 | Vasiliev, V. I., Borisenko, A. S., Mortsev, N. K., Khoa, C. C., Fyong, N. T. (2011) Jonassonite (AuBi5S4) from the Dakripen gold deposit in Vietnam. Geology of Ore Deposits, 53 (7) 614-619 doi:10.1134/s107570151107021x | Journal (article/letter/editorial) | | Spain (Cepedal et al., 2006), and the Viceroy Mine in Zimbabwe (Oberthür and Weisser, 2008). Hence, the finding...and (4) the late quartz–carbonate stage (quartz, ankerite, cal cite, sericite, and pyrite), which is related...or more determinations. 18 14.21 Viceroy Mine, Zimbabwe 13 Dakripen, Vietnam 14.43 16.59 9 Highis...Soeda, A., Unnamed Au–Bi Sulfide from the Tsugahira Mine, Southern Kyushu, SW Japan, Neues Jb. Miner. Monatsh...Assemblages at the Viceroy Mine, Harare–Bin dura–Shamva Greenstone Belt, Zimbabwe, Mineral. Mag., 2008, vol |  | Gebre-Mariam, M., Groves, D. I., McNaughton, N. J., Mikucki, E. J., Vearncombe, J. R. (1993) Archaean Au−Ag mineralisation at Racetrack, near Kalgoorlie, Western Australia: a high crustal-level expression of the Archaean composite lode-gold system. Mineralium Deposita, 28 (6) 375-387 doi:10.1007/bf02431597 | Journal (article/letter/editorial) | | Porphyritic basalt ~ Flow basalt / Fault [~ ~ Gold mine zopo~ z~oo~ / >~+++++iti~ ~ Andesite '~ ...a e r o m a g n e t i c data. Mine geology and structure In the mine environment, the stratigraphy is...with a change in reef style. For example, in the central part of the open pit a 060~ ~ NW fault zone changes...zones, oriented 320-330~ ~ W, are common in the mine environment and, in places, have displaced the ore...microcrystalline quartz, fine grained sericite, paragonite, ankerite and calcite. Leucoxene after original ilmenite |  | | Journal (article/letter/editorial) | | Main Sulfide Zone at Unki Mine, Shurugwi Subchamber of the Great Dyke, Zimbabwe: Evidence from Petrography...element (PGE) occurrence in the Great Dyke of Zimbabwe, the Main Sulfide Zone (MSZ), is a tabular stratabound...silicate composition study across the MSZ at Unki Mine in the Shurugwi Subchamber was conducted to help...the mineralization. The PGE-enriched zone at Unki Mine is a ~10 m thick package of rocks ranging from gabbronorites...of sulfide mineralization likely occurred at Unki Mine with primary sulfides occurring in association with |  | Bi, Shi-Jian, Li, Jian-Wei, Zhou, Mei-Fu, Li, Zhan-Ke (2011) Gold distribution in As-deficient pyrite and telluride mineralogy of the Yangzhaiyu gold deposit, Xiaoqinling district, southern North China craton. Mineralium Deposita, 46 (8) 925-941 doi:10.1007/s00126-011-0359-2 | Journal (article/letter/editorial) | | mineralogy of the Yangzhaiyu gold deposit, Xiaoqinling district, southern North China craton Shi-Jian Bi & Jian-Wei...Mesozoic magmatic rocks widespread in the Xiaoqinling district and other parts of the southern North China craton...(Shackleton et al. 2003), the Commoner Mine and Viceroy Mine in Zimbabwe (Twemlow 1984; Oberthüt and Weiser...Weiser 2008), and the Maldon gold deposit in the Central Victorian gold province, Australia (Ciobanu et al...for gold mineralization. The Xiaoqinling gold district in the southern North China craton has been the |  | Fougerouse, Denis, Micklethwaite, Steven, Tomkins, Andrew G., Mei, Yuan, Kilburn, Matt, Guagliardo, Paul, Fisher, Louise A., Halfpenny, Angela, Gee, Mary, Paterson, David, Howard, Daryl L. (2016) Gold remobilisation and formation of high grade ore shoots driven by dissolution-reprecipitation replacement and Ni substitution into auriferous arsenopyrite. Geochimica et Cosmochimica Acta, 178. 