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Greywacke from
Ashanti Mine, Obuasi Gold Project, Ashanti Region, Ghana


Locality type:Mine
Classification
Type:Greywacke
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Greywacke data
Locality Data:Click here to view Ashanti Mine, Obuasi Gold Project, Ashanti Region, Ghana
Data Identifiers
Mindat Occurrence Record ID:1317929
Long-form Identifier:1:3:1317929:4
GUID (UUID V4):640c9640-965e-4fd8-84c4-6f428be9b7a5
Nearest other occurrences of Greywacke
43.6km (27.1 miles) Esaase prospect, Ashanti Region, Ghana
References
Reference Search (possible matching items)
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...related to regional gold mineralization, although mineralized samples from the general region show somewhat...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)
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)
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)
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
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)
Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi, Steven M. Reddy, Diana Plavsa...Antimony in rutile as a pathfinder for orogenic gold deposits, Ore Geology Reviews (2019), doi: https://doi... Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi1,2, Steven M. Reddy1, Diana...Australia aagangi@uj.ac.za Key words: Gold, antimony, orogenic gold deposit, indicator mineral, exploration...applicability of rutile as a pathfinder for orogenic gold deposits, which are an important source of this
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)
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)
    Gold mineralisation in the essakane goldfield in Burkina Faso, west African craton Asinne...article as: Tshibubudze, Asinne, Hein, Kim A.A., Gold mineralisation in the essakane goldfield in Burkina...apply to the journal pertain. ACCEPTED MANUSCRIPT Gold mineralisation in the Essakane goldfield in Burkina...known for its structurally hosted Au deposits in Ghana, Burkina Faso, Côte d’Ivoire, Mali and Niger. The...Burkina Faso has produced D 1 606 000 ounces of gold since 2010 from the Essakane Main Zone. The Essakane
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...stratigraphy 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)
regional timing of the world-class Siguiri orogenic gold district (Guinea, West Africa) Erwann Lebrun 1 Noreen...2016 Abstract Siguiri is a world-class orogenic gold district hosted in the weakly metamorphosed Upper...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
Journal (article/letter/editorial)
lithostratigraphy of the Siguiri district: Implications for gold mineralisation in the Siguiri Basin (Guinea, West...b AngloGold Ashanti Ltd – Brownfields Exploration Technical Hub – Continental Africa Region, 44 St George...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...and siltstone/greywacke/limestone interbeds, decimetre- to metre-thick graded greywacke beds and debris
Journal (article/letter/editorial)
initiated the creation of crustal segments (Sefwi, Ashanti, Kibi belts, . . .). This was followed at around...regional-scale, first-order D2 faults (e.g. the Konongo-Ashanti-Prestea Fault) acted as channels exercising a control...displacement and geometry of a rigid block (southeastern Ghana) coinciding with a high stress zone. Tectonic forces...reverse-sinistral faults centred on the western border of the Ashanti Belt and formed a synclinorium centred on the Tarkwaian...order to determine the relationship between the gold-bearing hydrothermal event and the geodynamic evolution
Journal (article/letter/editorial)
DEPOSITA 9 Springer-Verlag 1994 Gold mineralization in As-rich mesothermal gold ores of the Bogosu-Prestea...mining district of the Ashanti Gold Belt, Ghana: remobilization of "invisible" gold A.H. Mumin 1, M.E. Fleet...district of southwestern Ghana is a 33 km section of the Early Proterozoic Ashanti Gold Belt. Greenschist facies...and mafic dikes host numerous economic mesothermal gold deposits. Structurally higher ores in the Bogosu...dikes. Most gold occurs as micrometre-size particles in arsenian pyrite, and as "invisible" gold in arsenian
Journal (article/letter/editorial)
Sefwi Greenstone Belt (ca. 2200–2070 Ma) in SW Ghana are derived from the integration of field observations...represents the collision (D1) of southern Ghana and central and NW Ghana/Ivory Coast which record different...exhumation; West African Craton; Sefwi Greenstone Belt; Ghana 2 1. Introduction The applicability of the...evolution of the Palaeoproterozoic crust of southwest Ghana, which comprises the Sefwi Greenstone Belt and the...the text and major shear zones transecting the SW Ghana. CD: Chiraa Domain; HD: Hwidiem Domain; BGD: Bechem
