 | | Report (chapter) | | control and ore reserve estimation at Renco gold mine, Zimbabwe: past, present and future M. G. A R M...Road, Bristol BS8 IRJ, UK 2 Renco Mine, Pvt Bag 3005, Nr Masvingo, Zimbabwe Abstract: Modern gold mining...mining activity at Renco Mine in southern Zimbabwe started in 1936. Since then a series of different companies...companies have held the option to mine. The current owners, Rio Tinto Zimbabwe, took it over in 1973. Accurate...production data. Renco is situated in southern Zimbabwe, 70 miles southeast of Masvingo, within the Limpopo |  | | Journal (article/letter/editorial) | | Metamorphic ShearZonesof the RencoMine, Southern Zimbabwe ALEXANDER F. M. KISTERS, âą JOCHEN KOLB, ANDF...Germany Abstract TheRencogoldminein southern Zimbabwe istheonlyknownmajorgolddeposit in thegranulite...associated withsulfide mineralization, including pyrrhotite asthedominant sulfide withminoramounts of chalcopyrite...havegivenrise hosted outside the realms of the Zimbabwe eraton. The Reneo to a debateabouttheconditions...thus,timingof thegold mineis located in southern Zimbabwe, approximately 75 km mineralization(B6hmkeand |  | | Journal (article/letter/editorial) | | Zone, Limpopo Belt, Zimbabwe, and relevance to gold mineralization at Renco mine Tom G. Blenkinsop Department...Geology, University of Zimbabwe, P.O. Box MP 167, Mount Pleasant, Harare, Zimbabwe Present Address: School...uni-mainz.de V. Chiwara Rio Tinto, Zimbabwe, PO Box AY 266, Harare, Zimbabwe e-mail: Victor.Chiwara@riotinto...field mapping and geochronological studies in the Renco mine area of the Northern Marginal Zone of the Limpopo...Archaean. Amphibolite facies gold mineralization at Renco mine probably occurred at this time, followed by Palaeoproterozoic |  | | Journal (article/letter/editorial) | | purposely lacking, as all information on regional and mine geology, host rock and ore sample descriptions,...Brazil [10â13]: Ajjanahalli, India [14,15]; Renco, Zimbabwe [16â20]; Hutti [21â27], Hira Buddini [28,29]...and Lega Dembi are situated in greenstone belts, Renco formed in a granulite facies mobile belt, Pilgrimâs...Geologic Settings New Consort CuiabĂĄ Ajjannahalli Renco Hutti Hira Buddini Pilgrimâs Rest Lega Dembi Navachab...metasedimentary rocks and banded iron formation. Renco is an example of an unusual setting in that it is |  | | Journal (article/letter/editorial) | | mid-crustal auriferous mylonites of the Renco mine, southern Zimbabwe Received: 27 October 1998 / Accepted:...constraints on auriferous shear zones of the Renco mine in the Northern Marginal Zone of the late-Archaean...late-Archaean, granulite-facies Limpopo Belt in southern Zimbabwe indicate that deformation and associated mineralization...medium-grade granite-greenstone terrains of the Zimbabwe craton. Mineral assemblages indicate that the...overthrusting of the Northern Marginal Zone onto the Zimbabwe craton, and coeval amphibolite-facies hydration |  | | Journal (article/letter/editorial) | | Mineralization and Tectonics at the Renco Mine (NorthernMarginalZone,LimpopoBelt,Zimbabwe) T. G. BLENKINSOP Department...Geology, University of Zimbabwe, P.O.BoxMP167,MountPleasant, Harare,Zimbabwe AND R. FREI GruppeIsotopengeologie...greenschist faciesbythistime.Themajorgold-bearing pyrrhotite-ehaleopyrite _ bismuth mineralization occurred...mostof the greenstone-associated deposits of the Zimbabwe eraton,whichareknownor inferredto be LateAreheart...Limpopobeltin andgenesis of thisgoldmineralization. Zimbabwe, in contrast withthemanygolddeposits associated |  | | Journal (article/letter/editorial) | | inclusion record of the hypozonal orogenic Renco gold deposit (Zimbabwe) during the retrograde PâT evolution...Springer-Verlag 2002 Abstract The hypozonal Renco gold deposit in Zimbabwe is hosted by a shear zone system cutting...inclusions in the mineralized lithologies of the Renco gold mine are dominated by carbonic inclusions of highly...ore ïŹuid. All the aqueous inclusions observed at Renco can be attributed to a late, retrograde greenschist-facies...investigations of CO2-rich inclusions from the Renco gold deposit in the granulitefacies Northern Marginal |  | | Journal (article/letter/editorial) | | ornetite: University ofToronto Rencogoldmine,southern Zimbabwe: TerraNova,Abstract supplement Studies, Geological...goldmineralizationat Rencomine,Zimbabwe: Unpublished Ph.D.dissertation, London, Zimbabwe: Geofluids II '97 Symposium...TECTONICS AT THE RENCO MINE (NORTHERN MARGINAL ZONE, LIMPOPO BELT, ZIMBABWE)--A REPLY TOM G. BLENKINSOP...Geology, University of Zimbabwe, P.O.BoxMP167,MountPleasant, Harare,Zimbabwe AND ROBERT FREI Geologisk...compatible with a single mineralization such as Renco is often contentious and has eventof LateArcheau |  | | Journal (article/letter/editorial) | | (NORTHERN MARGINAL ZONE, LIMPOPO BELT, ZIMBABWE)--A THE RENCO MINE DISCUSSION ALEXANDER F. M. KISTERS...waspromoted bytransiently suprazone,Limpopobelt,Zimbabwe)" in whichtheauthors pres- lithostatie fluidpressures...byBlenkinsop andFreitoindicate mineralizationthe Renco mine which show east-northeast-west-southwest temperatures...exclusively associated withthehigh-temperature pyrrhotite-Tabeart,1989).Oneof thepyroxenite dikesexposed...i-m-widesteepreef.Reefdevelopment mineralassemblage at Renco. ischaracterized bytheextensive dynamic recrystallization |  | | Journal (article/letter/editorial) | | where arsenopyrite and pyrite react to form pyrrhotite and an AsâS melt. The melt forming between 500°...arsĂ©nopyrite + pyrite rĂ©agissent pour former pyrrhotite et un liquide AsâS. Entre 500° et 600°C, dĂ©pendant...orebodies that also contain minor amounts of pyrrhotite and chalcopyrite. The orebodies, hosted in granulite-grade...interfacial angles of galena, chalcopyrite, and pyrrhotite against sphalerite. Galena forms 3/28/02, 16:18...Cp: chalcopyrite, Ga: galena, Gar: garnet, Po: pyrrhotite, Sph: sphalerite. 001 40#1-fĂ©v-02-2328-01 4 |  | Doyle, M. G., Fletcher, I. R., Foster, J., Large, R. R., Mathur, R., McNaughton, N. J., Meffre, S., Muhling, J. R., Phillips, D., Rasmussen, B. (2015) Geochronological Constraints on the Tropicana Gold Deposit and Albany-Fraser Orogen, Western Australia. Economic Geology, 110 (2) 355-386 doi:10.2113/econgeo.110.2.355 | Journal (article/letter/editorial) | | Australia Abstract Gold mineralization at the Tropicana mine occurs within the Plumridge terrane along the eastern...the Dharwar craton, India, and the Limpopo belt, Zimbabwe, economic gold mineralization at Tropicana postdates...studied examples include Hemlo in Canada, Renco in Zimbabwe, Hutti in India, Challenger in South Australia...been used in support of a retrograde timing of the Renco deposit (e.g., Blenkinsop and Frei, 1996; Kisters...Kalgoorlie Kurnalpi Terrane Ea Kanowna Belle Mine 120° Gu nb ar re lF YILGARN CRATON 30° 1000 |  | | Journal (article/letter/editorial) | | complex metamorphic assemblages occurs around the mine, compared to the assemblages developed regionally;...no evidence of higher metamorphic grades at the mine, nor that this might have been the prime control...lOOt Au), the Renco mine in the Rhodesian Craton of Zimbabwe (c. 30t Au), and the Consort mine in South Africa...(EGP) Eastern Gold Province, (K) Kalgoorlie gold mine. Five drill hole sections illustrate representative...desulphidation. Sulphur isotope values of pyrite and pyrrhotite from the biotite and muscovite schists (Table |  | | Journal (article/letter/editorial) | | sericite alteration and ore minerals comprising pyrrhotite, chalcopyrite, sphalerite, ilmenite/rutile and...quartz veins are mineralized, comprising gold, pyrrhotite, sphalerite, arsenopyrite, and pyrite (Kolb et...including (1) arsenopyrite, pyrite, gold; (2) pyrrhotite, chalcopyrite, sphalerite, ilmenite/rutile, gold;...No paragenetical assemblage of arsenopyrite, pyrrhotite and pyrite, which is critical for thermometrical...authors would like to thank the mine management of the Hutti Gold Mine Ltd. for the permission to publish |  | Neumaryr, P., Groves, D. I., Ridley, J. R., Koning, C. D. (1993) Syn-amphibolite facies archaean lode gold mineralisation in the Mt. York District, Pilbara Block, Western Australia. Mineralium Deposita, 28 (6) 457-468 doi:10.1007/bf02431602 | Journal (article/letter/editorial) | | Archaean lode gold mineralisation in the Mt. York District, Pilbara Block, Western Australia