143-159 doi:10.1016/j.gca.2016.01.040 | Journal (article/letter/editorial) | | This process was facilitated by precipitation of ankerite, which removed CO2 from the fluid, increasing the...underground mineralised exposures throughout the Obuasi mine in order to provide a representative suite of samples...phyllites composed of micas, quartz, carbonates (ankerite and siderite), chlorites, rutile and graphite...mineralisation includes (Fougerouse et al., 2015) quartz-ankerite strain shadows around the arsenopyrites that are...matrix is composed of quartz, muscovite, chlorite, ankerite and siderite. The sulphides form aggregates of |  | | Journal (article/letter/editorial) | | Bahia, has been a very important gold-producing district in northeast Brazil since 1980. This highly folded...Carbonatization occurs as finely disseminated ankerite grains or ankerite veinlets disposed along the foliation...consist of massive milky quartz and minor amounts of ankerite, albite, and sulfides. The veins commonly exhibit...veins. Gold mineralization also occurs in quartz–ankerite breccias and stockworks hosted by sheared and...development of pressure shadows filled with quartz, ankerite, and chlorite. These relationships indicate that |  | Ciobanu, Cristiana L., Birch, William D., Cook, Nigel J., Pring, Allan, Grundler, Pascal V. (2010) Petrogenetic significance of Au–Bi–Te–S associations: The example of Maldon, Central Victorian gold province, Australia. Lithos, 116 (1) 1-17 doi:10.1016/j.lithos.2009.12.004 | Journal (article/letter/editorial) | | Au–Bi–Te–S associations: The example of Maldon, Central Victorian gold province, Australia Cristiana L...orogenic gold systems (Viceroy Mine, Harare–Bindura–Shamva greenstone belt, Zimbabwe; Oberthür and Weiser, 2008)...Maldon deposit Gold was first found in the Maldon district (then known as Tarrengower), about 135 km northwest...medium-sized deposits within the central Bendigo Zone of the Central Victorian gold province (Philips...and the Parkins reef, containing the North British Mine, at the southern end of the field (Fig. 2). By 1926 |  | | Journal (article/letter/editorial) | | terranes (Cassidy et al. 2006): Narryer, South West, central Youanmi, Kalgoorlie, Kurnalpi, and Burtville. The...proximal alteration. Carbonate minerals are mainly ankerite, with traces of Fe-dolomite, and rare calcite...sericite-pyrite veins are the same as those of the quartz-ankerite-pyrite-albite veins (Fig. 9), which suggests that...Greece Fiji Golden Quadrilateral, Romania Baguio district, Philippines Age 125.3∼116.6 Ma ∼30 to ∼28Ma...Viceroy Mine Harare-Bindura-Shamva greenstone belt, Zimbabwe Mildlands greenstone belt, Zimbabwe Archean |  | Klein, Evandro L., Harris, Chris, Renac, Christophe, Giret, André, Moura, Candido A. V., Fuzikawa, Kazuo (2006) Fluid inclusion and stable isotope (O, H, C, and S) constraints on the genesis of the Serrinha gold deposit, Gurupi Belt, northern Brazil. Mineralium Deposita, 41 (2) 160-178 doi:10.1007/s00126-006-0050-1 | Journal (article/letter/editorial) | | rocks that underwent Fig. 2 Geological map of the central portion of the Gurupi belt in the Serrinha area...phases also differs in the two levels, calcite and ankerite in the upper level and calcite and dolomite in...