 | | 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 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 |  | Ouiya, Pascal, Siebenaller, Luc, Salvi, Stefano, Béziat, Didier, Naba, Séta, Baratoux, Lenka, Naré, 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) | | inclusions of quartz, albite, rutile, ankerite and muscovite (Py1, Fig. 6a, c); the second generation, Py2...reported by Baratoux et al. (2015) for the whole Gaoua region. D1NA corresponds to D1Ga which is interpreted...(Perrouty et al., 2012). This event affected the Gaoua region mostly between ~ 2170 Ma and ~ 2140 Ma (Baratoux...2015; in Mali: Loulo, Lawrence et al., 2013; Tabakoroni– Tellem, Traoré et al., 2015; Kalana, Salvi et...1997; Burkina Faso: Taparko, Bourges et al., 1998; Mali: Loulo, Lawrence et al., 2013). In most of these |  | | Journal (article/letter/editorial) | | Bystrinskoe Cu-Au-Fe deposit (Eastern Trans-Baikal Region): Russia’s first example of a skarn-porphyry ore-forming...oxidized and reduced granitoids from the Uetsu region, NE Japan— Yuya Izumino, Teruyuki Maruoka, and...Huong Ngo 69 Zircon U-Pb, molybdenite Re-Os and muscovite Ar-Ar isotopic dating of the Xitian W-Sn polymetallic...Nikolay Petrov The Syama and Tabakoroni goldfields, Mali—Ibrahima Ballo, Kim A.A. Hein, Boukary Guindo, Lassana...mineralization along the Syama corridor, southern Mali (West Africa)—Yollande Dasso Traoré, Luc Siebenaller |  | | Journal (article/letter/editorial) | | deposits discovered, delineated and 62 developed in Mali, Mauritania, Senegal, Burkina Faso, Ghana and Cote...Ma in the Kédougou-Kéniéba 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 |  | 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...(Cu3CO3(OH)2); and gangue minerals such as quartz, muscovite, chlorite and carbonate (Kirov et al. 1976; Kirov |  | | 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...is not high in Mali (2500 kg in 1989), and mostly comes from the underground Kalana mine (in operation...operation since 1986), the Syama mine (opened in 1990) and small 'cottage' operations. Two areas, at Kangaba (left |  | Dabo, Moussa, Aïfa, Tahar, Miyouna, Timothée, Abdoul Diallo, Diery (2016) Gold mineralization paragenesis to tectonic structures in the Birimian of the eastern Dialé-Daléma Supergroup, Kédougou-Kéniéba Inlier, Senegal, West African Craton. International Geology Review, 58 (7) 807-825 doi:10.1080/00206814.2015.1123121 | Journal (article/letter/editorial) | | two-thirds of the eastern Man shield (Guinea, southern Mali, Ivory Coast, Ghana, Burkina Faso, southwestern...Kédougou-Kéniéba inliers (KKI) in Mali, and they straddle the border between Mali and Senegal (Milési et al....2011), Ghana (Feybesse et al. 2006), Guinea, and Mali (Feybesse et al. 1989). The metamorphism relative...mineralization hosted in tourmalinized turbidites (Loulo, Mali); Type 2: mineralization with disseminated sulphides...volcanic or plutonic rocks (Yaouré, Ivory coast; Syama, Mali); Type 3: gold-bearing conglomerates (district of |  | | 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)...10–15 percent of plagioclase, 1–2 percent of muscovite and 1–2 percent of biotite (Ndiaye, 1994). The...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 |  | 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...to be Eoeburnean, and to have affected the Gaoua region from ~2170 to 2140 Ma (Baratoux et al., Table |  | | Journal (article/letter/editorial) | | gold event recorded as free gold associated with muscovite in brittle fractures developed in competent orebodies...~2022 Ma, the age obtained from Ar-Ar datation of muscovite-schists at the Wona-Kona deposit. Our main contribution...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 |  | | 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 |  | 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, |  | | 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) | | bicolored tounnaline (12.90 ct), all from the Himalaya mine (California). Thestones were faceted by PalaInteri~ntional...red variety. GEMS & GEMOLOGY Spring 1985 3 region; discussion of the Governador Valadares district...the Virgem da Lapa group, thc Salinas mine, and the Ouro Fino mine are especially noteworthy and are described...geological development of the pegmatites of this region, the terminology used to describe these gem deposits...inselbergs, that are characteristic of this pegmatite region (figure 3). Pegmatite mines in this district were |  | | Book | | plasma. To what extent these processes affect any region on earth depends on the processes involved, on...stable aluminosilicates (i.e. K-feldspars and muscovite). Weathering is considered to be massive when...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 |  | | Book (volume) | | 1-81 USE Trial, Interstate 80 USE region antigens region associated antigens Immunogenetics USE...Interstate 10 USE I-liu ti-ch‘U (China) Region (China) Region (China) I-meng feng (China) I USE I-liu...(Microprocessor) USE Intel 1750 (Microprocessor) 1-5 USE Region (China) UF 1-495 (Md. and Va.) USE Capital Beltway... (111.) UF I-liu Blue Route (Pa.) (China) Region (China) 2893 laka language USE Yaka language...celebrations, Idaho National Engineering Laboratory Region (Idaho) Ides family Ideal beautiful Kalispel |  | | 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 — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever you’re mining, wherever you’re mining, mine it on Bridgestones. iaaseinn Money — BRIDGE STONE...Lesotho Liberia Luxembourg Madagascar Malawi Malaysia Mali Mauritania Mexico Morocco Mocambique Nepal New |
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