 | Ballo, Ibrahima, Hein, Kim A.A., Guindo, Boukary, Sanogo, Lassana, Ouologuem, Yalema, Daou, Gaoussou, Traore, Amadou (2016) The Syama and Tabakoroni goldfields, Mali. Ore Geology Reviews, 78. 578-585 doi:10.1016/j.oregeorev.2015.10.019 | Journal (article/letter/editorial) | | The syama and tabakoroni goldfields, Mali Ibrahima Ballo, Kim A.A. Hein, Boukary Guindo...Daou, Gaoussou, Traore, Amadou, The syama and tabakoroni goldïŹelds, Mali, Ore Geology Reviews (2015), doi:...pertain. ACCEPTED MANUSCRIPT The Syama and Tabakoroni goldfields, Mali Ibrahima BALLOa; Kim A.A. HEINb;...Des Mines de Syama (SOMISY SA) Rue 50, Porte 688; BP-E 1582 Bamako, SC R Badalabougou, Mali: ibrahimab@somisy... MA Abstract Gold deposits in the Syama and Tabakoroni goldfields in southern Mali occur along a north-northeast |  | | Journal (article/letter/editorial) | | alteration and subsequent supergene oxidation in Goldfield, Nevada. The results indicate that pervasive weathering...present in the oxidation zones of ore deposits, acid mine drainages, hydrothermal ore deposits, hot springs...dating from two weathering profiles, Goldfield, Nevada, and Syama, Mali (West Africa). RENEWEDINTERESTin...time-space evolution of weathering processes. In Goldfield, Nevada, jarosite and alunite are often present...degassing step. GOLDFIELD JAROSITE ANALYSES: SAMPLES 2676 J 2677 13372 The first site, Goldfield, NV (Fig. |  | Cindy, , Sakai, Ryotaro, Mendoza, Diego M., Konadu, Kojo T., Sasaki, Keiko (2021) Significance of Acid Washing after Biooxidation of Sulfides in Sequential Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali. Minerals, 11 (12) 1316 doi:10.3390/min11121316 | Journal (article/letter/editorial) | | Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali Cindy, Ryotaro Sakai, Diego M. Mendoza...pretreatment of double refractory gold ores (DRGO) to improve gold recovery without emitting pollutant...evaluated using a real double refractory gold ore from the Syama mines, Mali, which includes 24 g/t of Au and...the acid washing process significantly improved gold recovery by cyanidation to yield to 84.9 ± 0.7%...of carbonaceous matter prior to the extraction of gold; however, the details should be modified depending |  | Salvi, S., SangarĂ©, A., Driouch, Y., Siebenaller, L., BĂ©ziat, 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) | | com/locate/oregeorev The Kalana vein-hosted gold deposit, southern Mali S. Salvi a,â, A. SangarĂ© b,c, Y. Driouch...3503 Av. Al Qods Hippodrome, BP 2699 Bamako, Mali d Avnel Gold Mining Limited, 39 Cheval Place, London SW7...veins Arsenopyrite Gold Late-orogenic Late-tectonic a b s t r a c t The Kalana gold deposit occurs within...domain of the West African Craton, in the south of Mali. These formations are intruded successively by small...gently dipping thrust faulting. Two episodes of gold precipitation are recognized: a ïŹrst episode, during |  | Olson, Steven F., Diakite, Kassoum, Ott, Lawrence, Guindo, Ambogo, Ford, Christopher R. B., Winer, Nicholas, Hanssen, Eric, Lay, Nilda, Bradley, Robin, Pohl, Demetrius (1992) Regional setting, structure, and descriptive geology of the middle Proterozoic Syama gold deposit, Mali, West Africa. Economic Geology, 87 (2) 310-331 doi:10.2113/gsecongeo.87.2.310 | Journal (article/letter/editorial) | | andDescriptiveGeologyof the Middle ProterozoicSyamaGold Deposit,Mali, West Africa STEVEN F. OLSON,* KASSOUM DIAKITE,...DEMETRIUS POHL* BHP-UtahMali, Inc., B.P. 2856, Bamako,Mali Abstract The Syamagold depositlies in a Birimian(2...Birimian(2.0-2.2 Ga) greenstonebelt in southernMali. Gold mineralizationis hostedby a thin (0.5-2.0 km) but...veinlets,andbrecciabodies.Pyriteis the principal gold-bearingmineral and occursdisseminatedin veinlet...ankerite,albite,andsericitealterationin the pyritic gold-bearingzones.Silica, Na20, Au, COe, S, and C havebeen |  | KĆĂbek, Bohdan, SĂœkorovĂĄ, Ivana, MachoviÄ, VladimĂr, KnĂ©sl, Ilja, Laufek, FrantiĆĄek, ZachariĂĄĆĄ, JiĆĂ (2015) The origin and hydrothermal mobilization of carbonaceous matter associated with Paleoproterozoic orogenic-type gold deposits of West Africa. Precambrian Research, 270. 