 | 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 |  | Perrouty, StĂ©phane, AillĂšres, Laurent, Jessell, Mark W., Baratoux, Lenka, Bourassa, Yan, Crawford, Brenton (2012) Revised Eburnean geodynamic evolution of the gold-rich southern Ashanti Belt, Ghana, with new field and geophysical evidence of pre-Tarkwaian deformations. Precambrian Research, 204. 12-39 doi:10.1016/j.precamres.2012.01.003 | Journal (article/letter/editorial) | | Eburnean geodynamic evolution of the gold-rich southern Ashanti Belt, Ghana, with new ïŹeld and geophysical...2012 Keywords: Birimian Eburnean Paleoproterozoic Ghana Mineralisation a b s t r a c t Integration of regional...paleoproterozoic structural evolution of southwestern Ghana. The study area is dominated by three metavolcanic...Sefwi Group, the Kumasi Group (Birimian) and the Tarkwa Group (Tarkwaian) that were intruded by abundant...manifested as regional scale folding in the southern Ashanti Belt. D1 synorogenic granitoids were intruded between |  | | 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...conditions of regional metamorphism and the subsequent gold mineralization event. Metapelites with well-developed...hydrothermal alteration assemblages associated with gold mineralization in a wide compositional range of |  | | 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 |  | 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) | | inclusion studies of the Abawso gold prospect, near the Ashanti Belt, Ghana Received: 9 January 2002 / Accepted:...Springer-Verlag 2003 Abstract The major Ghanaian lode gold deposits are preferentially aligned along the western...eastern contacts of the Kumasi Basin with the Ashanti and Sefwi Belts, respectively. The investigated...concession, covering the workings of the old Ettadom mine, is situated 3 km west of the lithological contact...the Birimian metavolcanic rocks of the Akropong Belt in the east with the Birimian metasedimentary rocks |  | 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) | | content of ÂŻuid inclusions in gold mineralisations in the Ashanti Belt, Ghana: a new category of ore forming...ore-forming ÂŻuids in gold deposits of the Paleoproterozoic Ashanti Belt (Ghana) is a welcome addition...addition to the understanding of Paleoproterozoic lode-gold deposits in the Birimian of West Africa. The authors...inclusion studies only, that the gold mineralisation of the Ashanti Belt is probably derived from a CO2-rich...further imply that the mineralisation in the various gold deposits took place under drastically diÂerent temperature |  | | Journal (article/letter/editorial) | | content of ÂŻuid inclusions in gold mineralisations in the Ashanti Belt, Ghana: a new category of ore forming...publication on the mesothermal gold deposits in the Ashanti Belt of Ghana, we describe the regional occurrence...0.8) ÂŻuid inclusion assemblages associated with gold mineralisations of variable structural settings...possible primary and secondary processes and models for Au-mineralising ÂŻuids and constraints on the processes...diÂculties with respect to the solubility and transport of Au in such ÂŻuids. We conclude with a number of open |  | | Journal (article/letter/editorial) | | geology, metallogenesis and prospectivity of several gold deposits from the Archaean and Palaeoproterozoic...with inclusion of a summary of a Cu\\Au Guelb Moghrein deposit in Mauritania, and descriptions of manganese...portfolio of the West African craton and contextualize gold, iron-oxide coppergold, iron ore, aluminium, diamond...Markwitz et al., 2015). Unfortunately many of the non-gold mineral occurrences/deposits, their exploration...MilĂ©si et al., 1989; BĂ©ziat et al., 2008 on regional gold metallogenesis; Nyame et al., 2002; Beauvais et |  | | 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 |  | 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 |  | | Book | | African economy during the interwar period Ghana, independence and gold: a case study Conclusion Poverty and...an agent of poverty in West Africaâs smallscale gold-mining industry Sandra Pardie and Gavin M. Hilson...Fostering cooperation between small- and largescale gold miners in West Africa Richard K. Amankwah and C...assessment of relations between ASM and large-scale mine parties in West Africa Possible ways forward Artisanal...107 109 mel 112 113 10. Artisanal and small-scale gold mines in Burkina Faso: today and tomorrow iS Eric |  | 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 |  | 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 |  | Tourigny, Ghislain, Tranos, Markos D., Masurel, Quentin, Kreuzer, Oliver, Brammer, Steffen, Owusu-Ansah, Kwaku, Yao, David, Hayford, Thomas (2019) Structural controls on granitoid-hosted gold mineralization and paleostress history of the Edikan gold deposits, Kumasi Basin, southwestern Ghana. Mineralium Deposita, 54 (7) 1033-1052 doi:10.1007/s00126-018-0858-5 | Journal (article/letter/editorial) | | on granitoid-hosted gold mineralization and paleostress history of the Edikan gold deposits, Kumasi Basin...Basin, southwestern Ghana 2 Ghislain Tourigny 1 & Markos D. Tranos & Quentin Masurel 3 & Oliver Kreuzer...> 9 Moz total aggregate gold endowment at the Edikan mine, Kumasi Basin, Ghana, is contained within a...a cluster of orogenic gold deposits located along the Akropong fault zone. The granitoid-hosted orebodies...Esuajah), essentially an interconnected mesh of gold-bearing quartz veins, formed during deformation |  | | Report (chapter) | | evolution of the Palaeoproterozoic gold-rich Ashanti belt, Ghana V. H A R C O U E T 1,2, L. G U I L...France Abstract: The region of the gold-rich Ashanti belt in southern Ghana was chosen as the subject for...Eburnean orogeny (2130-2095 Ma), just before ore deposit formation. This gives a new insight into the regional...margins of each lithological unit, including the Ashanti belt. These anomalies are related to the distortion...high-precision geochronological data has demonstrated that gold deposition was not a continuous process through |  | 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 |  | GUEYE, M., VAN DEN KERKHOF, A. M., HEIN, U. F., DIENE, M., MUCKE, A., SIEGESMUND, S. (2013) STRUCTURAL CONTROL, FLUID INCLUSIONS AND CATHODOLUMINESCENCE STUDIES OF BIRIMIAN GOLD-BEARING QUARTZ VEIN SYSTEMS IN THE PALEOPROTEROZOIC MAKO BELT, SOUTHEASTERN SENEGAL. South African Journal of Geology, 116 (2) 199-218 doi:10.2113/gssajg.116.2.199 | Journal (article/letter/editorial) | | STUDIES OF BIRIMIAN GOLD-BEARING QUARTZ VEIN SYSTEMS IN THE PALEOPROTEROZOIC MAKO BELT, SOUTHEASTERN SENEGAL...The Paleoproterozoic Mako Belt in eastern Senegal is characterised by gold-bearing quartz veins. These...rocks in an Early Proterozoic greenstone belt. In the Mako Belt the multi-stage deformed quartz veins and...microstructures and CL properties. The high-grade Au-bearing quartz veins contain one or more generations...quartz. Gold in the mineralised zones occurs either as inclusions in pyrite or as native gold. Mineralisation |  | | 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 |  | 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 |
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