Journal (article/letter/editorial)
Structural Controls on an Orogenic Gold System: The World-Class Siguiri Gold District, Siguiri Basin, Guinea...Western Australia 6009, Australia 2 AngloGold Ashanti Ltd., Assets Development, Brownfields, 44 St. George...district, a world-class Paleoproterozoic orogenic gold camp located in the Birimian of northeastern Guinea...graywacke and this domain hosts the bulk of the gold endowment of the district. The three domains exhibit...NNW-SSE-directed-transtension responsible for most of the gold mineralization in the Siguiri district. The fourth
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)
matter associated with Paleoproterozoic orogenic-type gold deposits of West Africa Bohdan Kříbek a,∗ , Ivana...September 2015 Keywords: Carbonaceous matter Graphite Gold deposits Paleoproterozoic West Africa a b s t r...orogenic-type gold deposits in Burkina Faso (the Inata deposit), in Mali (the Syama deposit), and in Ghana (the...reserved. 1. Introduction Many mesozonal orogenic gold deposits in metasediments (Groves et al., 2003;...several types of carbonaceous material associated with gold: (1) in fault-fill veins associated with B. Kříbek
Journal (article/letter/editorial)
homepage: http://www.tandfonline.com/loi/tigr20 Gold mineralization paragenesis to tectonic structures... Timothée 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 KédougouKéniéba 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
Report (chapter)
Online First The Massawa gold deposit, Eastern Senegal, West Africa: an orogenic gold deposit sourced from...1, 2014 The Massawa gold deposit, Eastern Senegal, West Africa: an orogenic gold deposit sourced from...treloar@kingston.ac.uk) Abstract: The Massawa gold project is situated on the Senegalese side of the highly...inlier, which hosts several worldclass orogenic gold deposits/districts in western Mali (e.g. Loulo and...tetrahedrite veining distinguished by coarse visible gold and represents a late stage overprint on the primary
Journal (article/letter/editorial)
the Prestea Mesothermal Vein Gold Deposit in the Birimian System of Ghana a Napoleon Q. Hammond & Hidehiko...the Prestea Mesothermal Vein Gold Deposit in the Birimian System of Ghana, International Geology Review...the Prestea Mesothermal Vein Gold Deposit in the Birimian System of Ghana NAPOLEON Q. HAMMOND AND HIDEHIKO...Prestea lode gold deposit occurs in a graphitic shear zone in the Birimian system of Ghana. The Birimian...Proterozoic greenstone assemblage (**« 2100 Ma) with large gold deposits, consisting of a lower unit predominantly
Journal (article/letter/editorial)
shearing in the Paleoproterozoic Sefwi-Sunyani-Comoé region, West Africa Mark W. Jessell a,b,∗ , Prince O....Department of Geology, University of Ghana, PO Box LG 58, Legon, Accra, Ghana d Geological Survey Department...Department, PO Box M.80, Accra, Ghana b a r t i c l e i n f o Article history: Received 9 December 2011 Received...shearing Ghana Ivory Coast a b s t r a c t The Paleoproterozoic Sefwi-Sunyani-Comoé region that straddles...straddles the Ghana-Ivory Coast border in West Africa has been characterised as resulting from a combination
Journal (article/letter/editorial)
and Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali CHRISTOPHER R.M. MCFARLANE,1,†...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...associated with gold mineralization at the Morila deposit explicitly links granitic magmatism with gold mineralization
Journal (article/letter/editorial)
Email: kim.ncube-hein@wits.ac.za MA Abstract Gold deposits in the Syama and Tabakoroni goldfields...the Eburnean orogeny. In TE the Syama goldfield, gold mineralisation in 9 deposits is hosted in the hanging-wall...Shear Zone in basalt, greywacke, argillite, lamprophyre, and black shale. Gold is currently mined primarily...quartz-porphyry rocks. AC In the Tabakoroni goldfield, gold mineralisation is hosted in quartz veins in tertiary...amounts of arsenopyrite. There are four main styles of gold mineralisation including silica-sulphide lodes in
Journal (article/letter/editorial)
Accepted Manuscript Structural and gold mineralizing evolution of the world-class orogenic Mana District...Augustin, D. Gaboury, M. Crevier, Structural and gold mineralizing evolution of the world-class orogenic...that apply to the journal pertain. Structural and gold mineralizing evolution of the world-class orogenic...Burkina Faso Paleoproterozoic Tectonic evolution Gold mineralization U-Pb ages 1 Abstract: The Mana...world-class Paleoproterozoic orogenic gold district (~8 Moz) including five gold deposits (Fofina, Nyafé, Siou
 
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