 | | Journal (article/letter/editorial) | | 717–738 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 |  | | Journal (article/letter/editorial) | | copper-zinc-lead-gold; sedimentary exhalative (SEDEX) zinc-lead-silver; orogenic and intrusion-related gold; iron oxide...east-west and 2,000 km north-south. This is a vast region with an array of geologic terranes composed of...The geology and mineral resources of this vast region have been thought about and studied for thousands...critical introduction to the mineral endowment of the region. One of the most valuable papers in the book, for...deposits in the region. The first part of this paper is a synthesis of geologic data for the region obtained |  | | 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...(VHMS) copper-zinc-gold-silver, (4) sedimentary-exhalative (SEDEX) zinclead-silver, (5) orogenic and intrusion-related...containing nickel-cobalt-arsenic-silver-bismuth(-uranium), (12) epithermal gold-silver, (13) skarn and replacement...Banks, and A. Samir describes the giant Imiter silver-mercury vein deposit and suggests that degassing |  | | Journal (article/letter/editorial) | | et al., 2013; Kozub, 2014) are mostly native silver, silver amalgams, stromeyerite (AgCuS), jalpaite (Ag3CuS2)... 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...Eberlé (1999) carried out exploration of the Zalm mine and the surrounding area. Agar (1985, 1988) recognized |  | 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 deposit—a newly discovered porphyry copper–gold system in the Neoproterozoic Arabian–Nubian Shield, Red Sea Hills, NE Sudan. Mineralium Deposita, 51 (6) 713-724 doi:10.1007/s00126-015-0630-z | Journal (article/letter/editorial) | | comprising magnetite-pyrite-chalcopyrite-bornite (±gold, silver and tellurides), and the recurrence of fertile...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 |  | | Journal (article/letter/editorial) | | geographic map, as well as the oldest geologic and mine map. The Fawakhir–El Sid district is part of a regional...exploration activity, especially in Egypt, Arabia, Eritrea, and Ethiopia (Figure 1). Recent discoveries of...in Eritrea, and Tulu Kapi in Ethiopia, attest to a largely untapped gold potential in this region. Exploration...within the structural and thermal evolution of the region based on geochronological information, which is...Location of the major gold deposits of Egypt, Sudan, Eritrea, Ethiopia, and western Saudi Arabia plotted on |  | | Journal (issue) | | ‘temporary land use’ Alisha Hiyate T he field of mine closure has changed dramatically over the past few...evolving. Case in point is the Social Aspects of Mine Closure Research Consortium. Established in 2019...aims to challenge accepted industry norms around mine closure. That includes going beyond current industry...consortium released a report on the repurposing of mine sites after closure. Aiming to enhance the industry’s...and associated economies have become a priority in mine lifecycle planning. What is interesting is that |  | | Journal (article/letter/editorial) | | University, Zagazig, Egypt. 2 University of Bisha, Bisha, Kingdom of Saudi Arabia. 3 Department of Computer...(RMB)] as well as coal, natural gas, copper, gold, silver, iron, and past oil prices (West Texas Intermediate...nickel, zinc, copper, gold, lead, platinum, and silver. Mo et al. (2018) investigated the dynamic linkages...of crude oil: coal, natural gas, copper, gold, silver, and iron prices; and CAD, EUR, and RMB exchange...Copper Monthly $/ton Gold price Monthly $/ozt Silver price Monthly $/ozt Coal Monthly $/ton Natural |  | | Report (issue) | | arsenic.......................... 14 Tellurium and silver...................... 14 Lead and molybdenum.....arsenic.......................... 15 Tellurium and silver...................... 