P. Neumayr ~...The Archaean lode gold deposits in the Mt. York District, Pilbara Block, Western Australia are hosted in...breccias comprising quartz clasts in a quartz-pyrrhotite matrix, and quartz-amphibole veins, with 1611ingite...Kalgoorlie at higher crustal levels. The Mt. York District is located in the Archaean Pilgangoora greenstone...Hill/Breccia Hill and Zakanaka prospects in this district. Gold was first discovered in the Pilbara Craton |  | | Journal (article/letter/editorial) | | and other silicates. Textures developed between pyrrhotite, löllingite, arsenopyrite, and gold; the lack...inclusions of gold with coexisting arsenopyrite, pyrrhotite, and bismuth are hosted within peak metamorphic...type. Other deposits around the world, such as Renco and Griffins Find, are hosted in granulite facies...muscovite; Opx, orthopyroxine; Pl, plagioclase; Po, pyrrhotite; and Qtz, quartz. Regional Geology The Gawler...distribution In the gold- and arsenic-rich zones, pyrrhotite (typically with chalcopyrite and rarely pentlandite) |  | Smit, C.A., Van Reenen, D.D., McCourt, S., Huizenga, J.M., Belyanin, G., Vafeas, N.A. (2019) Hypozonal orogenic gold mineralization in the Giyani Goldfield, Northern Kaapvaal Craton/Limpopo Complex. South African Journal of Geology, 122 (4) 455-488 doi:10.25131/sajg.122.0037 | Journal (article/letter/editorial) | | New Consort in the Barberton greenstone belt and Renco in the Northern Marginal Zone (NMZ) of the Limpopo...that of Renco gold mine in the granulite facies terrane of the NMZ of the LC in Zimbabwe. The Renco deposit...against medium-grade granite-greenstone belts of the Zimbabwe Carton (ZC) to the north (Figure 5) (e.g., Kolb...2000, 2015; Blenkinsop, 2011). The ore deposit at Renco was formed at a minimum temperature of 600°C and...trending Birthday section hosts the Birthday gold mine as well as several gold prospects such as Boltmanâs |  | | Journal (article/letter/editorial) | | gyof Western Australia; and Renco, Zimbabwe. For these the Calumet mine (Goranson, 1925; Moorhouse, depositsthere...Varndell, 1986), or in association transitionzone (mine series,Fig. 2) betweenfootwall with (Walfordet al...whichwasalreadyin productionat that time separatedfrom the mine seriesby a fault or shear (Gauthieret al., 1985;...metamorphism followedby de- Hangingwallamphibolites Mine series & &gneisses limit of calcite-diopside alteration...quartz-richrock (e.g., trum are disseminated with gahnite,pyrrhotite,py- with garnet,phlogopite,and orthoamphibole |  | | Journal (article/letter/editorial) | | Pyrite, pyrrhotite arsenopyrite 320-420~ Pyrrhotite, arsenopyrite, (pyrite) 400-500~ Pyrrhotite, arsenopyrite...arsenopyrite, (loellingite) 500 600~ Pyrrhotite, arsenopyrite, loellingite 600-700~ Biotite-ankerite...limits for alteration chlorite at the Harbour Lights mine, Yilgarn Block (Skwarnecki 1988). The ticked line...n i v a r i a n t reactions for the Victory gold mine are: 1. Ms+Dol=Bt+Chl+Cal; 2. B t + C h l + D o...giving biotite-ankerite - alteration at the Hunt mine, Kambalda as between 5.8 to 6.8; virtually identical |  | Zhao, Hesen, Wang, Qingfei, Groves, David I., Deng, Jun (2019) A rare Phanerozoic amphibolite-hosted gold deposit at Danba, Yangtze Craton, China: significance to fluid and metal sources for orogenic gold systems. Mineralium Deposita, 54 (1) 133-152 doi:10.1007/s00126-018-0845-x | Journal (article/letter/editorial) | | biotite-amphibole-plagioclase and ore assemblages dominated by pyrrhotite, but with a strong association between gold and...large granite intrusion is more than 10 km from the mine (ESM Fig. 1). The ore bodies had been mined to a...magnetotelluric sounding used during exploration at the mine (Fan et al. 2013). Metamorphic petrography Metamorphic...ESM Fig. 4b). Adjacent to this silicification, pyrrhotite, which cuts the schistosity, becomes more abundant...depth of 300 to 600 m in different sectors of the mine. Exploration data show that the Major Lode has a |  | | Corporate Document | | SOUTH AFRICA 10.1 Western Deeps 10.2 Fairwiew 10.3 Renco 11. CANADA 11.1 Wawa AUSTRALIA 12 Ultramafic host...sphalerite geobarometry, and the dominance of pyrrhotite and calcite instead