 | 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 |  | 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 |  | | 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 |  | | 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...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...Ma), and in recent placers. The distribution of gold, its chemistry, paragenesis and mineralogical siting |  | 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 |  | | 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 |  | Dai, Xiongxin, Boamah, Daniel, Koeberl, Christian, Reimold, Wolf Uwe, Irvine, Gordon, McDonald, Iain (2005) Bosumtwi impact structure, Ghana: Geochemistry of impactites and target rocks, and search for a meteoritic component. Meteoritics & Planetary Science, 40 (9) 1493-1511 doi:10.1111/j.1945-5100.2005.tb00414.x | Journal (article/letter/editorial) | | http://meteoritics.org Bosumtwi impact structure, Ghana: Geochemistry of impactites and target rocks, and...and environs of the Bosumtwi impact structure, Ghana, have been investigated for the possible presence...contents are high and possibly related to regional gold mineralization, although mineralized samples from...centered at 06°30′N and 01°25′W Bosumtwi crater in Ghana is a wellpreserved, complex impact structure. It...Geographic location of the Bosumtwi impact crater, Ghana, in relation to the Ivory Coast tektite strewn field |  | | Journal (article/letter/editorial) | | Metalliferous Drainage Potential of Waste Rock on a Mine* 1 1 S. Fosu, 1C. Owusu, 1F. Ntsiful, 1K. Ackah...Ackah University of Mines and Technology, Tarkwa, Ghana Fosu S., Owusu C., Ntsiful, F. and Ackah K. (2020)...Metalliferous Drainage Potential of Waste Rock on a Mine”, Ghana Mining Journal, Vol. 20, No. 2, pp. 49-59. ...potential of fifty (50) waste rock samples from a Mine using Acid Base Accounting (ABA) techniques. Mineralogical... Metal sulphide Chemical formula Pyrite FeS2 Marcasite FeS2 Pyrrhotite Fe1-xS Chalcocite Cu2S Covellite |  | | Journal (article/letter/editorial) | | FIGURE pitchblende, chalcopyrite, anatase, marcasite, arsenopyrite, sphalerite and galena. Such minerals...widely in composition of cement Maximum content of gold' . Up to 1 - 553 g/ton No more than 0.06 ,...Archean granites Staryy Oslcol area Tarkwa gold field (Ghana) after A. I. Bezgubov, 1963 Lower Proterozoicof...Proterozoicof Lower Proterozoic of Tarkwa system Kursk series Archean granites, migma- Gneisses, schists...often seen in sevBodies containing confrom base of Tarkwa of conglomeral bodies in one prosystem for 630 |  | | Journal (article/letter/editorial) | | Characteristics of ore minerals associated with gold at the Prestea mine, Ghana NAPOLEONQ. HAMMOND Geological Institute... Japan Abstract Gold in Early Proterozoic Birimian greenstone at Prestea in Ghana is associated with...boulangerite and jamesonite. The occurrence of the gold is intimately associated with arsenopyrite and the...the major component of sulphosalts associated with gold and occurring in two distinct types. Type I show...As)4S13. The tetrahedrites co-precipitated with gold exhibit ideal characteristics indicating an equilibruim |  | | Book | | and % Associated Sulphides at the Almad^n Mercury Mine, Spain.7 BARTHOLOME, P. , EVRARD, P. , KATEKESHA...The Gold-bearing Tarkwaian of Ghana.275 TOURTELOT, H. A. , RILEY, L. B. : Size and Shape of Gold and...discussions on the genesis of the Precambrian uranium and gold conglomerates of the Witwatersrand (South Africa)...workable reefs. To be more exact, the uranium and gold mineralizations are border facies of basins, located...and Associated Sulphides at the Almaden Mercury Mine, Spain M. Arnold, A. Maucher, and F. Saupe Abstract |  | | 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) | | Reef is, in most cases, indistinguishable from the gold-, uranium- and pyrite-beating Archaean Witwatersrand...However, the prevailing opinion that the Black Reef gold mineralization was largely derived from reworking...Archaean * Corresponding author. ( ~ 3000-2700 Ma) gold- and uranium-bearing conglomerate horizons in the...~"-,k i ~ ' Chanel aooped ^leasof # I I'---Mine Boundary l, " / ° " l © r ° d / ' u b ° u t ° r...Reef is, in most cases, indistinguishable from the gold-, uranium- and pyrite-bearing Archaean WitwatersraJad |  | | Journal (article/letter/editorial) | | Minerals Inc., Chile The Capricornio epithermal gold–silver–copper deposit, in the Region II, Chile,...traced deeper than 150–200 m from the surface, and gold is enriched mainly in the first 50 m. The reason...sulphides. Metal ratios are highly variable, and gold is almost absent. Zircons are common in the pegmatoidal...metal (LCT, lithium–caesium–tantalum) pegmatite belt occurs along the eastern margin of the Tullow Lowlands...and associated rocks from two localities in the belt, Aclare and Moylisha. LCT and barren pegmatites |  | | Book | | Gold Metallogeny and Exploration Edited by R.P. FOSTER Senior Lecturer in Economic Geology Department...the high and continuing demand for gold has prompted a global gold rush on a scale never before seen,...heady days of Ballarat, California and the Yukon. Gold is being sought on every continent and, with very...genetic modelling for the many different types of gold deposits now recognized. This proliferation