15 Copper, zinc, lead and...sites of fanned concentrate samples anomalous in silver..i................... 20 Figure 8. Map showing...showing sites of minus-80-mesh samples anomalous in silver...................... 28 TABLES Table 1. Statistical...contact. Gold is associated with arsenic but not with silver. Five areas containing gold-anomalies areas and |  | | Journal (article/letter/editorial) | | Ethiopia. It is situated within the emerging mining region of the Arabian– Nubian Shield (ANS) that extends...grades assumed to be 7% Cu, 3% Zn, and 30 g/ton for silver (Intergeo 1989). In 1997–1998 JCI, a South African...1998; Groves 1998). The mineral distribution of the region together with the accessibility of Katta district...of Katta district and the different towns of the region. sion—the older more deformed Mozambique belt—is...-901 231 797 N -335 X (m) 31 IP anomalous region (sulphide zone) Figure 6. Series of sections obtained |  | | Journal (issue) | | maps. 530 pp. $4.50 XI APACHE GOLD AND YAQUI SILVER, J Gl G2 CALIFORNIA, A Guide to the Golden State...pocket map, 713 pp $4.50 G3 NEVADA, A Guide to the Silver State. American Guide series. Same type of coverage... 458 pages $4.50 Frank Dobie. Fascinating lost mine and buried treasure stories by a master story teller...MIRAGES, Philip A. Bailey. This is a favorite of lost mine books. Pegleg Smith's Gold, ghosts of Vallecito... Lost Pegleg, Lost Dutch Oven and 20 other lost mine legends of California, Nevada. Arizona and Texas |  | | Journal (article/letter/editorial) | | amphibolite-facies metamorphism experienced in this region as a result of the 1.3–1.0 Ga Namaqua Orogeny and...included gn melt at 40 to 50 s and from 60 s. Fig. 5. Silver content in ppm versus the correlation coefficient...deposits (e.g. Mercier-Langevin et al., 2011). Silver is highly concentrated in gn (approximately 0.2...valuable information on their spatial distribution. Silver in py usually occurs as inclusions of Pb–Ag(–Bi)...2007. The Bisha volcanic-associated massive sulfide deposit, western Nakfa Terrane, Eritrea. Econ. Geol |  | 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) | | These VMS deposits represent basemetal ± gold–silver mineralization of the type commonly occurring in...the Shwas mineral district east of WBMD, and the Bisha (Barrie et al. 2007) and Asmara mineral districts...CRMs used were BHVO-2 (Hawaiian Basalt), GSP-2 (Silver Plume Granodiorite), G-2 (Granite), and RGM-1 (Glass...eastern margin of the Red Sea (Szymanski 2012). The region underwent a pre-rift Palaeozoic–Mesozoic cooling... INTERNATIONAL GEOLOGY REVIEW Quebec. III. The Ansil mine: Canadian Journal of Earth Science, v. 28, p. 1699–1730 |  | | Journal (article/letter/editorial) | | is absent. Keywords Golden Grove . Exploration . Silver halides . Supergene weathering . Western Australia...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 |  | | 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...Group Belousov Kunduzdy Caribou Uzelg'a La Zarza Bisha Novo-Leninogorsk Horne - No. 5 Zone Kozmuran Jerome-United...Iberian Pyrite Belt (Spain-Portugal) Augaro-Bisha (Eritrea) Rudny Altai (Kazakhstan) Abitibi, Noranda |  | | Book | | original volcanic chain, which ran partly where Bisha and Taif now stand, had been unroofed and worn down...parts remaining as dry land were the northwest, the region around Tabuk and perhaps some ground in the southwest...marine sedimentary rock. T 28 from the polar region and into warmer latitudes. The glaciers retreated...typical of the sedimentary strata in Central Pond Region. *7 4 yA * 7 ee poet*t! 262%" s* e** i a rr...Henceforward central and western Arabia were to be a region of erosion and denudation, of terrestrial sediments |  | | 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 |  | Smith, C.W., Waters, B.C., Naqvi, M., Worl, R.G., Helaby, A.M., Flanigan, V.J., Sadek, H.S., Samater, R.M. (1983) Geological and geochemical studies in the Wadi Bidah District, Kingdom of Saudi Arabia. Open-File Report Vol. 1983 (83-672) US Geological Survey doi:10.3133/ofr83672 | Report (issue) | | THE B-24 ANOMALY AREA, KHAYAL AL MASNA'AH ANCIENT MINE................................. Geology..........PART OF THE B-24 ANOMALY AREA, MAHAWIYAH ANCIENT MINE.......................................... Geology..................... 