 | | 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 |  | | Journal (article/letter/editorial) | | copper-zinc-lead-gold; sedimentary exhalative (SEDEX) zinc-lead-silver; orogenic and intrusion-related gold; iron...iron oxide copper-gold (IOCG); banded iron formation (BIF); and Mississippi Valley-type (MVT) zinc-lead...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 |  | Zhao, Kai, Yao, Huazhou, Wang, Jianxiong, Ghebretnsae, Ghebsha Fitwi, Xiang, Wenshuai, Xiong, Yi-Qu (2019) Genesis of the Koka Gold Deposit in Northwest Eritrea, NE Africa: Constraints from Fluid Inclusions and CâHâOâS Isotopes. Minerals, 9 (4) 201 doi:10.3390/min9040201 | Journal (article/letter/editorial) | | minerals Article Genesis of the Koka Gold Deposit in Northwest Eritrea, NE Africa: Constraints from Fluid...2019; Published: 27 March 2019 Abstract: The Koka gold deposit is located in the Elababu shear zone between...Adobha Abiy terrane, NW Eritrea. Based on a paragenetic study, two main stages of gold mineralization were...in the Koka gold deposit: (1) an early stage of pyriteâchalcopyriteâ sphaleriteâgalenaâgoldâquartz vein;...those of orogenic gold deposits, suggesting that the Koka deposit might be an orogenic gold deposit related |  | | 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...volcanic-hosted massive sulphide (VHMS) copper-zinc-gold-silver, (4) sedimentary-exhalative (SEDEX) zinclead-silver...(5) orogenic and intrusion-related gold, (6) iron oxide-copper-gold (IOCG), (7) banded iron formation...nickel-cobalt-arsenic-silver-bismuth(-uranium), (12) epithermal gold-silver, (13) skarn and replacement tungsten, tin |  | | Journal (article/letter/editorial) | | 1080/00206814.2014.935964 Re-Os geochronology of gold mineralization in the Fawakhir area, Eastern Desert...report the ïŹrst Re-Os data on gold-associated arsenopyrite from mesothermal gold-quartz veins in the ancient...ancient Egyptian FawakhirâEl Sid gold mining district in the central Eastern Desert. This mining district...geographic map, as well as the oldest geologic and mine map. The FawakhirâEl Sid district is part of a regional...corridor (15 km wide) that hosts several other historic gold mines associated with left-lateral wrench structures |  | 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) | | Ohier depositâa newly discovered porphyry copperâgold system in the Neoproterozoic ArabianâNubian Shield...comprising magnetite-pyrite-chalcopyrite-bornite (±gold, silver and tellurides), and the recurrence of fertile...convergent plate setting all point to a porphyry copperâgold association, analogous to major porphyry CuâAuâMo...Sudan, namely orogenic gold mineralization that has supported extensive historical gold mining activity since...which is currently the source of the bulk of Sudanâs gold production (mainly through extensive artisanal mining; |  | | Journal (article/letter/editorial) | | (2002) reported the occurrence of several VMS and gold ores that bear some significant Ag concentrations...north, to Yemen, in the south (Fig. 1). The Zalm gold mine is the most prominent geologic landmark in the...geologic investigation of the ancient gold workings at the Zalm mine. Also, Jackson et al. (1963) studied...Bounny (1977) studied geology and gold mineralization at the Zalm mine during 4 exploration in the area...and Morfett (1983) investigated and explored for gold in the Zalm district. Sahl (1985) mapped the Zalim |  | | Journal (article/letter/editorial) | | AU, Ag, and Pb. In Katta district, base metal and gold mineralization have been recognized for quite some...Ethiopia. It is situated within the emerging mining region of the Arabianâ Nubian Shield (ANS) that extends...exploration programs since the nineteenth century. Gold mineralization was first discovered by a French...surface mining for gold in quartz veins within the quartzâsericite schists. The grades of gold were reported...oxidized zone and 5â8 g/t in the primary ore zone. The gold mineralization occurred in association with pyrite |  | | Journal (issue) | | HUDBAYâS SNOW LAKE STRATEGY SASKATCHEWAN BASE METALS & GOLD JUNE 2020 | www.canadianminingjournal.com | PM...