 | Pigois, Jon-Philippe, Groves, David I., Fletcher, Ian R., McNaughton, Neal J., Snee, Lawrence W. (2003) Age constraints on Tarkwaian palaeoplacer and lode-gold formation in the Tarkwa-Damang district, SW Ghana. Mineralium Deposita, 38 (6) 695-714 doi:10.1007/s00126-003-0360-5 | Journal (article/letter/editorial) | | Tarkwaian palaeoplacer and lode-gold formation in the Tarkwa-Damang district, SW Ghana Received: 17 June 2002...epigenetic gold-forming events are recorded in the world-class gold province of southwest Ghana. A pre-Tarkwaian...pre-Tarkwaian event was the source of the world-class Tarkwa palaeoplacers whereas post-Birimian and Tarkwaian...world-class (e.g. Prestea) to giant (e.g. Obuasi) orogenic gold deposits which have made the region famous for more...Tarkwaian clastic rocks from Damang and Bippo Bin, northeast of Tarkwa. The overall data distribution |  | | Journal (article/letter/editorial) | | Fluid Source for Orogenic Gold Mineralization at the Damang Deposit, Ghana Alistair J.R. White,1,2,â ...Abstract Gold mineralization at the Damang deposit is unique among currently known orogenic gold deposits...deposits in Ghana, comprising gold hosted within metasediments of the Tarkwaian System and contained in a subhorizontal...array that formed during regional compression. The Damang region has an extended paragenesis involving numerous...events. Orogenic gold mineralization occurred late in the geologic paragenesis at Damang, postdating regional |  | | Journal (article/letter/editorial) | | content of fluid inclusions in gold mineralisations in the Ashanti Belt, Ghana: a new category of ore forming...samples from the Ashanti, Konongo-Southern Cross, Prestea, Abosso/ Damang and Ayanfuri gold deposits in the...the Ashanti Belt, Ghana. Primary fluid inclusions in quartz from mineralised veins of the Ashanti, Prestea...Prestea, Konongo-Southern Cross, and Abosso/Damang deposits contain almost exclusively volatile species...mineralisation. Here inclusions associated with the gold mineralisation contain a low salinity (<6 eq.wt |  | | Journal (article/letter/editorial) | | metamorphism and hydrothermal alteration at the Damang gold deposit, Ghana A. J. R. WHITE,1,2 D. J. WATERS1 AND...white@csiro.au) ABSTRACT Orogenic gold mineralization at the Damang deposit, Ghana, is associated with hydrothermal...hydrothermal alteration haloes around gold-bearing quartz veins, produced by the infiltration of a H2OâCO2âK2OâH2S...dolerite bodies contain biotite, ankerite and pyrrhotite, accompanied by the destruction of hornblende...conditions of regional metamorphism and the subsequent gold mineralization event. Metapelites with well-developed |  | Le Mignot, Elodie, Reisberg, Laurie, AndrĂ©-Mayer, Anne-Sylvie, Bourassa, Yan, Fontaine, Arnaud, Miller, John (2017) Re-Os Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton. Economic Geology, 112 (1) 145-168 doi:10.2113/econgeo.112.1.145 | Journal (article/letter/editorial) | | Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton Elodie...Archean-Proterozoic craton of West Africa hosts numerous gold deposits, which are spatially and temporally related...multiple deformation events. The majority of these gold deposits are located along shear zones. The structural...history is relatively well established for most gold deposits, but absolute timing of the mineralization...of gold events: Nassara and Kiaka in Burkina Faso and Wassa, Damang, and Obuasi in southern Ghana. Gold |  | | Journal (article/letter/editorial) | | West Africa: The Worldâs Premier Paleoproterozoic Gold Province* Richard J. Goldfarb,1, 2,â Anne-Sylvie...approximate 10,000-metric ton (t) gold endowment, is one of the worldâs great gold provinces and the largest...largest Paleoproterozoic gold-producing region. The gold resources are concentrated within the 2250 to 2000...major orebodies are best classified as orogenic gold deposit types, although there are paleoplacer and porphyry-skarn...belts, and perhaps local intrusionrelated gold systems. The gold-hosting, mainly greenschist metamorphic |  | White, Alistair, Burgess, Ray, Charnley, Norman, Selby, David, Whitehouse, Martin, Robb, Laurence, Waters, David (2014) Constraints on the timing of late-Eburnean metamorphism, gold mineralisation and regional exhumation at Damang mine, Ghana. Precambrian Research, 243. 