geological setting of the wassa gold deposit sw ghana


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WASSA GOLD MINE GHANA WASSA GOLD MINE GHANA Golden Star Resources is an established gold mining company that holds a 90 interest in the Wassa Prestea and Bogoso gold mines in Ghana In 2014 Golden Star produced 261 000 ounces of gold and is expected to produce 250 000 – 275 000 ounces in 2015 The Company is pursuing brownfield
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NI 43 101 Technical Report on The Asuogya Licence Ghana NI 43 101 Technical Report on The Asuogya Licence Ghana Report Prepared for Castle Peak Mining Ltd 510 999 West Hastings Street 7 4 Gold mineralisation in southwest Ghana 13 7 5 Licence Geology 14 8 DEPOSIT TYPE 16 9 EXPLORATION 17 NI 43 101 Technical Report on The Asuogya Licence Ghana 2 INTRODUCTION 2 1 Background
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SEG Foundation Student Field Trip 17 April 22 May 1 2018 Possible sourced from eroded older deposit to SE or E with Wassa speculated as a potential source Fine particulate gold and lack of nugget gold or gold in quartz suggests source from a disseminated gold deposit such as a sulphide rich shear zone hosted deposit Conglomeratic sample from the orebody B Iduapriem Mine Tarkwaian Paleoplacer Au
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2010 2018 GeoRessources Abridged Curriculum Vitae A S André Mayer December 2018 Page 3 18 André Mayer A S Ramiandrisoa N Vanderhaeghe O Rabeandrasana S Reisberg L Zimmermann C Re Os geochronological constraints on the Dabolava mesothermal gold deposit Madagascar implications for the Ikalamavony Sub domain age
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Golden Star Announces Drilling Results at its Wassa and Jul 15 2019· Golden Star Announces Drilling Results at its Wassa and Father Brown Deposits Including the Extension of Gold Mineralization at Both Locations PR Newswire July 15 2019
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Stéphane Perrouty Mineral Exploration Research Centre B Sc M Sc PhD Toulouse France I am a field structural geologist who extensively uses mineralogical lithogeochemical and geophysical tools Building two three dimensions multi scales multi parameters GIS and models of Precambrian regions is common in my research These models help in visualizing interactions between structures and mineralized altered domains and
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Golden Star Announces Drilling Results at its Wassa and Significant intercepts from Wassa are as follows 19 5 m grading 5 4 grams per tonne g t of gold Au from 1 227 m in hole BSDD19 400M 29 0 m grading 5 5 g t of Au from 423 2 m in hole
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Major Mines Projects Wassa Mine Golden Star Announces Continued Positive Drilling Results at its Wassa Deposit November 13 2019 Golden Star Announces Drilling Results at its Wassa and Father Brown Deposits Including the Extension of Gold Mineralization at Both Locations July 15 2019 Golden Star Files Updated Technical Report for Wassa Gold Mine June 24 2019
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Geological setting of the Wassa gold deposit SW Ghana CORE Geological setting of the Wassa gold deposit SW Ghana By Stéphane Perrouty Mark W Jessell Yan Bourassa John Miller Daniel Apau Luis A Parra Avila Élodie Le Mignot Germán Velásquez Jérôme Ganne Luc Siebenaller Lenka Baratoux Laurent Aillères Anne Sylvie André Mayer Didier Béziat and Stefano Salvi
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Baratoux Lenka Pages profils GET GET Revised Eburnean geodynamic evolution of the gold rich southern Ashanti Belt Ghana with new field and geophysical evidence of pre Tarkwaian deformations Precambrian Research DOI 10 1016 j precamres 2012 01 003
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Geological setting of the Wassa gold deposit SW Ghana title Geological setting of the Wassa gold deposit SW Ghana abstract Including past production current indicated and inferred resources Wassa is a 5 Moz poly deformed early orogenic gold deposit located on the eastern flank of the Ashanti Belt in southwest Ghana
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Journal of African Earth Sciences geology cz Today the most significant gold pro ducing country in the area is Ghana Hilson 2002a The earliest European attempts to extract gold on a large scale were concen trated in Tarkwa and Prestea regions in the late 19th century A gold rush in the early 20th century was followed by a mass in crease in gold production After Ghana gained
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PDF Geological setting of the Wassa gold deposit SW Ghana Geological setting of the Wassa gold deposit SW Ghana Article PDF Available in Ore Geology Reviews 78 · September 2015 with 1 386 Reads How we measure reads
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Golden Star Announces Drilling Results at its Wassa and Golden Star Resources Ltd NYSE American GSS TSX GSC GSE GSR Golden Star or the Company is pleased to announce that it has intersected significant gold mineralization 200 metres m down plunge to the south of the Inferred Mineral Resource at the Wassa Underground Gold Mine Wassa in Ghana demonstrating the extension of the deposit Drilling 85 km to the south at the
