 | 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...clastic rocks from Damang and Bippo Bin, northeast of Tarkwa. The overall data distribution broadly overlaps |  | Mil�si, J.P., Ledru, P., Ankrah, P., Johan, V., Marcoux, E., Vinchon, Ch. (1991) The metallogenic relationship between Birimian and Tarkwaian gold deposits in Ghana. Mineralium Deposita, 26 (3) doi:10.1007/bf00209263 | Journal (article/letter/editorial) | | relationship between BMmian and Tarkwaian gold deposits in Ghana J.P. Mil~si 1, p. Ledru 1, p. Ankrah z...GeologicalSurvey Department, PO Box M. 80, Accra, Ghana Received: November 14, 1989/Accepted: December 12...traditional concept of the Early Proterozoic gold deposits in Ghana i.e. gold-bearing shear zones overlain by Tarkwaian...Tarkwaian paleoplacers containing reworked gold derived from the shear-zones - needs to be reconsidered...reconsidered in the light of recent research in Ghana, the Ivory Coast and French Guiana. This research has revealed |  | | Journal (article/letter/editorial) | | inclusions in quartz-pebbles of the gold-bearing Tarkwaian conglomerates of Ghana as guides to their provenance...Proterozoic Aubearing Tarkwaian conglomerates in Ghana reveal several original (inherited) pre-sedimentary...inclusions in quartz-vein type gold deposits of the Birimian Supergroup in Ghana and Burkina Faso. This type...inclusions has not been reported from any other lode-gold deposit of greenstone affiliation and is thus a...a specific characteristic for Birimian-hosted gold deposits. Therefore, it can be used as an unequivocal |  | 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...mineralization has an Eoeburnean age (2164 ± 22 Ma, Re–Os on pyrite) and is characterized by quartz veins, by a carbonate...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 |  | | 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...deposit studied. Devolatilization of greenstone belt rocks is the most likely source for CO2 in some |  | 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 |  | 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...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) | | and provenance of Birimian and gold-bearing Tarkwaian sediments in Ghana, West Africa D . W . D a v i s...Strasbourg, France dTGL, State Gold Mining Corporation, Accra, Ghana Received November 16, 1992; revised...Eburnean rocks of Ghana. Gold-bearing and barren Tarkwaian conglomerates in the Tarkwa basin, and a volcanogenic...synvolcanic granitoid plutons in the Sefwi and Ashanti belts, which flank the Kumasi basin. This suggests...are typical of the region. Significant epigenetic gold mineralization probably began in the short time |  | | Journal (article/letter/editorial) | | Fluid Source for Orogenic Gold Mineralization at the Damang Deposit, Ghana Alistair J.R. White,1,2,†...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...metamorphic, igneous, and metasomatic events. Orogenic gold mineralization occurred late in the geologic paragenesis...fluids and the host rock resulted in precipitation of gold in association with sulfide-carbonate-potassic alteration |  | 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 U–Th–total 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, 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...deposits situated along the Ashanti shear zone and in the adjacent Tarkwa Basin to the east, neglecting...processes that control gold deposition at the regional scale. At Pampe, gold endowment has been estimated |  | | Journal (article/letter/editorial) | | pp. 4. Liebenberg, W. R., 1956, The occurrence of gold and radloaetive minerals in the Witwatersrand: Geol...journalProfessorDavidsonand Dr. Bosazzadiscuss the originof the gold in the Ghanabanketsand alsorefer to the 1930publication...Davidsoninfers that pyritemustbea rare alluvialmineralin Ghana,and Bosazzathat specialconditions,for examplethe...containingsulphideswere separatelyexamined. Pyrite, includinglimonitepseudomorphs after pyrite, is actuallymuch more commonin...affectthe validity of Davidsoh'sargumentthat the gold in the Ghana banketsmust have beendepositedin an oxidizingenvironment |  | | Journal (article/letter/editorial) | | and hydrothermal alteration at the Damang gold deposit, Ghana A. J. R. WHITE,1,2 D. J. WATERS1 AND L. J...