 | Salvi, S., Sangaré, A., Driouch, Y., Siebenaller, L., Béziat, 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,⁎, A. Sangaré 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 |  | 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 Baoulé-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 |  | Lebrun, Erwann, Thébaud, 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 – 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 |  | 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-Togbé 1966; Kirov and Boboé...Perma, Sarga and Sina-Issiré rivers in the Atacora region on the Natitingou sheet where they are continually...placers’ deposits described are located in the Atacora region on the Natitingou sheet. Moreover, two gold placer...with Pourra deposit in Burkina Faso and Kalana deposit in Mali (Melesi et al. 1989, 1992), with Taparko |  | | Journal (article/letter/editorial) | | microcline metavolcanite and mesocratic quartz-plagioclase gneiss at Ovala) after the development of the...microcline metavolcanite from Ovala. (b) Quartz-plagioclase gneiss from Ovala. (c) Partly carbonatized amphibolite...this alteration did not, however, affect the plagioclase gneiss containing the tourmaline-bearing gold...syngenetic DO) preconcentrations exist at Loulo in Mali (Milrsi et al., 1992), Dorlin in French Guiana (Milrsi...District Fazenda Maria Preta (Brazil) Loulo (Mali) - D 1 crustal thickening (in shallow domain) - |  | | Journal (article/letter/editorial) | | arid zone of northern Mali and the second one in a sub-humid zone in southern Mali. Finally, the background...south-eastern border of Senegal (Fig. 1). This region belongs to the Kédougou Kénieba Inlier (KKI)...part of the WAC, including the Kedougou-Kenieba region where they could be early Cretaceous (Michel, 1996)...microcline (potassic feldspar), 10–15 percent of plagioclase, 1–2 percent of muscovite and 1–2 percent of...land-atmosphere feedback. Because of this shift, the region of Saraya, which was sub-humid in the 1960s, is |  | Le Mignot, Elodie, Siebenaller, Luc, Béziat, Didier, André-Mayer, Anne-Sylvie, Reisberg, Laurie, Salvi, Stefano, Velasquez, Germán, Zimmermann, Catherine, Naré, 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) | | such as auriferous tourmalinites (e.g., Loulo in Mali), Fe(-Cu) deposits (e.g., Falémé in Sénégal) or...gold-bearing sulfide mineralization (e.g., Syama in Mali) and gold paleoplacers (referred to as Tarkwaian...al., 2011) and Loulo (Lawrence et al., 2013) in Mali. This paper presents results obtained during the... 15°N NIGER SENEGAL B) 3°W B) Ouagadougou MALI Dédougou BURKINA FASO GUINEA TO BENIN G 10°N...completed a new 1:50,000 lithostructural map of this region (Fig. 2) based on interpretation of high-resolution |  | | 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 d’Ivoire (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 9 Côte d’Ivoire 5 Senegal 5 Sierra...shield does indicate the high favorability of this region for concealed orogenic gold deposits. A hydrothermal |  | 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 Falémé 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) | | Falémé Fe Skarn and the Loulo Au Systems in Western Mali James S. Lambert-Smith,1,† Andrew Allibone,2 Peter...district in the KédougouKéniéba inlier in western Mali and eastern Senegal is one of the most richly endowed...district, Wona, Kona 12º Syama Siguiri Tongon Kalana Post-Paleoproterozoic rocks Gaoua Paleoproterozoic...of being separated by a terrane boundary (Senegal-Mali shear zone), which reopens the possibility that...FALÉMÉ Fe SKARN AND THE LOULO Au SYSTEMS, WESTERN MALI 1450N 5 km UTM 29N Gara RG10050 Balangouma Pluton |  | Le Mignot, Elodie, Reisberg, Laurie, André-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) | | 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...completed a new 1:50,000 litho-structural map of this region (Fig. 2) based on interpretation of high-resolution...of actinolite, chlorite, epidote, quartz, and plagioclase. In addition to the Nassara orogenic gold deposit |  | 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...metamorphic fluids, a “salting out effect”). 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...in southwest Mali. This highly gold productive/prospective region is known as the west Mali gold belt, |  | | Journal (article/letter/editorial) | | 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; Oberthür 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, Nyafé, Siou and Wona-Kona), a detailed...et al. (2011). These plutons are composed of plagioclase, K-feldspar (microcline), quartz and biotite |  | | 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 |  | | Report (issue) | | completely destroyed at the point where it crosses Kalana okuaiki Pali (fig. 6). Moreover, the overall pattern...exceeding 0.5 mm in diameter; microphenocrysts of plagioclase and pyroxene are very sparse. Modes of 10 specimens...sparsely through the rock, and no trace of plagioclase. Plagioclase was observed only in rocks containing...paragenesis of the main phases was olivine-pyroxene-plagioclase-opaques, the same order observed in the 1959...1.5 1.5 39.2 45.9 45.4 7 5 0.7 1 0 1.8 Plagioclase (Opaques ' 0.2 .. AQ n 52.9 Glass 99.1 Q7 |  | | Book | | plasma. To what extent these processes affect any region on earth depends on the processes involved, on...weak (consistent and poorly cohesive arenas), plagioclase remains intact whereas biotite and amphibole...arenization intensifies (friable arenas), the plagioclase grains are also affected, yielding high-charge...Boulet (1974), who described the replacement of plagioclase by calcite in weathering profiles developed on...replace111ent of plagioclase by calcite in a granite. Calcitic micrite (c) replaces plagioclase (F) whose made |
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