration of the Zalm mine and the surrounding area. Agar (1985, 1988) recognized...reported on the nanoscale, namely anilite and chalcocite that display distinct rim replacement texture |  | Bierlein, F. P., McKeag, S., Reynolds, N., Bargmann, C. J., Bullen, W., Murphy, F. C., Al-Athbah, H., Brauhart, C., Potma, W., Meffre, S., McKnight, S. (2016) The Jebel Ohier depositâa newly discovered porphyry copperâgold system in the Neoproterozoic ArabianâNubian Shield, Red Sea Hills, NE Sudan. Mineralium Deposita, 51 (6) 713-724 doi:10.1007/s00126-015-0630-z | Journal (article/letter/editorial) | | principal localities and principal mines (1 Ariab, 2 Bisha, 3 Jebel Sayid, 4 Sukari) The Jebel Ohier mineralized...mineralized system is situated in a remote desert region some 300 km to the west-northwest of Port Sudan...Shield (ANS) in NE Africa, a geologically complex region with demonstrated pedigree for world-class orogenic...volcanic-hosted sulfide deposits (e.g., Ariab, Bisha, and Jebel Sayid; Fig. 1), but hitherto considered...these instances is replaced by covellite and/or chalcocite (Fig. 4c). Gold has been observed (though exceedingly |  | | Journal (article/letter/editorial) | | particularly in NE Sudan, Asmara, and Western Eritrea (Barrie et al. 2007, 2016). These supergene Au...near-surface region above the Scuddles underground VMS deposit. Fig. 1 a Golden Grove Region in the Archaean...from bleached kaolinitic saprolite near Scuddles mine indicate an older weathering event assigned pre-late...through and surround the silcrete body in Scuddles mine area. Out of the 108 RC drill holes, regolith profiles...Supergene sulfide enrichment zone dominated by chalcocite with minor covellite and primary sulfides. 2 |  | Volesky, John C., Leybourne, Matthew I., Stern, Robert J., Peter, Jan M., Layton-Matthews, Daniel, Rice, Sarah, Johnson, Peter R. (2017) Metavolcanic host rocks, mineralization, and gossans of the Shaib al Tair and Rabathan volcanogenic massive sulphide deposits of the Wadi Bidah Mineral District, Saudi Arabia. International Geology Review, 59 (16) 1975-2002 doi:10.1080/00206814.2017.1307789 | Journal (article/letter/editorial) | | the Shwas mineral district east of WBMD, and the Bisha (Barrie et al. 2007) and Asmara mineral districts...eastern margin of the Red Sea (Szymanski 2012). The region underwent a pre-rift PalaeozoicâMesozoic cooling... INTERNATIONAL GEOLOGY REVIEW Quebec. III. The Ansil mine: Canadian Journal of Earth Science, v. 28, p. 1699â1730...2007, The Bisha volcanic-associated massive sulfide deposit, western Nakfa Terrane, Eritrea: Economic...chemistry V. Solubilities of chalcopyrite and chalcocite assemblages in hydrothermal solution at 200°C |  | | Journal (article/letter/editorial) | | tonnages, as an open pit operation will typically mine large tonnages at lower grades, illustrating the...are among the earliest formed VMS deposits in the region (Walker and McDonald 1995; Goodfellow 2003). The...0 La Zarza 9.1 Karkaralinski Abyz (Karaganda region, Kazakhstan) 205.0 Gai 50.0 107.0 Yubileinoe...arsenopyrite, Bn bornite, Bo biotite, Cb carbonate, Cc chalcocite, Chl chlorite, Co cordierite, Cpy chalcopyrite...Group Belousov Kunduzdy Caribou Uzelg'a La Zarza Bisha Novo-Leninogorsk Horne - No. 5 Zone Kozmuran Jerome-United |  | | Journal (article/letter/editorial) | | deposit. Today, Sukari is the single major producing mine in US the Eastern Desert but many other significant...km from Sinai and eastern Egypt, through Sudan, Eritrea, and Ethiopia, and into Kenya (Fig. 1). Prior to...largescale open-pit and a high-grade underground mine. Franzmann et al (2015) report total T measured...underground operations in 2011. In 2012, the Sukari Gold Mine Co. mined 6.4 Mt of ore, processed 4.5 Mt of ore...the Ariab district in Sudan (Fig. 1) and at Bisha in Eritrea (Helmy, 1999; Barrie et al., 2007, 2016; Johnson |  | | Book | | Genesis of the Koka Gold Deposit in Northwest Eritrea, NE Africa: Constraints from Fluid Inclusions and...useful for revealing the geodynamic evolution of a region, and more effective for regional prospecting exploration...Genesis of the Koka Gold Deposit in Northwest Eritrea, NE Africa: Constraints from Fluid Inclusions and...evolution process of regional structures. This region is located within the southeastern margin of the...were significantly reworked during orogenies. The region witnessed migration and collision between the NCC |  | | Book (edition) | | visit to zincelead polymetallic ore deposit, Megan Mine, Germany. Source: Ref. 24. 10 1. ROCKS AND MINERALS...schist host rock at Kolihan Section, Khetri Copper Mine, India. 1.3. MINERALS 11 FIGURE 1.23 Chromite...texture in calc-silicate host rock at Rajpura-Dariba Mine, India. Source: Prof. Martin Hale. chromium with...a visit to zincelead polymetallic deposit, Megan Mine, Germany. and extremely high speciïŹc gravity occurs...garnet schist from Kolihan Section, Khetri Copper Mine, India. Source: Prof. Martin Hale. FIGURE 1.28 |  | | Book (edition) | | the mineral industry and human consequences 11.6.1 Mine waste catastrophe 11.6.2 Mineral process plant failure...tailing in the future. The tailing of Kolar gold mine, India, historically stored at tailing dam, is being...34) Tetragonal Cerussite, PbCO3 (Fig. 1.35) Chalcocite, Cu2S Chalcopyrite, CuFeS2 (Fig. 1.36) Orthorhombic...and alloys Delicate acicular ore at Broken Hill mine, Australia, Friedrichssegen, Germany. Secondary...metal and is also commonly associated with acid mine drainage, and acid sulfate soil environments 16 |  | | Book | | the arts is the proper focus of interest at every mine; that the operations converging on this point are...conditions The problem of ore treatment confronts every mine manager. Mining should be looked upon as a manufacturing...crushers that first take the ore as it comes from the mine (some of them can take 6-ft. cubes) are called COARSE...flow-sheet at a large mine has more steps and is more complicated than that at a small mine. Grade of ore. High-grade...The fact that the mill owner is also usually the mine owner is not sufficient insurance as to the adequacy |
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