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 H2O–CO2–K2O–H2S...a typical assemblage of muscovite, ankerite and pyrite, while intrusive dolerite bodies contain biotite...conditions of regional metamorphism and the subsequent gold mineralization event. Metapelites with well-developed |  | | Journal (article/letter/editorial) | | Source of Early Proterozoic Lode Gold Deposits of the Birimian Volcanic Belt, West Africa a a Reiner Klemd...Source of Early Proterozoic Lode Gold Deposits of the Birimian Volcanic Belt, West Africa, International Geology...Source of Early Proterozoic Lode Gold Deposits of the Birimian Volcanic Belt, West Africa REINER KLEMD, U...17:41 19 April 2015 Gold-bearing veins of Early Proterozoic lode gold deposits of Ghana and Burkina Faso...to 1.15 g/cm 3 ), in contrast to most other lode gold deposits of greenstone affiliation. Mineral modeling |  | | 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 |  | | 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 |  | | 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 IOCG’s, copper-gold that formed at ca. 2.1 Ga and approx. 680 Ma, and... Mineral Deposit Database highlight that gold and non-gold commodities formed in multiple 37 phases...of iron 38 ore, nickel sulphides, diamonds and gold in the earth’s crust. The pre-Eburnean or Tangaean-...EoEburnean-Eburnean I Event yielded gold, and the major Eburnean Orogeny yielded gold, 40 iron ore, manganese |  | | Journal (article/letter/editorial) | | and paleoplacer gold mineralisation in early Proterozoic rocks from southwest Ghana, West Africa B.N...Proterozoic age (ca. 2100 Ma) host the major gold deposits in Ghana. The deposits are either located in mesothermal...of mineralisation are largely confined to the Ashanti Belt, one of four parallel northeasttrending volcanic...and structure of the belts are similar, the Ashanti belt is characterised by a more tectonised northwest...where most of the epigenetic gold deposits are located. In these deposits, gold mineralisation is located |  | | 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...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 age |  | | Journal (article/letter/editorial) | | Proterozoic Birimian Supergroup of Ghana and Some Aspects of its Associated Gold Mineralization ALFRED LEUBE...2Geological Survey Department, Box M80, Accra (Ghana) Abstract Leube, A., Hirdes, W., Mauer, R. and...Proterozoic Birimian Supergroup of Ghana and some aspects of its associated gold mineralization. Precambrian..._+66 Ma) form part of the West African craton. Ghana contains the eastern portion of the Birimian terrane...chemistry ), characterize the Birimian Supergroup of Ghana. The belts are separated by basins containing isoclinally |  | 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...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...Obuasi and contribute equally to the gold budget. These are (1) gold-bearing sulfides, dominantly arsenopyrite |  | Lebrun, Erwann, Thébaud, Nicolas, Miller, John, Ulrich, Stanislav, Bourget, Julien, Terblanche, Ockert (2016) Geochronology and lithostratigraphy of the Siguiri district: Implications for gold mineralisation in the Siguiri Basin (Guinea, West Africa) Precambrian Research, 274. 136-160 doi:10.1016/j.precamres.2015.10.011 | Journal (article/letter/editorial) | | lithostratigraphy of the Siguiri district: Implications for gold mineralisation in the Siguiri Basin (Guinea, West...Highway, Crawley, WA 6009, Australia b AngloGold Ashanti Ltd – Brownfields Exploration Technical Hub – Continental...Geochronology Lithostratigraphy Early architecture Gold a b s t r a c t Geochronology and lithostratigraphic...the location of the world class Siguiri orogenic gold district. Three metasedimentary formations occur...that the Kintinian Formation is part of the Lower Tarkwa Group, best described as “late orogenic basin” |  | | 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 Kénéma–Man 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 copper–gold 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) | | 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 |  | | Book | | nineteenth century witnessed some of the greatest gold-mining migrations in history when dreams of bonanza... ing the Gold Coast of West Africa. El Dorado in West Africa explores the first modern gold rush of Ghana...Ghana in all its dimensions — land, labor, capital, traditional African mining, technology, transport...Professor Dumett tells the story of the expatriate-led gold boom of 1875-1900 against the background of | continued...West Africa The Gold-Mining Frontier, African Labor, and Colonial Capitalism in the Gold Coast, 1875-1900 |
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