 | Perrouty, Stéphane, Aillères, 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 field 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...manifested as regional scale folding in the southern Ashanti Belt. D1 synorogenic granitoids were intruded between...under greenschist metamorphic condition. Syn-D1 gold mineralisation associated with quartz veining could |  | Salvi, Stefano, Velásquez, German, Miller, John M., Béziat, 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 sulfide 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...focused on the major deposits situated along the Ashanti shear zone and in the adjacent Tarkwa Basin to...processes that control gold deposition at the regional scale. At Pampe, gold endowment has been estimated |  | | Journal (article/letter/editorial) | | constraints on gold mineralization and Paleoproterozoic crustal evolution in the Ashanti belt of southern...southern Ghana Thomas Oberth~r a,*, Ulrich Vetter a, Donald W. D a v i s b, Joe A. A m a n o r c a Federal...Toronto, Ontario, Canada M5S 2C6 Ashanti Gold~elds Company Ltd, Obuasi, Ghana Received 6 February 1997; received...Abstract U/Pb isotopic dating in the region of the Ashanti belt in Ghana has been carried out to improve understanding...understanding of crustal evolution and gold mineralization in this Paleoproterozoic terrane. A U/Pb zircon |  | | Journal (article/letter/editorial) | | Characteristics of Granitoid-Hosted Gold Deposits in the Birimian Terrane of Ghana: A Fluid Inclusion Microthermometric...granitoid-hosted gold deposits and prospects in the Birimian terrane of Ghana, as well as from the Sansu mine (Ashanti...microspectrometry. Fluid inclusions from the granitoid-hosted gold deposits are dominated by aqueous H2O-CO2-NaCl type...kbars for the gold deposits. By contrast, fluid inclusions in the Sansu mine at Ashanti mostly comprise...inclusions from both granitoid- and shear zone-hosted gold deposits are mainly composed of CO2 (80–95 mol %) |  | | Journal (article/letter/editorial) | | West Africa: The World’s Premier Paleoproterozoic Gold Province* Richard J. Goldfarb,1, 2,† Anne-Sylvie...approximate 10,000-metric ton (t) gold endowment, is one of the world’s 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...belts, and perhaps local intrusionrelated gold systems. The gold-hosting, mainly greenschist metamorphic |  | Allibone, A., Hayden, P., Cameron, G., Duku, F. (2004) Paleoproterozoic Gold Deposits Hosted by Albite- and Carbonate-Altered Tonalite in the Chirano District, Ghana, West Africa. Economic Geology, 99 (3) 479-497 doi:10.2113/gsecongeo.99.3.479 | Journal (article/letter/editorial) | | Paleoproterozoic Gold Deposits Hosted by Albite- and Carbonate-Altered Tonalite in the Chirano District, Ghana, West...Supergroup rocks of southwest Ghana host numerous mesothermal lode gold deposits, including the >38 million...million ounce (Moz) Ashanti deposit at Obuasi and other multimillion ounce deposits at Bogoso, Konongo...Konongo, Prestea, Bibiani, and in the Yamfo-Sefwi region. Gold deposits of the Chirano district are localized...intrusions. Weaker alteration and subparts per million gold grades extend into adjacent Birimian mafic igneous |  | | Journal (article/letter/editorial) | | ROBB 255 Gold mineralization in Palaeoproterozoic granitoids at Obuasi, Ashanti region, Ghana: Ore geology...South Africa. ABSTRACT Granitoid-hosted gold deposits at Obuasi are located along the eastern margin of...of the Kumasi basin, about 5 km west of the Ashanti goldfields, and comprise the auriferous Nhyiaso, Ayankyerim...These deposits represent a relatively new style of gold mineralization in the Ghanaian Birimian. The mineralization...sulphides (mainly pyrite, arsenopyrite) and carbonates. Gold is closely associated with the sulphides in both |  | Le Mignot, Elodie, Reisberg, Laurie, André-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 |  | Fougerouse, Denis, Micklethwaite, Steven, Ulrich, Stanislav, Miller, John, Godel, Bélinda, Adams, David T., McCuaig, T. Campbell (2017) Evidence for Two Stages of Mineralization in West Africa’s 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 Africa’s Largest Gold Deposit: Obuasi, Ghana Denis Fougerouse,1,† Steven Micklethwaite...Highway, Crawley, Western Australia 6009, Australia Ashanti Ltd., Assets Development Brownfields, 140 St George...Australia 6009, Australia Abstract The supergiant Obuasi gold deposit is the largest deposit in the Paleoproterozoic...Birimian