 | 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) | | elsevier.com/locate/oregeorev The Kalana vein-hosted gold deposit, southern Mali S. Salvi a,â, A. SangarĂ© b...Exploration, 3503 Av. Al Qods Hippodrome, BP 2699 Bamako, Mali d Avnel Gold Mining Limited, 39 Cheval Place, London...Late-orogenic Late-tectonic a b s t r a c t The Kalana gold deposit occurs within metamorphosed Paleoproterozoic...domain of the West African Craton, in the south of Mali. These formations are intruded successively by small...native bismuth. All evidence suggests that the Kalana deposit represents orogenic gold mineralization |  | | Journal (article/letter/editorial) | | 1970), of which the most important is the Ghanian region, where the universally known Ashanti-Obuasi and...importance is the Mali-Cuinean region, a large part of which is located within the Repub lic of Mali. Characteristic...granites" of Bodin). The youngest rocks in the region are the Hercynian igneous rocks of the trap association...is developed at the surface every where in the region. All the known deposits and shows of gold in this...metamorphic rocks within the Mali por tion of the Mali-Guinean region, the following metallogenic units |  | 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) | | termination of the Boromo Belt. Gold is associated with pyrite and other Fe-bearing minerals that occur disseminated...occurrence where gold is associated to disseminated pyrite along quartz veins. © 2015 Elsevier B.V. All rights...mode (BSE) at an acceleration voltage of 20 kV. Pyrite crystals were analyzed for major element composition...assemblage of albite, chlorite, ankerite, quartz and pyrite (Figs. 5, 6b). This alteration is particularly...(SEM) image in backscattered mode (BSE) showing a pyrite crystal grown at the expense of a rutileâankerite |  | EENSAAR, JAAN, PANI, TĂNU, GAĆ KOV, MIKK, SEPP, HOLAR, KIRSIMĂE, KALLE (2017) Stable isotope composition of hypogenic speleothem calcite in Kalana (Estonia) as a record of microbial methanotrophy and fluid evolution. Geological Magazine, 154 (1) 57-67 doi:10.1017/s0016756815000928 | Journal (article/letter/editorial) | | composition of hypogenic speleothem calcite in Kalana (Estonia) as a record of microbial methanotrophy...â Aeronian (Silurian Period) carbonate rocks in Kalana quarry in central Estonia contain cave and fracture...mineralization of sulphur-bearing minerals, such as pyrite and abundant barite. Unlike that of speleothem...low-temperature hydrothermal fluid. Calcite speleothems in Kalana possibly developed at the mixing front of sulphate-rich...Aeronian (Silurian Period) carbonate rocks exposed in Kalana quarry, central Estonia (Fig. 1), contain small-size |  | | Journal (article/letter/editorial) | | deposits discovered, delineated and 62 developed in Mali, Mauritania, Senegal, Burkina Faso, Ghana and Cote...Ma in the KĂ©dougou-KĂ©niĂ©ba Inlier in Senegal and Mali (Dioh et al., 2006), and 2181 172 - 2117 Ma in...1) crops out over 16 000 km2 in Senegal and 180 Mali, and is interpreted as the product of accretion...presence of the volcanic rocks in 247 the Dakar region indicates that magmatic activity, with concomitant...there are a number in Ghana, Burkina Faso and 260 Mali that formed before the Eburnean Orogeny (Tangaean |  | Lebrun, Erwann, Miller, John, ThĂ©baud, Nicolas, Ulrich, Stanislav, McCuaig, T. Campbell (2017) Structural Controls on an Orogenic Gold System: The World-Class Siguiri Gold District, Siguiri Basin, Guinea, West Africa. Economic Geology, 112 (1) 73-98 doi:10.2113/econgeo.112.1.73 | Journal (article/letter/editorial) | | basin covers about 40,000 kmÂČ in Guinea and adjacent Mali. It consists of upper Birimian sedimentary, volcaniclastic...the east, the Siguiri basin is bordered by the Yanfolila granite-greenstone belt, which consists of volcaniclastic...dextral transpressive environment. The Siguiri region has been long recognized for its endowment