18-38 doi:10.1016/j.precamres.2013.12.024 | Journal (article/letter/editorial) | | late-Eburnean metamorphism, gold mineralisation and regional exhumation at Damang mine, Ghana Alistair White a,b...Birimian Ghana Eburnean U/Pb dating UâThâtotal Pb dating Ar/Ar dating a b s t r a c t The Damang gold deposit...deposit in southwest Ghana is unique among known deposits in Ghana, comprising gold mineralisation in two...two distinct styles. Early gold, hosted in a stratigraphically controlled, auriferous quartzpebble conglomerate...conglomerate horizon, is overprinted by later gold mineralisation contained in a sub-horizontal fault-fracture |  | Salvi, Stefano, VelĂĄsquez, German, Miller, John M., BĂ©ziat, Didier, Siebenaller, Luc, Bourassa, Yan (2016) The Pampe gold deposit (Ghana): Constraints on sulfide evolution during gold mineralization. Ore Geology Reviews, 78. 673-686 doi:10.1016/j.oregeorev.2015.11.006 | Journal (article/letter/editorial) | | com/locate/oregeorev The Pampe gold deposit (Ghana): Constraints on sulïŹde evolution during gold mineralization Stefano...November 2015 Keywords: Ghana Orogenic gold Birimian Ashanti West Africa Gold nanoparticles a b s t r...r a c t The Ashanti belt, a world-renowned gold producing region in southwest Ghana, has received renewed...deposits situated along the Ashanti shear zone and in the adjacent Tarkwa Basin to the east, neglecting...smaller yet important occurrences, such as the Pampe deposit which occurs few kilometers to the west of this |  | | Journal (article/letter/editorial) | | formed 26 between ca. 2.5 - 2.3 Ga, nearly all gold, porphyry copper, lead-zinc and sedimentary 27...distinguished by major Precambrian 30 IOCGâs, copper-gold that formed at ca. 2.1 Ga and approx. 680 Ma, and...West African 36 Mineral Deposit Database highlight that gold and non-gold commodities formed in multiple...of iron 38 ore, nickel sulphides, diamonds and gold in the earthâs crust. The pre-Eburnean or Tangaean-...EoEburnean-Eburnean I Event yielded gold, and the major Eburnean Orogeny yielded gold, 40 iron ore, manganese |  | Salvi, S., SangarĂ©, A., Driouch, Y., Siebenaller, L., BĂ©ziat, D., Debat, P., Femenias, O. (2016) The Kalana vein-hosted gold deposit, southern Mali. Ore Geology Reviews, 78. 599-605 doi:10.1016/j.oregeorev.2015.10.011 | Journal (article/letter/editorial) | | com/locate/oregeorev The Kalana vein-hosted gold deposit, southern Mali S. Salvi a,â, A. SangarĂ© b,c...Al Qods Hippodrome, BP 2699 Bamako, Mali d Avnel Gold Mining Limited, 39 Cheval Place, London SW7 1EW...Arsenopyrite Gold Late-orogenic Late-tectonic a b s t r a c t The Kalana gold deposit occurs within...gently dipping thrust faulting. Two episodes of gold precipitation are recognized: a ïŹrst episode, during...stages of vein growth, formed micron-size native gold inclusions in arsenopyrite; a later episode, during |  | Fougerouse, Denis, Micklethwaite, Steven, Ulrich, Stanislav, Miller, John, Godel, BĂ©linda, Adams, David T., McCuaig, T. Campbell (2017) Evidence for Two Stages of Mineralization in West Africaâs Largest Gold Deposit: Obuasi, Ghana. Economic Geology, 112 (1) 3-22 doi:10.2113/econgeo.112.1.3 | Journal (article/letter/editorial) | | Mineralization in West Africaâs