of data...aspects of gold metallogeny and exploration, ranging from the chemical distribution of gold in the Earth's |  | | Report (volume) | | Mine Water Hydrogeology and Geochemistry Geological Society Special Publications Society Book Editors... GEOLOGICAL SOCIETY SPECIAL PUBLICATION No. 198 Mine Water Hydrogeology and Geochemistry EDITED BY P...WOLKERSDORFER, C. Mine water tracing 47 WHITWORTH, K.R. The monitoring and modelling of mine water recovery...physically based model of rebound in South Crofty tin mine, Cornwall 89 ROBINS, N.S., DUMPLETON, S. & WALKER...Depressurization of the north wall at the Escondida Copper Mine, Chile 107 KUMA, J.S., YOUNGER, P.L. & BOWELL |  | | Journal (article/letter/editorial) | | elsevier.com/locate/epsl Earth's continental crustal gold endowment H.E. Frimmel ⁎ Division for Geodynamics...analysis of the temporal distribution of gold deposits, combined with gold production data as well as reserve...different genetic types of gold deposit, revealed that the bulk of the gold known to be concentrated in...the continental crust during a giant Mesoarchaean gold event at a time (3 Ga) when the mantle temperature...magmatic derivation of the first generation of crustal gold from a relatively hot mantle that was characterized |  | | Report (issue) | | Äikäs, R. Sarikkola GHANA The mineralized quartz-pebble conglomerates of Ghana .......................Paleocurrent and lithological faciès control of uranium and gold mineralisation in the Witwatersrand Carbon Leader...J.D. Carter, R.D. Gee Sedimentology, origin and gold potential of the Late Archean Lalla Rookh Basin...thorium-rich resistate minerals, and quartz (and gold if present). Although substantial dissolution and...the amphibolite faciès and are mined mainly for gold. In this report, the preservation of uraninite placers |  | | Journal (article/letter/editorial) | | Hunchunite Anyuiite Novodneprite Pb-Fe-aluminosilicate Gold Alkaline fluid Pt–Au placer Inagli Aldan Shield...chemical compositions of Au-Pb compounds and host gold particles, describe morphology and relationships... associated with K-feldspar and anyuiite in the gold grain. The new data together with data from other...and (3) novodneprite AuPb3 (the Novodneprovskoe gold deposit, Kazakhstan; Dyusembaeva et al., 2006)....in which hunchunite is reported from hydrothermal gold-uranium veins at the Rompas deposit, northern Finland |  | | Journal (article/letter/editorial) | | The Netherlands 543 ORIGIN A N D DISTRIBUTION OF GOLD IN THE H U R O N I A N SUPERGROUP, C A N A D A --...and Harron, G.A., 1983. Origin and distribution of gold in the Huronian Supergroup, Canada -- the case for...observations and experimental results show that gold is mobile under a wide range of natural conditions...However, the extent to which, and the form(s) in which gold was mobile in ancient placers remains speculative...been active in redistributing the gold. Huronian paleoplacer gold deposits span a critical transition |  | | Catalog/List | | black-brown cleavage Yakutia. Russin 5mm£2 Rawhide Mine, MohavcCounty, ½xY,£3 Arizona , US.A . l.x2 50p...group AlS0/4 Al S0/4 ✓ New East Whcal Russell mine, Devon .England Madagascar Railway cutting nearCreston...in Porphyl)·. Pure grey metallic mass San Jose Mine. Oruro, Bolivia 6x6mm £3 23 ANHYDRITE Rich white...Variety Francolitc.rich mass of micro ✓ Holmbush Mine. Kelly Bray . Cornwall crystals over the main surface...MAGNESIO. Rich black fibrous in Syenite Carrock Mine Cumbria l x l £ 1 .50 l x2 £3 Safrou, Morocco |  | | Journal (article/letter/editorial) | | Multi-stage and multi-sourced fluid and gold in the formation of orogenic gold deposits in the world-class Mana...Multi-stage and multi-sourced fluid and gold in the formation of orogenic gold deposits in the world-class Mana... Multi-stage and multi-sourced fluid and gold in the formation of orogenic gold deposits in the world-class Mana...Paleoproterozoic orogenic gold district (∼8.0 Moz) that includes five gold deposits (Fofina, Nyafé, Siou...of the Birimian Houndé greenstone belt, western Burkina Faso. The gold deposits recorded different styles |  | | Catalog/List | | Two new Gold locations and Copper after Aragonite. Metallic minerals , Arsenopyrite Ghana, Ilmenite...South Africa,Cobaltian Gersdorffite from Gortdmm Mine Containing unusual elements , Iquiqueite,Galkhaite...grey masses with possible Als1oni1e Fallowficld mine. Ix½ £4 Ba Ca C0/3 micros. Hexham.Nonhumbcrlond..._ _ __ ___ _____ _ _ _ _ 21 7 ANDORITE San Jose Mine, Oruro. Bol ivia 6x6mm £3 Pure grey metallic mass...Andesite _ .• __ _ ____ . __ lx2£2. 50 2x2 Holmbush Mine, Kelly Bray . 32 APATITE Variety Francol i te.rich |  | | Journal (article/letter/editorial) | | Geology Vol. 98, 2003, pp. 1329–1353 A Review of Gold Mineralization Styles in Finland PASI EILU,†,* Department...Helsinki, Finland Abstract A wide range of styles of gold mineralization has been recognized in Finland, including...sulfidehosted, paleoplacer, and placer deposits. Gold production in the past was principally as a byproduct...of production from recently discovered, gold-only deposits. Gold mineralization occurred during distinct...in eastern and northern Finland contain orogenic gold deposits dated at about 2.75 to 2.70 Ga, suggesting |
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