âtemporary land useâ Alisha Hiyate T he ïŹeld 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...Oceana Gold and Rio Tinto. In March, the consortium released a report on the repurposing of mine sites |  | | Journal (article/letter/editorial) | | University, Zagazig, Egypt. 2 University of Bisha, Bisha, Kingdom of Saudi Arabia. 3 Department of Computer...yuan (RMB)] as well as coal, natural gas, copper, gold, silver, iron, and past oil prices (West Texas Intermediate...palladium, tin, aluminum, nickel, zinc, copper, gold, lead, platinum, and silver. Mo et al. (2018) investigated...oil and both gold and USD; then they recorded that the relationship between oil and gold is always positive...study the relationship between crude oil prices and gold; their results showed a positive relationship between |  | 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) | | well-exposed, stratabound, volcanogenic copper and gold-bearing massive sulphide deposits, and associated...(Figure 1). These VMS deposits represent basemetal ± goldâsilver mineralization of the type commonly occurring...arcâbackarc basin rocks also host: (1) epithermal gold deposits; (2) Fe(oxide)âAu deposits; (3) NiâCo and...the Shwas mineral district east of WBMD, and the Bisha (Barrie et al. 2007) and Asmara mineral districts...deposits, enriched in supergene gold, have previously been worked as gold mines at Al Hajar and are presently |  | | Report (issue) | | ................. 6 6 6 6 6 6 6 7 7 7 7 7 7 7 GOLD MINERALIZATION....................................Panned concentrates.......................... 14 Gold and arsenic.......................... 14 Tellurium...Minus-80-mesh fractions samples.............. 15 Gold and arsenic.......................... 15 Tellurium...panned-cojicentrate sample sites and areas anomalous in gold................ 17 Figure 5. Map showing panned-concentrate...minus-80-mesh sample sites and areas anomalous in gold...................... 25 Page Figure and Figure |  | | Journal (issue) | | .Many halftones, maps. 530 pp. $4.50 XI APACHE GOLD AND YAQUI SILVER, J Gl G2 CALIFORNIA, A Guide... 458 pages $4.50 Frank Dobie. Fascinating lost mine and buried treasure stories by a master story teller...Bailey. This is a favorite of lost mine books. Pegleg Smith's Gold, ghosts of Vallecito, Lost Ship of... Lost Pegleg, Lost Dutch Oven and 20 other lost mine legends of California, Nevada. Arizona and Texas...Albuquerque. New MexSeptember 30 â Julian's Apple Day. Gold Rush Days relived, Julian. California. Volume 14 |  | | Journal (article/letter/editorial) | | amphibolite-facies metamorphism experienced in this region as a result of the 1.3â1.0 Ga Namaqua Orogeny and...Corporation until 1984 (âAâ boreholes). In 1991 Gold Field's Mining and Development were responsible...sulïŹde phases as revealed by EPMA. 5. Discussion 5.1. Gold and Ag The precious metals Au and Ag are unequally...2007. The Bisha volcanic-associated massive sulïŹde deposit, western Nakfa Terrane, Eritrea. Econ. Geol...determination of the platinum-group elements and gold by LA-ICP-MS. Geostand. Geoanal. Res. 37, 51â64 |  | | Journal (article/letter/editorial) | | 46:509â539 DOI 10.1007/s00126-010-0300-0 ARTICLE The gold content of volcanogenic massive sulfide deposits...contain variable amounts of gold, both in terms of average grade and total gold content, with some VMS deposits...hosting world-class gold mines with more than 100 t Au. Previous studies have identified gold-rich VMS as having...having an average gold grade, expressed in g/t, exceeding the total abundance of base metals, expressed...This paper presents a more extensive analysis of gold grades and tonnages of 513 VMS deposits worldwide |  | | Journal (article/letter/editorial) | | org/10.1007/s00126-019-00868-6 ARTICLE Supergene gold in silcrete as a vector to the Scuddles volcanic...weathering under variable timing and climatic conditions. Gold grains are pure, nanocrystalline (up to 10 nm) and...Ag, I, Br, Cl, Sb, Sn, Bi, Hg, Mo, W, Te, and Ge. Gold and Ag in the supergene weathering profile were...may have taken place in response to a rise in pH. Gold was likely remobilized with kaolinite from the surface...