Largest Gold Deposit: Obuasi, Ghana Denis Fougerouse,1,â Steven Micklethwaite...Highway, Crawley, Western Australia 6009, Australia Ashanti Ltd., Assets Development Brownfields, 140 St George... Abstract The supergiant Obuasi gold deposit is the largest deposit in the Paleoproterozoic Birimian...West Africa with 62 Moz of gold (past production + resources). The deposit is hosted in the Paleoproterozoic...cleavage that is domainal in nature throughout the deposit. Two economic styles of mineralization occur at |  | Perrouty, StĂ©phane, Jessell, Mark W., Bourassa, Yan, Miller, John, Apau, Daniel, Parra-Avila, Luis A., Le Mignot, Ălodie, VelĂĄsquez, GermĂĄn, Ganne, JĂ©rĂŽme, Siebenaller, Luc, Baratoux, Lenka, AillĂšres, Laurent, AndrĂ©-Mayer, Anne-Sylvie, BĂ©ziat, Didier, Salvi, Stefano (2016) Geological setting of the Wassa gold deposit, SW Ghana. Ore Geology Reviews, 78. 687-691 doi:10.1016/j.oregeorev.2015.09.024 | Journal (article/letter/editorial) | | com/locate/oregeorev Geological setting of the Wassa gold deposit, SW Ghana StĂ©phane Perrouty a,f,â, Mark W. Jessell...earlyorogenic gold deposit located on the eastern ïŹank of the Ashanti Belt, in southwest Ghana. It is hosted...host rocks, and by deformed gold-bearing pyrite. Remobilization of this gold occurred during the late stages...associated with quartz-carbonate veins with visible gold and euhedral pyrites. © 2015 Elsevier B.V. All rights...overview/introduction The Wassa deposit is a multi-million ounce (Moz) low-grade orogenic gold system. Historical |  | Lebrun, Erwann, ThĂ©baud, Nicolas, Miller, John, Roberts, Malcolm, Evans, Noreen (2017) Mineralisation footprints and regional timing of the world-class Siguiri orogenic gold district (Guinea, West Africa) Mineralium Deposita, 52 (4) 539-564 doi:10.1007/s00126-016-0684-6 | Journal (article/letter/editorial) | | regional timing of the world-class Siguiri orogenic gold district (Guinea, West Africa) Erwann Lebrun 1 Noreen...world-class orogenic gold district hosted in the weakly metamorphosed Upper Birimian to Lower Tarkwa Group sedimentary...Perth, WA 6845, Australia vein set contains high gold contents of up to 43.3 ppm, in substitution in pyrite...pyrite crystal lattice, representing a minor first gold mineralisation event. The third and most prominently...late D3S and represents the second and principal gold mineralisation event. This mineralisation event |  | Amponsah, Prince Ofori, Salvi, Stefano, BĂ©ziat, Didier, Baratoux, Lenka, Siebenaller, Luc, Nude, Prosper Mackenzie, Nyarko, Richard Scriven, Jessell, Mark W. (2016) The Bepkong gold deposit, Northwestern Ghana. Ore Geology Reviews, 78. 718-723 doi:10.1016/j.oregeorev.2015.06.022 | Journal (article/letter/editorial) | | com/locate/oregeorev The Bepkong gold deposit, Northwestern Ghana Prince Ofori Amponsah a,b, Stefano...France Azumah Resources Ghana Limited, PMB CT452, Cantonments, Accra, Ghana IFAN Cheikh Anta Diop, Dakar...University of Ghana, Department of Earth Sciences, P.O. Box LG 58, Legon, Accra, Ghana f Centre for Exploration...Bepkong deposit Northwestern Ghana Gold mineralization a b s t r a c t The Bepkong gold deposit is located...WaâLawra belt of the Paleoproterozoic BaoulĂ©-Mossi domain of the West African Craton, in NW Ghana. It occurs |  | | Journal (article/letter/editorial) | | The West African Craton hosts major resources of gold, iron ore, aluminium ore, diamonds, phosphates and...ore and gold in the KĂ©nĂ©maâMan and Reguibat Shields during the Neo-Archean. The majority of gold, porphyry...same time diamond-bearing kimberlites developed in Ghana. Another distinct diamond event has been recognized...Isolated occurrences of IOCG's as well as copperâgold and gold formed in Pan-African/Variscan belts. During...become a focus for exploration and