% of the veinlets. In general, the calcite to ankerite ratio is 4:1 Fig. 5 Photomicrographs showing...Calcite was reacted at 25°C (McRea 1950), whereas ankerite and dolomite were reacted at 50°C (Al-Assam et...O’Neil 1977), 1.01065 for dolomite, and 1.01057 for ankerite (Rosenbaum and Sheppard 1986). For oxygen isotope |  | Sanislav, Ioan V., Kolling, Sergio L., Brayshaw, Mathew, Cook, Yvonne A., Dirks, Paul H.G.M., Blenkinsop, Thomas G., Mturi, Marwa I., Ruhega, Roger (2015) The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69. 1-16 doi:10.1016/j.oregeorev.2015.02.002 | Journal (article/letter/editorial) | | University, Townsville, 4011 QLD, Australia Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania School...the Dharwar Craton in India, and the Kaapvaal, Zimbabwe and Tanzania Cratons in Africa. Except for gold...directly south of Lake Victoria and forming the central northern part of the outer arc of the Sukumaland...the D6 shear zones. zone (Fig. 2; Iyoda Shear in mine terminology) cuts and displaces the entire ironstone...mineral association is quartz–calcite–dolomite/ankerite–hematite–pyrite–biotite. In diorite, biotite replacement |  | Kerr, Mitchell J., Hanley, Jacob J., Kontak, Daniel J., Morrison, Gordon G., Petrus, Joseph, Fayek, Mostafa, Zajacz, Zoltán (2018) Evidence of upgrading of gold tenor in an orogenic quartz-carbonate vein system by late magmatic-hydrothermal fluids at the Madrid Deposit, Hope Bay Greenstone Belt, Nunavut, Canada. Geochimica et Cosmochimica Acta, 241. 180-218 doi:10.1016/j.gca.2018.08.030 | Journal (article/letter/editorial) | | northern Canada, which lies in an emerging gold district that is known to have highly variable gold grades...et al., 2012). Throughout the HBGB, pervasive ankerite-ferroan dolomite-sericite-pyrite alteration assemblage...the veins have selvages of sericite-carbonate (ankerite, ferroan dolomite) and, where stockwork-type veins...strongly foliated alternating bands of quartz + ankerite + phyllosilicates (sericite ± chlorite) with ubiquitous...earlier alteration consists of sericite-carbonate (ankerite, magnesite, ferroan dolomite) assemblages with |  | | Journal (article/letter/editorial) | | Smithies et al., 2001), and from South Africa, Zimbabwe, and Canada (De Wit and Ashwal, 1997; Eriksson...Craton, the relatively young (<3.27 Ga) West and Central Pilbara GGT’s, and the older (<3.65 Ga) East Pilbara...the Middle Creek Zone. Sedimentologically, the central shaledominated has been first recognized as a turbidite...Sedimentological analysis of sedimentary sequences in the central parts of the corridor to establish basin fill trends...average of axial planar cleavage: 163◦ /84◦ ; Central Domain: bedding pattern deviates from other domains |  | | Journal (article/letter/editorial) | | mineralization in Egypt: A case study from the Um El Tuyor mine, south Eastern Desert Basem A. Zoheir Department...are mainly quartz–carbonate (quartz+Fe-dolomite/ankerite+muscovite/sericite+ sulfides ±gold/electrum) and...Bassyunni, 1968), including 2.4 t from the El Sid mine between 1944 and 1958 (Neubauer, 1962 and references...geological and Fig. 1. Geological map of the central part of the Allaqi-Heiani Suture (modified after...447 Fig. 2. Geologic map of the Um El Tuyor gold mine area (modified after original mapping by Zoheir, |  | | Report (volume) | | Blenkinsop examine Archaean deformation patterns in Zimbabwe and the adjacent Limpopo Belt and discuss the...Stratigraphic and tectono-stratigraphic problems in Zimbabwe and Western Australia are described in the next...gold mineralization in the Kadoma region of the Zimbabwe Midlands. Three papers describe the structures...and cross sections showing the