62 63 63 64 MULHAL ANCIENT MINE..................................... 64 Geology...of airborne electromagnetic anomalies and ancient mine workings. ....... 4 Map of the northern part of...part of the B-24 anomaly area, Mahawiyah ancient mine. .................................... 53 Page |  | | Journal (issue) | | always fgured it was just likker talk." "Tom had a mine he called the 'Dark Secret'," put in Fred Green...wall to wall. This was Tule Canyon. Here were old mine workings without end — mountainous piles of tailings...blown there by the Indian artifacts found in ancient mine workings at Tule canyon. The tools, evidently used...old-time friends, and other days, When eyes of love in mine did gleam. Within the firelight's ruddy cheer. The...forgotten French miners who long ago worked lead-silver deposits near the Colorado. On this trip we found |  | | Journal (issue) | | INNOVATOR 12 Sustainable social transitioning at mine closure starts with a paradigm shift 28 Staying...STORY With such a strong presence in the DRC, the region remains a top priority for the company, where in...Stubbs reveals. anchoring itself properly in the region, which it did The work Axis House is currently...mining activity on its previously dormant Mutoshi mine. In doing so, the company has tapped into a resource...the purchase of cobalt hydroxide from its Etoile mine and state-of-the-art Etoile processing facility |  | | Report (issue) | | St. Andre, maps, bibliog. TS, RT, S, D, Cl, WR. Eritrea, Physical features and mineral resources, 1942...L, S, CM, WR. Rome region, Terrain intelligence, 1943. TS. Po Valley region, Terrain intelligence...MR. TS, V, D, WR, Spp, SES 32. Aralo-Caspian Region, Terrain intelligence, 1942, 23 p., maps, bibliog...R, SW, V, R, AF, CM, S, RT, Cl. SES 75. Naples Region, Terrain intelligence, 1943, 55 p., ill us., maps...MR. SES 137a. Southwestern Formosa, Tinan-Shinei Region, Terrain intelligence, 1944, 128 p., illus., maps |  | | Report (issue) | | Salt Sand and Gravel Scandium Selenium Silicon Silver Soda Ash Stone Strontium Sulfur Talc Tantalum Tellurium............................................. 148 Silver .................................................DIAMOND (dust, grit, and powder) CHROMIUM PLATINUM SILVER ALUMINUM NICKEL TITANIUM (sponge) GERMANIUM IODINE...mineral commodities. The estimated value of U.S. metal mine production in 2017 was $26.3 billion (table 1),...Principal contributors to the total value of metal mine production in 2017 were gold (38%), copper (30%) |  | | Book (edition) | | the mineral industry and human consequences 11.6.1 Mine waste catastrophe 11.6.2 Mineral process plant failure...Ag Al As At Au B Bi Br C Ca Cd Ce Cl Co Cr Cu Silver Aluminium Arsenic Astatine Gold Boron Bismuth Bromine...Minerals Native element Copper (Cu), gold (Au), silver (Ag), platinum (Pt), palladium (Pd), antimony (Sb)...tailing in the future. The tailing of Kolar gold mine, India, historically stored at tailing dam, is being...octahedral Lead-gray/ shining Metallic Steel gray to silver-white/ grayish black Metallic Arsenopyrite, FeAsS |  | | 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...important roles in the large scale regional gold, silver and polymetallic mineralization in this area; among...evolution process of regional structures. This region is located within the southeastern margin of the |  | | Book (edition) | | Sp Sphalerite Metals/Semimetals/Nonmetals Ag Silver Al Aluminium As Arsenic At Astatine Au Gold B boron...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 specific gravity occurs |
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