development of gold, iron ore, diamonds, aluminium ore, phosphate, and |  | | Journal (article/letter/editorial) | | skarn-type mineralization in Ivory Coast: The Ity gold deposit Didier BĂ©ziat a,â, Luc Siebenaller a, Stefano...Ivory Coast Gold mineralization Saprolitic zone Skarn a b s t r a c t Although the Ity deposit is the oldest...oldest operating mine in Ivory Coast, very few studies exist on this deposit. It is situated in Western...Ivory Coast, some 700 km northwest of Abidjan. The mine is presently operated and mined by SMI (SociĂ©tĂ©...Ity Mines), and has produced one million ounces of gold since its opening in 1991. All mined ore bodies |  | Le Mignot, Elodie, Siebenaller, Luc, BĂ©ziat, Didier, AndrĂ©-Mayer, Anne-Sylvie, Reisberg, Laurie, Salvi, Stefano, Velasquez, GermĂĄn, Zimmermann, Catherine, NarĂ©, Athanase, Franceschi, Guy (2017) The Paleoproterozoic Copper-Gold Deposits of the Gaoua District, Burkina Faso: Superposition of Orogenic Gold on a Porphyry Copper Occurrence?. Economic Geology, 112 (1) 99-122 doi:10.2113/econgeo.112.1.99 | Journal (article/letter/editorial) | | Paleoproterozoic Copper-Gold Deposits of the Gaoua District, Burkina Faso: Superposition of Orogenic Gold on a Porphyry...Boromo-Goren greenstone belt in southern Burkina Faso, is a rare case where economic copper and gold resources occur...and sulfide geochemistry reveal that copper and gold in the stockworks and surrounding altered rocks...breccia and is associated with early arsenic-poor and gold-free pyrite. The geochemistry of the plutonic rocks...an arc setting. Textural evidence indicates that gold mineralization is closely tied to a second generation |  | Dabo, Moussa, AĂŻfa, Tahar, Miyouna, TimothĂ©e, Abdoul Diallo, Diery (2016) Gold mineralization paragenesis to tectonic structures in the Birimian of the eastern DialĂ©-DalĂ©ma Supergroup, KĂ©dougou-KĂ©niĂ©ba Inlier, Senegal, West African Craton. International Geology Review, 58 (7) 807-825 doi:10.1080/00206814.2015.1123121 | Journal (article/letter/editorial) | | homepage: http://www.tandfonline.com/loi/tigr20 Gold mineralization paragenesis to tectonic structures... TimothĂ©e Miyouna & Diery Abdoul Diallo (2015): Gold mineralization paragenesis to tectonic structures...doi.org/10.1080/00206814.2015.1123121 ARTICLE Gold mineralization paragenesis to tectonic structures...the KĂ©dougouKĂ©niĂ©ba inlier indicate two phases of gold mineralization related to Eburnean tectono-magmatic...mainly composed of quartz + chlorite + pyrite and ± gold. Haematite and arsenopyrite are added in the sediments |  | | Journal (article/letter/editorial) | | enrichment of the Capricornio (Chile) epithermal Auâ Ag âCu mineralisation Giuseppe ArfeÌ*1, Roberto...Inc., Chile The Capricornio epithermal goldâsilverâcopper deposit, in the Region II, Chile, consists of...caused the deposition of the far greater El PenÌon deposit, in which individual mineralised shoots range from...traced deeper than 150â200 m from the surface, and gold is enriched mainly in the first 50 m. The reason...period. In this deposit, secondary electrum, which typically consists of over 95% Au, was produced from |  | Lambert-Smith, James S., Allibone, Andrew, Treloar, Peter J., Lawrence, David M., Boyce, Adrian J., Fanning, Mark (2020) Stable C, O, and S Isotope Record of Magmatic-Hydrothermal Interactions Between the FalĂ©mĂ© Fe Skarn and the Loulo Au Systems in Western Mali. Economic Geology, 115 (7). 