of pyrite and dolomite in...characterised by the formation of biotite, tourmaline, pyrrhotite and arsenopyrite. Hand specimen description Sample...feldspar - biotite - albite - muscovite - calcite(?) pyrrhotite + possibly arsenopyrite, tourmaline, chlorite...Sample descriptions by Pasi Eilu 1 epidote - pyrrhotite. Other ore minerals present are: pyrite, arsenopyrite |  | | Journal (article/letter/editorial) | | constrain the P-T range of pyrite breakdown to pyrrhotite (which liberates sulfur) in common metamorphic...largely derived from breakdown of pyrite (FeS2) to pyrrhotite (Fe1xS) during regional metamorphism, which...others (e.g., complete conversion of pyrite to pyrrhotite in a 1 Mt massive sulïŹde deposit with 20% pyrite...are also favourable for break down of pyrite to pyrrhotite. Pyrite is a widespread trace component of many...prograde metamorphism pyrite breaks down to form pyrrhotite and in doing so, liberates sulfur (see Fig. 6 |  | Bineli Betsi, Thierry, Mokane, Lebogang, McFarlane, Chris, Phili, Kelebogile, Kelepile, Tebogo (2020) Multistage gold mineralization events in the Archean Tati greenstone Belt, northeast Botswana: Constraints from integrative white mica Ar/Ar, garnet U-Pb and sulfides Pb/Pb geochronology. Precambrian Research, 339. 105623 doi:10.1016/j.precamres.2020.105623 | Journal (article/letter/editorial) | | northeastern Botswana and 60 in the southwestern of the Zimbabwe Craton (Fig.1) is host to numerous types of ore...TGB, is located in the southwestern edge of the Zimbabwe Craton, 111 which extends in a southwestern...Botswana (Fig.1A, Zhai et al., 2006). The 112 Zimbabwe Craton is separated from the Kaapvaal Craton by...2002; Kampunzu et al., 2003). The part of the Zimbabwe Craton exposed in 116 Botswana is further subdivided...gneisses (Bagai et 145 al., 2002) and Phoenix Mine Gabbro (Van Geffen, 2004), the TTG from the TGB |  | | Journal (article/letter/editorial) | | Kalgoorlie (Fig. 1). Discovered in 2005, Tropicana gold mine is jointly owned by AngloGold Ashanti Limited (70%)...west terrane Coastline Prospect / project N Gold mine (> 5 Moz) Town Fig. 1. Pre-Neoproterozoic basement...and tonalitic gneiss Quartz±grunerite±pyrite±pyrrhotite breccia / chert Gold lode (â„ 0.3 g/t Au) Drill...rock package, the dominant sulfide mineral is pyrrhotite, which occurs as fine anhedral disseminations...with accessory (generally modally insignificant) pyrrhotite, chalcopyrite, electrum, and telluride minerals |  | | Journal (article/letter/editorial) | | amphibolite facies sources. Although pyrite to pyrrhotite prograde desulfidation reactions are unlikely...Ferry (1981) noted the conversion of pyrite to pyrrhotite in metamorphism of graphitic schist will take...carbonaceous host rocks, such as in the Loulo district in Mali (Lawrence et al., 2013), may also lead...deposits from the Yilgarn, Superior, Dharwar, and Zimbabwe cratons have values between about 10-24 per mil...hydrothermal muscovite from the Devonian Charters Towers district in Queensland has values of 8-17 per mil (Kreuzer |  | Brando Soares, Mariana, CorrĂȘa Neto, Atlas Vasconcelos, Bertolino, Luiz Carlos, Alves, Felipe Emerson AndrĂ©, de Almeida, AntĂŽnio Modesto, Montenegro da Silva, Pedro Henrique, Mabub, Ricardo Oliveira de AraĂșjo, Manduca, Luedson GuimarĂŁes, AraĂșjo, Ivan Mendes Caixeta de Pamplona (2018) Multistage mineralization at the hypozonal SĂŁo SebastiĂŁo gold deposit, Pitangui greenstone belt, Minas Gerais, Brazil. Ore Geology Reviews, 102. 618-638 doi:10.1016/j.oregeorev.2018.09.028 | Journal (article/letter/editorial) | | magnetite, where the main developed phases are: pyrrhotite, chalcopyrite, arsenopyrite, pyrite and arsenian-pyrite...arsenian-pyrite. Native Au occurs as inclusions in pyrrhotite formed at dilatation domains (e.g., breccias...Ag-rich gold (electrum), native Bi, tourmaline, pyrrhotite, chalcopyrite, and notably bismuth tellurides...hydrothermal overprint. Nevertheless, at the Turmalina gold mine (1.172 Moz with 4.22 g/t), the only other known...staurolite â FabrĂcio-Silva, 2018) and of a distinct pyrrhotite-rich assemblage (Lobato and Vieira, 1998; El-Raissi |
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