(1â5 g/t) deposits (Butt 1998; Anand et al. 2017). Gold particles of high fineness have been identified |  | | Journal (article/letter/editorial) | | extremity of the Wadi one reaches the district of Bisha, and three days' journey to the southward of that...junction of the three great wadis of Tathlith, Bisha and Ranya to the oasis of the Wadi, and from somewhat...local information, the three wadis of Tathlith, Bisha, and Ranya discharge their floods. From the Hajla...been able to attend. Miss Gertrude Bell, our latest Gold Medallist, was recently in England, but I am sorry |  | | 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 |  | Bierlein, Frank P., Potma, Warren, Cernuschi, Federico, Brauhart, Carl, Robinson, Jamie, Bargmann, Chris J., Bullen, Warwick, Henriquez, Jose F., Davies, Ian, Kennedy, Allen (2020) New Insights into the Evolution and Age of the Neoproterozoic Jebel Ohier Porphyry Copper Deposit, Red Sea Hills, Northeastern Sudan. Economic Geology, 115 (1) 1-31 doi:10.5382/econgeo.4691 | Journal (article/letter/editorial) | | volcanogenic massive sulfide (VMS) and orogenic gold deposits (e.g., Barrie et al., 2016). The ca. 850...disregarded as a potential target for porphyry copper (-gold) exploration. The recent discovery of the Jebel...(epithermal, skarn, iron oxide copper-gold, intrusion-related gold systems, etc.) may, by implication,...Sudan highway is via an unpaved road to the Ariab mine and ~150 km of dirt tracks over open ground. An...volcanogenic massive sulfide (VMS) and gold deposits. 1 = Ariab/Hassai, 2 = Bisha, 3 = Bulghah, 4 = Sukurai, 5 |  | | Journal (article/letter/editorial) | | Accepted Manuscript Orogenic gold in the Egyptian Eastern Desert: Widespread gold mineralization in the late...Goldfarb, et al., Orogenic gold in the Egyptian Eastern Desert: Widespread gold mineralization in the late...Neoproterozoic orogeny T Orogenic gold in the Egyptian Eastern Desert: Widespread gold mineralization in the 2Institute...(ANS) is a rapidly emerging world-class province for gold resources mainly in structurally-controlled quartz±carbonate...classified as late Neoproterozoic orogenic gold deposits. Gold has been mined in the Eastern Desert T |  | | Journal (article/letter/editorial) | | or Red Sea slope. The greater part of this last region had been barred as a Holy Land to European explorers...Aden fighting took place, first and last, in a region all too familiar. It is true that, through certain...profane eyes; and that there is neither a hidden region of fertility between South Nejd and the Gulf, nor...in Asir to the south it lies west of Taraba and Bisha, and that in the north it runs through the Kheibar...of place on our maps. Remember that until 1919 a region so familiar to Europeans as the Aleppo district |  | | Journal (issue) | | September 2014 www.miningglobal.com T OP DIAM 10 O MINE ND S ArcelorMittal Canada World Class Performance...Outsourcing The US is Now the Preferred Destination for Gold Mining Companies editorâs comment in this issue...iron ore cannot be educated into goldâ â Mark Twain The price of gold is unanimous around the world but...edition of Mining Global, we discuss the future of gold mining around the world and how the United States...top of the list as the preferred destination for gold mining companies. Also this month: we take a look |  | | Journal (article/letter/editorial) | | iEtheospondyli 30+ Afghani stan 85,87 et Stqq., 235 African Gold 213 ligates 209 Age of Basic Dyk es 152 " " Morte...Algon kian Allen, H. A. Allophone Alluvial fan " Gold "plains Alluvium Alps Alstone, F . J. Alte Case...39:> 20 l~ Birdlip Birds Birmensdorfersch ich ten Bisha rn Bishop St ortford Gap Bix" 75 23 8 48. 49...210 Carrickfergus Cars tone 2, 196 Carthaginian gold 223 Cartrnel 283 Cassidaria 2I 3 Castlebar Hill...ersaz ione IJ Cookh am 23 " Dean I Cook' s K itchen Mine C oorna ra -Swa my , A. K. ..âą 355, HO 302: Coom |  | | 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...processes, it has achieved significant success with its gold reagent range and improved flocculants and coagulants...Stubbs reveals. anchoring itself properly in the region, which it did The work Axis House is currently...The companyâs gold reagent range, 4 Gold, was successfully trialled and applied at a gold operation in |  | 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 |
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