1537-1558 doi:10.5382/econgeo.4759 | Journal (article/letter/editorial) | | Interactions Between the FalĂ©mĂ© Fe Skarn and the Loulo Au Systems in Western Mali James S. Lambert-Smith,1... Park Place, Cardiff, CF10 3AT, United Kingdom Gold (Holdings) Ltd, 3rd Floor, Unity Chambers, 28 Halkett...Australia Abstract The Gara, Yalea, and Gounkoto Au deposits of the >17 Moz Loulo mining district, largely...skarn deposits in the adjacent FalĂ©mĂ© batholith. The Au deposits are interpreted to have formed through phase...series opens the possibility that the Fe skarns and Au deposits are part of the same mineral system. In |  | Tedeschi, M.T., Hagemann, S.G., Kemp, A.I.S., Kirkland, C.L., Ireland, T.R. (2020) Geochronological constrains on the timing of magmatism, deformation and mineralization at the Karouni orogenic gold deposit: Guyana, South America. Precambrian Research, 337. 105329 doi:10.1016/j.precamres.2019.04.015 | Journal (article/letter/editorial) | | deformation and mineralization at the Karouni orogenic gold deposit: Guyana, South America Michael Tedeschi, Steffen...deformation and mineralization at the Karouni orogenic gold deposit: Guyana, South America, Precambrian Research...deformation and mineralization at the Karouni orogenic gold deposit: Guyana, South America 1 Michael Tedeschi,...Karouni deposit is located in central Guyana 35 km to the W of the former producing 5 Moz Omai mine and is...is interpreted to be an orogenic gold deposit. It is hosted in Rhyacian aged (2.2 to 2.1 Ga) volcano-sedimentary |  | | Journal (article/letter/editorial) | | Winter Meeting of the Geological Societyâs Mineral Deposit Studies Group and the Applied Mineralology Group...East Asian orogenic gold Craig J. R. Hart1, Richard J. Goldfarb2 1 Mineral Deposit Research Unit, Department...USA Orogenic gold systems comprise the largest number of gold deposits and greatest gold endowment of...settings that do not fit current models for orogenic gold deposits. These uncertainties conspire to cause...sources regarded to be integral to the orogenic gold deposit model. The vast landmass of Eastern Asia (China |  | | Journal (article/letter/editorial) | | minerals: chalcopyrite and pyrrhotite in the Peridotite Zone; and pyrrhotite with pentlandite, pyrite and...UK The world-class carbonate-hosted Navan ZnâPb deposit, Ireland, is Europeâs leading zinc producer. The...Ore depositional processes in the Navan ZnâPb deposit, Ireland, Econ. Geol., 93, 535â563. Fallick, A...Mines, Golden, CO 80401, USA The Kamoa copper deposit, Central African Copperbelt, Democratic Republic...consistent with an unconformity controlled uranium deposit (Bowell, 2011; Le Roux and Toens, 1982). Uranium |  | McFarlane, C. R. M., Mavrogenes, J., Lentz, D., King, K., Allibone, A., Holcombe, R. (2011) Geology and Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali. Economic Geology, 106 (5) 727-750 doi:10.2113/econgeo.106.5.727 | Journal (article/letter/editorial) | | and Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali CHRISTOPHER R.M. MCFARLANE,1,â ...QLD 4072 Australia Abstract The ~8 Moz Morila gold mine, hosted within Paleoproterozoic Birimian volcano-sedimentary...the late stages of the Eburnean orogeny. Visible gold at Morila is associated with variably deformed polymineralic...proximal intrusion-related source for this period of gold mineralization. This early formed mineralization...occurrence of immiscible Au-Sb-Bi-Te blebs within sills or dikes associated with gold mineralization at the |  | | Journal (article/letter/editorial) | | Orogenic gold: Common or evolving fluid and metal sources through time Richard J. Goldfarb...Goldfarb, Richard J., Groves, David I., Orogenic gold: Common or evolving ïŹuid and metal sources through...journal pertain. ACCEPTED MANUSCRIPT OROGENIC GOLD: COMMON OR EVOLVING FLUID AND METAL SOURCES THROUGH...*corresponding author: goldfarb@usgs.gov AC CE P Orogenic gold deposits of all ages, from Paleoarchean to Tertiary...from multiple sources as significant in orogenic gold formation. Nevertheless, there are broad ranges |
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