300-317 doi:10.1016/j.precamres.2015.09.017 | Journal (article/letter/editorial) | | matter associated with Paleoproterozoic orogenic-type gold deposits of West Africa Bohdan KrÌĂbek a,â , 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...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-ïŹll veins associated with B. KrÌĂbek |  | | Journal (article/letter/editorial) | | West Africa: The Worldâs Premier Paleoproterozoic Gold Province* Richard J. Goldfarb,1, 2,â Anne-Sylvie...approximate 10,000-metric ton (t) gold endowment, is one of the worldâs 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 |  | | Journal (article/letter/editorial) | | Bystrinskoe Cu-Au-Fe deposit (Eastern Trans-Baikal Region): Russiaâs first example of a skarn-porphyry ore-forming...Abramov, G.D. Kiseleva, and T.L. Krylova Formation of gold mineralization in ultramafic alkalic magmatic complexesâI...geochemistry of the major host rock of the Dongâan gold deposit, Lesser Khingan Range: Implications for...altered diorite porphyry from the Biely Vrch porphyry gold deposit (Slovakia)â Peter BacÌĂk, Peter KodeÌra...TurkeyâGĂŒllĂŒ Kirat and Nasuh Aydin 173 Multistage gold mineralization in the Wa-Lawra greenstone belt, |  | | Journal (article/letter/editorial) | | geology, metallogenesis and prospectivity of several gold deposits from the Archaean and Palaeoproterozoic...in northeast Burkina Faso and Ansongo Inlier of Mali. The monograph is led by Markwitz et al. who summarize...portfolio of the West African craton and contextualize gold, iron-oxide coppergold, iron ore, aluminium, diamond...Markwitz et al., 2015). Unfortunately many of the non-gold mineral occurrences/deposits, their exploration...MilĂ©si et al., 1989; BĂ©ziat et al., 2008 on regional gold metallogenesis; Nyame et al., 2002; Beauvais et |  | | Journal (issue) | | INNOVATOR 12 Sustainable social transitioning at mine closure starts with a paradigm shift 28 Staying...STORY With such a strong presence in the DRC, the region remains a top priority for the company, where in...processes, it has achieved significant success with its gold reagent range and improved flocculants and coagulants...Stubbs reveals. anchoring itself properly in the region, which it did The work Axis House is currently...The companyâs gold reagent range, 4 Gold, was successfully trialled and applied at a gold operation in |  | Parra-Avila, Luis A., Belousova, Elena, Fiorentini, Marco L., Baratoux, Lenka, Davis, James, Miller, John, McCuaig, T. Campbell (2016) Crustal evolution of the Paleoproterozoic Birimian terranes of the BaoulĂ©-Mossi domain, southern West African Craton: UâPb and Hf-isotope studies of detrital zircons. Precambrian Research, 274. 25-60 doi:10.1016/j.precamres.2015.09.005 | Journal (article/letter/editorial) | | main detrital zircons populations across southern Mali. 4 ï·ï Population A correlates to known magmatic...stretched across southern Mali over 40 000 km2 between the Yanfolila (west) 17 and Syama (east) belts, from...3 of 81 unknown source as no rock unit in the region has been identified to yield similar Archean 34...recognized. The identification of Archean zircons in the region argues 38 for greater interaction between the...southern West Africa Craton, BaoulĂ©- 42 Mossi domain, Mali 43 1 Introduction M an us cr ip t 33 The |  | Parra-Avila, Luis A., Kemp, Anthony I.S., Fiorentini, Marco L., Belousova, Elena, Baratoux, Lenka, Block, Sylvain, Jessell, Mark, Bruguier, Olivier, Begg, Graham C., Miller, John, Davis, James, McCuaig, T. Campbell (2017) The geochronological evolution of the Paleoproterozoic BaoulĂ©-Mossi domain of the Southern West African Craton. Precambrian Research, 300. 