and...KĂ©dougou-KĂ©niĂ©ba Inlier Study area A 0° 5°W MALI BURKINA FASO GUINEA BENIN 10°N SIERRA LEONE...LĂ©ro Volcanosed. / Siguiri Basin B 9°W 12°N MALI Tarkwaian / Tarkwa-like sed. Conglomerates 300 |  | | Journal (article/letter/editorial) | | deposit A polymorph type in the Early Proterozoic of Mali (West Africa) A. Dommanget 1, J.P. Mil~si 1, and...Nationale de la G6ologieet des Mines, B.P. 223, Bamako, Mali Received: April 2, 1991/Accepted: June 3, 1992 Abstract...Proterozoic Birimian Formation, in the K6ni6ba region of SW Mali. Early work showed reserves in the Loulo-0...occurs as: (a) pre-D1 (deformation) disseminated pyrite with micron-size inclusions of gold particles;...the sulphides is small (10-40 gm), and occurs at pyrite-crystal edges, filling cracks and/or as inclusions |  | Adjo, Fatchessin Bruno, Bolarinwa, Anthony Temidayo, Adissin Glodji, Luc, Dongmo, Franck Wilfried Nguimatsia, Olajide-Kayode, Jerry Olugbenga (2019) A review of the current state of knowledge on gold mineralisation in Benin Republic, West Africa. Applied Earth Science, 128 (1) 2-14 doi:10.1080/25726838.2018.1556503 | Journal (article/letter/editorial) | | countries (Pourra deposit in Burkina Faso and Kalana deposit in Mali) which are characterised by epigenetic...extracted from the Perma placer in the Atacora Region (Chermette and Olori-TogbĂ© 1966; Kirov and BoboĂ©...Perma, Sarga and Sina-IssirĂ© rivers in the Atacora region on the Natitingou sheet where they are continually...placersâ deposits described are located in the Atacora region on the Natitingou sheet. Moreover, two gold placer...Gold of the Perma deposit is often associated with pyrite (FeS2), chalcopyrite (CuFeS2), galena (PbS), sphalerite |  | | Journal (article/letter/editorial) | | a number of deposits in Ghana, Burkina Faso and Mali that formed before the Eburnean Orogeny during a...Mauritania), mineral sands, iron ore (e.g., Nioro in Mali and Sassandra in Cote d'Ivoire), aluminium ore (e...Pipe in Sierra Leone) and gold (e.g., Yatela in Mali) (Markwitz et al., 2015; and references therein)...including maïŹc-intermediate volcanics (e.g., Syama in Mali), granitoids (e.g., Dokrupe in Ghana: Yao et al...Lebrun et al., in press â this volume); Kalana in southern Mali; Sabodala in the KKI of Senegal; Bepkong |  | Lebrun, Erwann, ThĂ©baud, 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) | | Exploration Technical Hub â Continental Africa Region, 44 St George Terrace, Perth, WA 6000, Australia...Basin (Guinea), about 200 km south-west of Bamako in Mali and 150 km north of Kankan (Steyn, 2012; Lebrun...drafting of a new geological map for this critical region. The results of this study enhance our understanding...domain, which covers western 137 Guinea, southern Mali, most of Burkina Faso, western Niger, south-east...calc-alkaline 2212 ± 6 Ma Niani suite and by the Yanfolila greenstone belt, composed of an intercalation |  | | Journal (article/letter/editorial) | | metadacite) Exhalativehydrothermal event with adularia-pyrite (barren of gold) EBURNEAN PHASE D3 EBURNEAN PHASE...and (or) quartz veins, contain, ing pyrrhotite-pyrite + sphalerite and native gold; the same sulphides...with a dominant sulphide paragenesis of pyrrhotite-pyrite-gold; the coexistence of pyrrhotite-pentlandite...dolomite - tourmaline - allanite and pyrrhotite - pyrite molybdenite - Bi telluride native gold - w e a...barren of gold - disseminations of chalcopyrite - pyrite - gold, associated with chlorite-rich zones - development |  | Dabo, Moussa, AĂŻfa, Tahar, Miyouna, TimothĂ©e, Abdoul Diallo, Diery (2016) Gold mineralization paragenesis to tectonic structures in the Birimian of the eastern DialĂ©-DalĂ©ma Supergroup, KĂ©dougou-KĂ©niĂ©ba Inlier, Senegal, West African Craton. International Geology Review, 58 (7) 807-825 doi:10.1080/00206814.2015.1123121 | Journal (article/letter/editorial) | | assemblages are mainly composed of quartz + chlorite + pyrite and ± gold. Haematite and arsenopyrite are added...assemblage is composed of quartz + carbonate + pyrite + chalcopyrite and ± gold. Pyrrhotite appears in...is correlated with the abundance of sulphides (pyrite, chalcopyrite, arsenopyrite), and sulphide stockworks...two-thirds of the eastern Man shield (Guinea, southern Mali, Ivory Coast, Ghana, Burkina Faso, southwestern...KĂ©dougou-KĂ©niĂ©ba inliers (KKI) in Mali, and they straddle the border between Mali and Senegal (MilĂ©si et al. |  | Lambert-Smith, James S., Allibone, Andrew, Treloar, Peter J., Lawrence, David M., Boyce, Adrian J., Fanning, Mark (2020) Stable C, O, and S Isotope Record of Magmatic-Hydrothermal Interactions Between the FalĂ©mĂ© Fe Skarn and the Loulo Au Systems in Western Mali. Economic Geology, 115 (7). 1537-1558 doi:10.5382/econgeo.4759 | Journal (article/letter/editorial) | | FalĂ©mĂ© Fe Skarn and the Loulo Au Systems in Western Mali James S. Lambert-Smith,1,â Andrew Allibone,2 Peter...values (ÎŽ13C: â3.1 to 1.3â° and ÎŽ18O: 19.1 to 23.3â°). Pyrite from Kofi series Au prospects adjacent to the FalĂ©mĂ©...similar to pyrite from the Karakaene Ndi skarn (2.8 to 11.9â°), whereas ÎŽ34S values of pyrite and arsenopyrite...district in the KĂ©dougouKĂ©niĂ©ba inlier in western Mali and eastern Senegal is one of the most richly endowed...district, Wona, Kona 12Âș Syama Siguiri Tongon Kalana Post-Paleoproterozoic rocks Gaoua Paleoproterozoic |  | Le Mignot, Elodie, Reisberg, Laurie, AndrĂ©-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) | | each deposit, and dated by the Re-Os method on pyrite, arsenopyrite, and pyrrhotite grains that were...production of Ghana, which was the main gold-producing region in Africa before the discovery of the Witwatersrand...Essakhane NIGER Inata Yatela Sadiola SENEGAL Loulo MALI Siguiri GUINEA Syama Kiaka Poura HO BO Fig...Gaoua BA SF 10°N Ouagadougou Wona-Kona Morila Kalana GO BURKINA FASO Nassara BENIN TO G LW O...the Re-Os isotope system, focusing on sulfides (pyrite, arsenopyrite) that are petrographically associated |  | | Journal (article/letter/editorial) | | and the largest Paleoproterozoic gold-producing region. The gold resources are concentrated within the...deposits are located in greenstone belts in Ghana, Mali, Senegal, Burkina Faso, Cote dâIvoire (or Ivory...significance of the gold mineralization within this region. With an endowment of >2,500 t Au, the Obuasi deposit...(Mt) Grade (g/t) Au (t) Ghana 16 Burkina Faso 12 Mali 12 Guinea â9 CĂŽte dâIvoire â5 Senegal â5 Sierra...shield does indicate the high favorability of this region for concealed orogenic gold deposits. A hydrothermal |  | Le Mignot, Elodie, Siebenaller, Luc, BĂ©ziat, Didier, AndrĂ©-Mayer, Anne-Sylvie, Reisberg, Laurie, Salvi, Stefano, Velasquez, GermĂĄn, Zimmermann, Catherine, NarĂ©, Athanase, Franceschi, Guy (2017) The Paleoproterozoic Copper-Gold Deposits of the Gaoua District, Burkina Faso: Superposition of Orogenic Gold on a Porphyry Copper Occurrence?. Economic Geology, 112 (1) 99-122 doi:10.2113/econgeo.112.1.99 | Journal (article/letter/editorial) | | associated with early arsenic-poor and gold-free pyrite. The geochemistry of the plutonic rocks and associated...a second generation of sulfides, with the later pyrite hosting visible gold and minor chalcopyrite that...compositions rich in Ag, As, Au, Bi, Cu, and Pb. Pyrite with this signature was only observed in local...2165 ± 24 Ma based upon Re-Os dating of the early pyrite; the age of the younger gold event, which is similar...such as auriferous tourmalinites (e.g., Loulo in Mali), Fe(-Cu) deposits (e.g., FalĂ©mĂ© in SĂ©nĂ©gal) or |  | Lawrence, D. M., Treloar, P. J., Rankin, A. H., Boyce, A., Harbidge, P. (2013) A Fluid Inclusion and Stable Isotope Study at the Loulo Mining District, Mali, West Africa: Implications for Multifluid Sources in the Generation of Orogenic Gold Deposits. Economic Geology, 108 (2) 229-257 doi:10.2113/econgeo.108.2.229 | Journal (article/letter/editorial) | | Stable Isotope Study at the Loulo Mining District, Mali, West Africa: Implications for Multifluid Sources...Moz resource), in the Birimian terrane of western Mali, contains a range of mineralogically diverse styles...ore assemblages consisting of abundant nickeloan pyrite, (REE)-phosphates, Ni ± Co ± Pb ± Zn minor/trace...metamorphic fluids, a âsalting out effectâ). Introduction MALI is the second leading gold producing country in...craton (inset Fig. 1). In southern Mali, the Morila, Syama, and Kalana deposits are situated within the |  | | 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...:ifiecl) Cobalt, Alumi- Cbromite Ccment Dum mine, Co CODtent (tooa) Algeria 6,400 Angola '250...Cote d'Ivoire ·soo âą15 16,000 180 Gaboo 175 mine, u,o. Zn content cootent 432,400 2 192 4 |  | | Journal (article/letter/editorial) | | strong silicification (Si4MD) with disseminated pyrite and arsenopyrite along the Wona-Kona shear zone...many orogenic gold deposits, especially in Ghana, Mali and Burkina Faso, with the latter being the third...al., 2013a and b; Masurel et al., 2017a and b for Mali; OberthĂŒr et al., 1994; Allibone et al., 2002a and...formation can be individualized relative to local or region-scale structural features, hence providing exploration...of regional geophysical data. For each open pit mine (Fofina, NyafĂ©, Siou and Wona-Kona), a detailed |  | | Book | | metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea. Originally...the setting and origin of major deposits in the region, together with information on tonnages and grades...reduced granitoid-hosted gold mineralization in Mali, and present fluid inclusion and stable isotope...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron...Rare-Metal Deposits A Review of Gold Mineralization in Mali . . . . . . . . . . . . . . . . . . 327 David M |  | | Journal (issue) | | Cleveland-Cliffs Idles Northshore Mining, Tilden Mine..............8 Latin America: Barrick Acquires Interest...Abitibi region, which includes the LaRonde Complex, the Goldex mine and the Canadian Malartic mine (50%...gold mining operation in Guyana, the Aurora gold mine. At the same time, Silvercorp and Guyana Goldfields...designated for ongoing operations at the Aurora gold mine. âWith the addition of Aurora to our growing...more rock to produce less gold. The Aurora open-pit mine fell behind on waste stripping. Guyana Gold tried |  | | Book | | plasma. To what extent these processes affect any region on earth depends on the processes involved, on...also found in the Ifni granite of the Anti-Atlas region, Morocco, for instance. First case: calcite replaces...barite in certain Parna soi ls of the Murrumbidgee region, New South Wales.Aust JSci 20:274- 275 Bech J,...mulations calca ires dans les limons de Matmata de la region de Ga bes en Tunisie.Sci Geol Bull (Strasb) 37:387-398...original and degraded bauxites of the Porto Trotnbetas mine (Brazil) d erived from weathering of sediments |  | | Report (issue) | | highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones â for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever youâre mining, wherever youâre mining, mine it on Bridgestones. iaaseinn Money â BRIDGE STONE...Lesotho Liberia Luxembourg Madagascar Malawi Malaysia Mali Mauritania Mexico Morocco Mocambique Nepal New |  | | Book | | and tectonics, perhaps because a rigid mass of pyrite (foolâs gold) crystallized within their remains...type may not indicate that they were living in the region, but just document that they were preservable under...water faunas were able to invade the shallowâ water region only when the seaâlevel rose and then replaced...Canada and the faunas of the Iapetus/Rheic Ocean region, but this diminished subsequently (Lenz et al....shallowâwater region of the Yangtze Platform, but is present in the deeperâwater region of the Jiangnan |
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