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The Wassa deposit A poly deformed orogenic gold system in The origin of gold for the paleoplacer deposit in southwest Ghana has long been debated Sestini 1973 Milesi et al 1991 Before robust age constraints were available Davis et al 1994 these paleoplacers were thought to be derived from Birimian type deposits such as those along the Ashanti Fault e g Obuasi However authors including Milesi et al 1991 pointed out some
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NI 43 101 TECHNICAL REPORT ON MINERAL RESOURCES The Wassa Hwini Butre Benso Gold Mine is a producing mine and hence considered an advanced project under NI 43101 guidelines The mine and its satellite operations are located in Ghana to the east of Tarkwa in the Western Region Golden Star Resources Ltd GSR currently holds a 90 interest in the subsidiary company Golden Star Wassa Limited
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wassa gold mine ghana deruigevelden nl Geological setting of the Wassa gold deposit SW Ghana 1 Exploration history The Wassa deposit is a multi million ounce Moz low grade orogenic gold system Historical production is over 1 Moz of gold and current indicated resources are around 29 Moz average grade of 206 g t Golden Star Resources Ltd 2014 Wassa has been an artisanal mining
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10 1016 j oregeorev 2015 09 024 DeepDyve Jun 11 2020· A second minor mineralization event M2w occurred in the Therefore the Wassa deposit represents a good example of an early Wassa deposit which locally remobilized and concentrated gold orogenic gold system in West Africa and suggests a potential for new along late structural fabrics and veins
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Intrusion related affinity and orogenic gold overprint at May 15 2019· The Bonikro gold deposit and satellite Hiré open pits are located at the southern tip of the Oumé Féttékro granite–greenstone belt in Côte d Ivoire Country rocks in the region have undergone polyphase deformation and prolonged arc magmatism during the Paleoproterozoic Eburnean orogeny Intrusive host rocks at Hiré and Bonikro have been dated at 2180 ± 6 and 2086 ± 4 Ma U–Pb on
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Journal of African Earth Sciences sation of the Wassa gold deposit SW Ghana The new age on the Wassa deposit is consistent with the possibility of an early gold mineralizing vent during the Eoeburnean phase at ca 2191e2158 Ma Regolith studies Arhin and Saeed 2015 Coupled geochemical and regolith mapping of units in complex regolith terrains of savannah re gions of NW Ghana
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Geological Companies In Ghana agriturismotorremozza it Geological setting of the Wassa gold deposit SW Ghana Geological setting of the Wassa gold deposit SW Ghana where many companies are actively mining and a significant geological data set has been Get Price Ghana ION Geophysical commences new 2D multi
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Geology of Ghana Wikipedia Gold plays an important role in the economy of Ghana with up to 1500 tons of gold produced throughout its history Ghana has five major types of gold deposits Native gold in steeply dipping quartz veins in shear zones at the margins of Birimian basins arsenopyrite in sulfur bodies disseminated mineralization in basin granitoid rocks and alluvial placer gold in river deposits in gravel are
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Spilpunt Ghana Apr 13 2007· Golden Star is also developing the Wassa deposit with proven and probable reserves of 21 9 million t at a grade of 1 34 g t Au or 940 000 oz gold In May 2007 the company announced the development of the Hwini Butre and Benso gold project as a satellite source of feed for the Wassa gold mine and which is expected to have a significant impact
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Mining industry of Ghana Wikipedia The Mining industry of Ghana accounts for 5 of the country s GDP and minerals make up 37 of total exports of which gold contributes over 90 of the total mineral exports Thus the main focus of Ghana s mining and minerals development industry remains focused on gold Ghana is Africa s largest gold producer producing 80 5 t in 2008
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Impacts of Surface Gold Mining on Land Use Systems in Mar 18 2011· Wassa West district and major gold deposits and mining concessions considered in Western Ghana adapted from Hirdes et al Land use has substantially altered the region s natural vegetation communities and today rainforest covers less than 20 of the district mostly within the Bonsa 210 km² Ekwumi 173 km² and Neung 158 km²
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Age constraints of the Wassa and Benso Mesothermal Gold Tshibubudze et al 2015 Parra Avila et al 2015 Constraints on the timing of mineralisation of the Wassa gold deposit SW Ghana The new age on the Wassa deposit is consistent with the
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Stefano Salvi – Géosciences Environnement Toulouse Velásquez G Carrizo D Salvi S Vela I Pablo M Pérez A 2020 Tracking cobalt REE and gold from porphyry copper deposits by LA ICP MS a geological approach towards metal selective mining in
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Gold Deposits of the Birimian and Tarkwaian in Ghana Gold Deposits of the Birimian and Tarkwaian in Ghana GUIDEBOOK SERIES Volume 57 April 22 – May 1 2018 Generalized regional geology of southwest Ghana Modified after BRGM 1 2M Geological Map of West Africa Cretaceous palinspastic reconstruction of the Guiana and south West Africa shields 3 1 3 Simplified geological map of
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