evolution of the central Asian basins. This collection of papers therefore...larger than life, professors in geology, with a central role in guiding the future of research and geological |  | Groves, D.I, Goldfarb, R.J, Gebre-Mariam, M, Hagemann, S.G, Robert, F (1998) Orogenic gold deposits: A proposed classification in the context of their crustal distribution and relationship to other gold deposit types. Ore Geology Reviews, 13 (1) 7-27 doi:10.1016/s0169-1368(97)00012-7 | Journal (article/letter/editorial) | | Cambrian sedimentary rocks of the French Massif Central is the world’s largest producer of arsenic ŽGuen...crustal level. Most commonly, carbonates include ankerite, dolomite or calcite; sulfides include pyrite...al. Ž1991b., Miller et al. Ž1994. Willow Creek district, southcentral Alaska 66 Late Paleozoic 74–66...Scheiber Ž1996. Muruntau, Uzbekistan and adjacent central Asia deposits Late Carboniferous– Early Permian...Europe 340–310 ŽBohemia Massif.; 300"20 ŽMassif Central. Late Proterozoic– early Paleozoic 360–320 350–340 |  | | Report (issue) | | Bell Mine Belvidere Black Lake British Canadian Caley Carey/East Broughton Cana Brava Cassiar Mine Clinton...Courvan Mine Cranbourne Daffodil Eagle Gilmont Golden Age Jeffrey King-Beaver Mine Kudu Asbestos Mine Lake...Shihmien Steele Brook Tuolumne Windsor Woodsreef Mine Zindani -23- Country CNQU CNBC CNON URRS SAFR...other. j DEPOSITS Name Country Agassiz AT bi no Ankerite-Aunor-Delnite Arrowhead Ashley Bankfield-Tombill...Lake-Dickenson Carshaw-Tommy Burns Cathroy Larder Central Manitoba Central Patricia Cheminis-Fernland-Omega Chesterville |  | | Report (volume) | | size: an example from the Guanajuato mining district (Central Mexico) Fluid flow and fracture systems SANDERSON...COUPLES, G. D. Carboniferous basin evolution of central Ireland - simulation of structural controls on...regions of Central Iberia are outlined below to illustrate this approach. Quartz veins, Central Portugal...Esquisto Grauvaquico of the Castello Branco region of Central ROBERTS, S., SANDERSON, D. J. & GUMIEL, P. 1999...extraction of ore occurring only at the La Parilla mine [c. 6000 tonnes of Sn (0.2 wt%) and WO3 (0.05wt%)] |  | | Journal (article/letter/editorial) | | exposed within the Archean basement complex of north-central Sierra Leone ŽFig. 1a.. Together with other smaller...quartz, tourmaline, epidote, dolomite, calcite, ankerite and fluorite. Besides lodes and placer deposits...calculations d18 O Kerrich and Fyfe Ž1981. Hunt Mine, Kambalda, Australia Low salinity H 2 O–CO 2 XCO...of South Africa, Yellowknife, Canada and the Hunt Mine, Kambalda, Australia ŽTable 1.. Coupled with the...Yirisen and the occurrence of calcite, dolomite and ankerite as gangue minerals. The loss of CO 2 can be related |  | | Journal (article/letter/editorial) | | 3010, Australia 2 Phillipsgold Pty Ltd, PO Box 3, Central Park, Vic. 3145, Australia (neil@phillipsgold.com...1–2 km by 1–2 km by 1–20 m Barton Deeps at Jundee mine Deposit Ore shoot Several geographically related...near-constant in many gold systems. For example, at Hunt mine in the Kambalda–St Ives goldfield, an alteration...pyrrhotite as a product. chlorite þ epidote þ ankerite dolomite þ albite þ quartz ¼ amphibole þ plagioclase...ioclase–quartz with dolomite-production (i.e. ankerite) at the expense of calcite (Elmer et al., 2006; |  | Acosta-Gongora, P., Gleeson, S. A., Samson, I. M., Ootes, L., Corriveau, L. (2015) Gold Refining by Bismuth Melts in the Iron Oxide-Dominated NICO