terranes of West Africa with 62 Moz of gold (past production + resources). The deposit is hosted...of deformation at Obuasi. The D2Ob is the main deformation stage affecting the Obuasi district and corresponds |  | | Journal (article/letter/editorial) | | distribution of gold in quartz veins and sulfide ores of the Ashanti mine and other deposits in the Ashanti belt...belt of Ghana: genetic implications Received: 28 September 1995 / Accepted: 11 June 1996 Abstract The Ashanti...belt of Ghana constitutes a gold province which has produced a total of about 1500 t of gold historically...historically. Gold mineralization is found in steep, NNE-SSW to NE-SW trending shear zones predominantly transecting...Ma), and in recent placers. The distribution of gold, its chemistry, paragenesis and mineralogical siting |  | | Journal (article/letter/editorial) | | Telluride mineralization at Ashanti gold mine, Ghana R. J. BOWELL, R. P. FOSTER Department of Geology...Road, London SW7 5BD Abstract Gold mineralization at the Ashanti Mine occurs in shear zones which are...zone. However, gold-rich telluride mineralization in veins in the hangingwall of the Obuasi ore zone at...at Ashanti appears to have post-dated development of the major gold-bearing shear zone. Complex assemblages...high fo2 and high fT~2/f%. Replacement of earlier gold-sulphide mineralization is indicated. The fluids |  | Allibone, A., Teasdale, J., Cameron, G., Etheridge, M., Uttley, P., Soboh, A., Appiah-Kubi, J., Adanu, A., Arthur, R., Mamphey, J., Odoom, B., Zuta, J., Tsikata, A., Pataye, F., Famiyeh, S., Lamb, E. (2002) Timing and Structural Controls on Gold Mineralization at the Bogoso Gold Mine, Ghana, West Africa. Economic Geology, 97 (5) 949-969 doi:10.2113/gsecongeo.97.5.949 | Journal (article/letter/editorial) | | and Structural Controls on Gold Mineralization at the Bogoso Gold Mine, Ghana, West Africa ANDREW ALLIBONE...PATAYE, SAMMUEL FAMIYEH, Bogoso Gold Ltd, Airport Post Office, Accra, Ghana AND EDDIE LAMB Resource Service...Service Group, P.O. Box 16486, Accra, Ghana Abstract The Bogoso gold deposit comprises ~20 open pits scattered...jogs often coincide with intersecting minor faults. Gold is largely confined to the graphitic mylonite, which...east-trending folds. Approximately 75 percent of the gold extracted from the Bogoso district has been mined |  | | 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 vicinity of the main shaft of the old Ettadom mine. Hydrothermal alteration includes sericitisation |  | | 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...mineralisation. Here inclusions associated with the gold mineralisation contain a low salinity (<6 eq.wt...the gaseous inclusions of 0.65 to 1.06 g/cm3 at Ashanti, 0.85 to 0.98 g/cm3 at Prestea, up to 1.02 g/cm3 |  | | Report (chapter) | | Mobility of arsenic in groundwater in the Obuasi gold-mining area of Ghana: some implications for human health...Resources Research Institute, PO Box M32, Accra, Ghana 3Department of Biotechnology, University for Development...Development Studies, PO Box 1350, Tamale, Ghana Abstract: Arsenic in drinking water from streams, shallow...the Obuasi gold-mining area of Ghana range between < 2 and 175#gl -1. The main sources are mine pollution...is also higher in the deeper groundwaters. Deep mine exploration boreholes (70-100 m) have relatively |  | 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...Prestea) to giant (e.g. Obuasi) orogenic gold deposits which have made the region famous for more than 2...against derivation of the palaeoplacer gold from an orogenic gold source related to the compressional phase... Instead, they suggest that the gold source was either orogenic gold lodes related to an earlier compressional |  | Oberthuer, Thomas, Mumm, Andreas Schmidt, Vetter, Ulrich, Simon, Klaus, Amanor, Joe A. (1996) Gold mineralization in the Ashanti Belt of Ghana; genetic constraints of the stable isotope geochemistry. Economic Geology, 91 (2) 289-301 doi:10.2113/gsecongeo.91.2.289 | Journal (article/letter/editorial) | | Vol.91, 1996,pp 289-301 Gold Mineralization in the Ashanti Belt of Ghana: GeneticConstraints of the...ANDJOEA. AMANOR AshantiGoldfields Company Ltd., Obuasi,Ghana Abstract The Ashantibeltof Ghanaisthekeydistrictof...theDixcoveorbelt-type granitoids whichoccurwithin (e.g., Rye, 1993)gold deposits (seealsocontributions in the volcanicbelts...carbonin Birimianargillites andchertsfromGhana(Leube Gold Mineralization et al.,1990),anda stableisotope ...wasreinterpreted by LeubeandHirdes the interrelationships mine,goldmineralization ishosted in tightly (1986)and |  | | Journal (article/letter/editorial) | | Paleoproterozoic, turbidite-hosted, gold deposits of the Ashanti gold belt (Ghana, West Africa): Comparative analysis...analysis of turbidite-hosted gold deposits and an updated genetic model John Berge ⁎ JB MinQuest, Parkvägen...December 2010 Keywords: Turbidite-hosted gold deposits Graphite–gold association Interflow (chemical) sediments...fluids and gold a b s t r a c t The Paleoproterozoic gold deposits of the Ashanti gold belt, Ghana, occur...suggested in this article to belong to that class of gold deposits recognized as ‘turbidite-hosted’. Hence |  | | Journal (article/letter/editorial) | | Mineralogy and Mineral Chemistry of the Ashanti Gold Deposit at Obuasi, Ghana Shiloh OSAE*, Katsuo KASE** and...Abstract: The gold deposit at Ashanti occurs in the Proterozoic Birimian formation of Ghana. Two main ore...types mined from the deposit are gold-bearing quartz veins, and gold-sulfide disseminations in metasediments...metavolcanics. The main sulfide minerals in the gold-sulfide disseminated ores are arsenopyrite, pyrite...arsenopyrite commonly occur in small amounts, but gold mostly occurs in contact with tetrahedrite, chalcopyrite |  | Salvi, S., Sangaré, A., Driouch, Y., Siebenaller, L., Béziat, 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) | | elsevier.com/locate/oregeorev The Kalana vein-hosted gold deposit, southern Mali S. Salvi a,⁎, A. Sangaré...Al Qods Hippodrome, BP 2699 Bamako, Mali d Avnel Gold Mining Limited, 39 Cheval Place, London SW7 1EW...veins 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 first episode, during...stages of vein growth, formed micron-size native gold inclusions in arsenopyrite; a later episode, during |  | Ouiya, Pascal, Siebenaller, Luc, Salvi, Stefano, Béziat, Didier, Naba, Séta, Baratoux, Lenka, Naré, Athanase, Franceschi, Guy (2016) The Nassara gold prospect, Gaoua District, southwestern Burkina Faso. Ore Geology Reviews, 78. 623-630 doi:10.1016/j.oregeorev.2015.11.026 | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/oregeorev The Nassara gold prospect, Gaoua District, southwestern Burkina Faso...Craton Boromo Greenstone Belt Burkina Faso Orogenic gold Shear zone a b s t r a c t The Nassara-Au prospect...at the southern termination of the Boromo Belt. Gold is associated with pyrite and other Fe-bearing minerals...As-rich growth zones, the latter containing gold inclusions. Gold mineralization formed during D2NA. Subsequent...related are devoid of gold. Nassara is a classical orogenic gold occurrence where gold is associated to disseminated |  | 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 |  | | Journal (article/letter/editorial) | | auriferous fluids in African Archean and Proterozoic gold deposits? Constraints from stable carbon isotopic...fluid inclusions in quartz from selected gold deposits in Ghana and Zimbabwe have been analyzed using a...inclusions from Archean and Paleoproterozoic orogenic gold deposits and points to diverse sources of CO2 in...generalized for other Archean and Proterozoic orogenic gold deposits worldwide remains open. However, a significant...Rohstoffe, Stilleweg 2, 30655 Hannover, Germany (Ghana) differ considerably from the δ13CCO2 values of |  | | Book | | Ver' "\ ~~ • THE MINERAL AND ROCK RESOURCES OF GHANA f btYON RALPH Dedicated to my parellfs for not...ISBN 90 6191 597 X paper edition only for sale in Ghana © 1985 A.A.Balkema, P.O.Box I 675, 3000 BR Rotterdam...REPUBLIC OF GHANA- GEOGRAPHY,PHYSIOGRAPHY,GEOLOGY AND GEOHYDROLOGY 6 3. THE MINERALRESOURCESOF GHANA - BACKGROUND...EXPLOITATION IN GHANA 572 12. TABLES OF SUMMARY OF MINERAL AND ROCK RESOURCESOF GHANA 577 13. LEGISLATION...590 APPENDIX 597 INDEX 602 V Preface The Ghana Geological SuJ;"vey DepaJ;"tment in 1.962, published |  | Perrouty, Stéphane, Jessell, Mark W., Bourassa, Yan, Miller, John, Apau, Daniel, Parra-Avila, Luis A., Le Mignot, Élodie, Velásquez, Germán, Ganne, Jérôme, Siebenaller, Luc, Baratoux, Lenka, Aillères, Laurent, André-Mayer, Anne-Sylvie, Béziat, 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 Stéphane Perrouty a,f,⁎, Mark W. Jessell...earlyorogenic gold deposit located on the eastern flank 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...(Moz) low-grade orogenic gold system. Historical production is over 1 Moz of gold and current indicated |
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