1-27 doi:10.1016/j.precamres.2017.07.036 | Journal (article/letter/editorial) | | westernmost 51 portion when compared to the easternmost region. In addition, the new U-Pb data identify 52 ... some of the oldest felsic intrusions in the region, including a granite from Burkina Faso (2265 53...southern Mali. This study also reveals 54 inherited Archean zircon cores from across southern Mali. The...74 of involvement of older Archean crust in a region that is regarded to be the result of juvenile ...Nonetheless, most of 80 these studies are the result of mine-scale to belt-scale mapping projects, in many cases |  | Ouiya, Pascal, Siebenaller, Luc, Salvi, Stefano, BĂ©ziat, Didier, Naba, SĂ©ta, Baratoux, Lenka, NarĂ©, 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 |  | | 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 IOCGâs, 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 earthâs crust. The pre-Eburnean or Tangaean-...EoEburnean-Eburnean I Event yielded gold, and the major Eburnean Orogeny yielded gold, 40 iron ore, manganese |  | Milïżœsi, 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) | | metallogenic relationship between BMmian and Tarkwaian gold deposits in Ghana J.P. Mil~si 1, p. Ledru 1, p....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...has shown that the NE-SW faults controlling the Gold Coast Range shear-zone mineralization (Ashanti-Prestea)...by the development of quartz veinlets and native gold; thus the shear-zone mineralization could only have |  | | Journal (article/letter/editorial) | | Morphology and electron-probe microanalysis of residual gold-grains at Dimako, Southeast Cameroon C. E. Suh,...Morphology and electron-probe microanalysis of residual gold-grains at Dimako, Southeast Cameroon. â N. Jb. Miner...residual gold in the area around Dimako, Southeast Cameroon, are studied for the first time. The gold occurs...blanket. The saprolite studied has 37 ± 22 ppm Au. The gold grains are irregular and dendritic in the deeper...rounded, blunt, smooth and pitted up the profile. Gold grains from all horizons show remarkable core-to-rim |  | Lawrence, D.M., Allibone, A.H., Chang, Z., Meffre, S., Lambert-Smith, J.S., Treloar, P.J. (2017) The Tongon Au Deposit, Northern CĂŽte dâIvoire: An Example of Paleoproterozoic Au Skarn MineralizationâŒ. Economic Geology, 112 (7) 1571-1593 doi:10.5382/econgeo.2017.4522 | Journal (article/letter/editorial) | | change from white- to green-colored skarn. Spatially, gold-rich stage 3 alteration coincides with stage 2 intermediate...Au mineralization in southwest Ghana and western Mali. Dating provides further evidence that Au mineralization...a variety of different processes. Introduction Gold, rather than base metals, is the principal metal...the Boundiali belt 80 km to the west, with the Syama Au deposit located on its western margin (Olson...major curved reverse faults during a period of region-wide contractional deformation (e.g., Twiss and |  | | Journal (issue) | | | ISSUE 2 2021 THE MINING VALUE CHAIN: STEP 2 â MINE & MOVE Issue 2 | 2021 www.miningreview.com HOT...diamond-rich Karowe mine in Botswana from an open pit operation to an underground mine. Roxgold readies...readies SĂ©guĂ©la for 2022 gold production Despite the challenges posed by the COVID-19 pandemic, the company...Mines advances the historic Kipushi mine towards production The mine could rank among the worldâs largest...to adopt green energy, where feasible ENHANCING MINE PERFORMANCE 76 Tech-driven training creates safer |  | | 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 KĂ©nĂ©maâMan and Reguibat Shields during the Neo-Archean. The majority of gold, porphyry...Isolated occurrences of IOCG's as well as copperâgold 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...et al. (2015). The main commodities include (1) gold as orogenic, intrusionrelated, skarn-hosted, porphyry-hosted |  | | Journal (issue) | | 66 LEADING DEVELOPMENTS Kirkland Lake Gold Buys Detour Gold.............................................................6 Osisko Gold Completes Acquisition of Barkerville Gold Mines...........................7 Lucara Going Underground at Karowe Diamond Mine........................................8 AROUND...DorĂ© Bar at Gold Road Mine........ 12 Asia: Centerra Gold Suspends Operations at Kumtor Mine.............000 Visitors........... 17 Latin America: Lundin Gold Inaugurates Fruta del Norte Project............ |  | McFarlane, C. R. M., Mavrogenes, J., Lentz, D., King, K., Allibone, A., Holcombe, R. (2011) Geology and Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali. Economic Geology, 106 (5) 727-750 doi:10.2113/econgeo.106.5.727 | Journal (article/letter/editorial) | | Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali CHRISTOPHER R.M. MCFARLANE,1,â JOHN MAVROGENES...Morila gold mine, hosted within Paleoproterozoic Birimian volcano-sedimentary rocks of southeast Mali, is...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 (issue) | | 2 1 NEW VOLVO TRUCKS Made for Mines Gold Fields Goes for Gold South Deep Solar Project Demand & Supply..............37 PUMPS & VALVES The measure of the mine...................................................ever-increasing costs of electricity. In South Africaâs case, mine operations have had to bear the brunt of power cuts...applied as fuel cell technology at the points on the mine where it is needed most. This revolutionises the... load and haul services, as well as on- and off-mine equipment. âIn addition, weâre looking to partner |  | | Journal (article/letter/editorial) | | The Loulo gold and tourmaline-bearing deposit A polymorph type in the Early Proterozoic of Mali (West Africa)...Nationale de la G6ologieet des Mines, B.P. 223, Bamako, Mali Received: April 2, 1991/Accepted: June 3, 1992 Abstract...Abstract. The stratabound polymorph Loulo gold deposits and occurrences were discovered in sedimentary...Proterozoic Birimian Formation, in the K6ni6ba region of SW Mali. Early work showed reserves in the Loulo-0...Loulo-0 and Loulo-3 deposits of 28 t of gold in ore averaging 4.43 g/t Au, to depths of 140 m; recent drilling |  | | Journal (issue) | | long history. Recently and sadly, Europe's last tin mine at South Crofty at Camborne closed, probably for...Pendarves Estate for part of the South Condurrow mine which is still used today as one of CSM's underground...engineering degrees has been the introduction of a mine and quarry engineering degree. This programme has...Phillips GWENNAP (CORNWALL) PARISH COUNCIL BUYS FORMER MINE The offer by Gwennap Parish Council to buy the site...the surface and underground parts of Snailbeach Mine. The other includes various jobs associated with |  | | Report (issue) | | SAHARA CAPE VERDE ISLANDS EGYPT LIBYA MAURITANIA MALI NIGER ERITREA CHAD Khartoum* SUDAN ETHIOPIA... 87 Malawi . . . . . . . . . . . . . . . . . 93 Mali . . . . . . . . . . . . . . . . . . . 97 Mauritania...of diversified experience in mineral exploration, mine design, development, and operations, as well as...western United States. Much of his work has involved gold deposits. Since joining the Bureau in 1988, he has...production in 1993, were diamond, cobalt, chromite, gold, phosphate rock, manganese ore, uranium and petroleum |
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