Au-Co-Bi ( Cu W) Deposit, NWT, Canada. Economic Geology, 110 (2) 291-314 doi:10.2113/econgeo.110.2.291 | Journal (article/letter/editorial) | | mineral deposits (e.g., NICO deposit; Tennant Creek district, Australia; Idaho cobalt belt, United States;...include deposits in the AuCu-Bi Tennant Creek district (Skirrow and Walshe, 2002), the Co-Cu-Au-Bi-Y-REE...1000 km Great Bear Lake Wopmay Orogen COPPER MINE HOMOCLINAL 116o Eldorado/Echo Bay/ El Bonanza...contains coarse-grained (0.5−5 cm) quartz-calcite-ankerite (±chalcopyrite-titanite-orthoclase). The latter...subsequent spatial association with Bi at the Viceroy mine was a result of the replacement of arsenides and |  | | Journal (article/letter/editorial) | | The Tarkwaian Group is mainly developed in the central parts of the volcanic belts and consists of conglomerates...to the non-mineralized Belt and Basin granitoids. Mine geology The granitoid-hosted gold deposits at Obuasi...The later NE-striking faults are mineralized at a mine scale (Ashanti Goldfields Company, personal communication)...enriched by the formation of carbonates (e.g. ankerite). CaO is depleted mainly due to alteration of...these fluids (Roedder, 1984). In the Ayankyerim Mine at Obuasi, the 3P fluid inclusions show Th(L) values |  | | Report (chapter) | | would be the collision between the Kapvaal and Zimbabwe cratons, where the Limpopo belt would resemble...rocks are white. (a) The Selukwe greenstone belt, Zimbabwe craton (modified after Stowe 1984). The structure...been described in the Selukwe greenstone belt in Zimbabwe (Fig. 4a), where, due the large amount of flattening...(de Wit 1982), and Selukwe greenstone belts in Zimbabwe (Fig 4a; Stowe 1984). The geological environment...isostatic readjustment between the Kaapval and Zimbabwe Archaean cratons (Coward & Fairhead 1980 ; de |  | | Journal (article/letter/editorial) | | bandediron-formation in the Fig Tree Group, Ngwenya Mine, Swaziland. Light gray, chert mesobands; dark gray...andMason(1970). Diamonddrilling at the Ngwenyairon ore mine in Swazilandhas further proved the presenceof the...OF SOUTHERN AFRICA 977 C. BOTHAVILLE -- B. CENTRAL ¾ v v ¾ K//ornmSer$ 9' RAND JOHANNESBURG...withcon•/omer•e • Iron-rtch sedimenory rocks DOMINIONREEF MINE. ßKLERKSDORP • • W•S.=Wesf Ron• C.8 = Con•ed...ones. Red chert mesobandsare prominentin the central part of the iron-formation(Fig. 15). A characteristic |  | | Book | | ........................ 7.2 Evolution of the Zimbabwe Craton..........................................the large layered maficultramafic Giles Complex, central Australia (Ballhaus and Glikson 1995; Glikson 1995)...Wyoming Craton and the Granite Mountain region of central Wyoming include outcrops of 3.4–3.2 Ga rocks (Mueller...Snowy Block, southwestern Montana and in south-central Wyoming (Chamberlain et al. 2003). Detrital zircons...north to the Great Falls tectonic zone and much of central and eastern Montana. 2.5 Itsaq Gneisses and Supracrustals |  | | Book | | ............... . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .............................Massive Sulfide Deposits of the BathurstNewcastle District, New Brunswick, Canada Discussion of Tectonic...Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform...Post-Metamorphic Quartz-Rich Vein Ores: The Sigma Mine, Quebec ................ . 4.5.5 Discussion and.............. The Chromite Deposits of Selukwe, Zimbabwe .............................. Discussion ... |
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