 | 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) | | The Kalana vein-hosted gold deposit, southern Mali S. Salvi a,â, A. SangarĂ© b,c, Y. Driouch b, L. Siebenaller...Exploration, 3503 Av. Al Qods Hippodrome, BP 2699 Bamako, Mali d Avnel Gold Mining Limited, 39 Cheval Place, London...online xxxx Keywords: Birimian Quartz veins Arsenopyrite Gold Late-orogenic Late-tectonic a b s t r...domain of the West African Craton, in the south of Mali. These formations are intruded successively by small...formed micron-size native gold inclusions in arsenopyrite; a later episode, during vein shearing and fracturing |  | | Journal (issue) | | Antimony-bearing Oxidized Minerals from the Jetty Mine, Anaconda, Montana Frank DudĂĄs (foldudas@verizon...two notes documenting the mineralogy of the Jetty Mine, near Anaconda, Montana (Figure 1), focuses on the...report on the sulfides and sulfosalts of the Jetty Mine appeared in Mineral News last year (Dec., 2021)...antimony-bearing secondary minerals. The Silver Reef Mine north of Garrison produced material that was characterized...on page 2) A Favorite Specimen From the Harding Mine, Taos Co., New Mexico Bob Werner â werner@lcturbonet |  | 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...Queensland, QLD 4072 Australia Abstract The ~8 Moz Morila gold mine, hosted within Paleoproterozoic Birimian volcano-sedimentary...volcano-sedimentary rocks of southeast Mali, is spatially and temporally associated with prolonged (2098â2065...stages of the Eburnean orogeny. Visible gold at Morila is associated with variably deformed polymineralic...dikes associated with gold mineralization at the Morila deposit explicitly links granitic magmatism with |  | | 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...are spatially associated with granitoids, such as Morila (Hammond et al., 2011; MacFarlane et al., 2011)...(Mt) Grade (g/t) Au (t) Ghana 16 Burkina Faso 12 Mali 12 Guinea â9 CĂŽte dâIvoire â5 Senegal â5 Sierra |  | Lebrun, Erwann, ThĂ©baud, Nicolas, Miller, John, Roberts, Malcolm, Evans, Noreen (2017) Mineralisation footprints and regional timing of the world-class Siguiri orogenic gold district (Guinea, West Africa) Mineralium Deposita, 52 (4) 539-564 doi:10.1007/s00126-016-0684-6 | Journal (article/letter/editorial) | | analyses show that gold also substitutes in the arsenopyrite crystal lattice (up to 55.5 ppm). The second...along fractures in V3A pyrite and V3B pyrite and arsenopyrite. Mineralogical and geochemical footprints as...Au-Sb-Bi-(Te-W) mineralisation at the Morila deposit in Southeast Mali. Our results support the hypothesis...quartz-ankerite-arsenopyrite vein; g native gold in an antitaxial V3B quartz-ankerite-arsenopyrite vein overprinting...LA-ICP-MS analyses Mineral generation Pyrite Arsenopyrite V2A V2B V2C D3S Sampled from greywacke |  | | Report (chapter) | | worldclass orogenic gold deposits/districts in western Mali (e.g. Loulo and Sadiola). The Massawa ore body has...mineralization is associated with disseminated arsenopyriteâpyrite, which follows shear zones in the sedimentary...gold is held as a solid solution within either arsenopyrite or arsenian pyrite. Stable isotope data yield...ore genesis at the Loulo mining camp in western Mali. Hammond et al. (2011) suggested that magmatic fluids...played an important role in the evolution of the Morila orogenic gold deposit in South From: Jenkin, G |  | | 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 |  | Masurel, Quentin, ThĂ©baud, Nicolas, Miller, John, Ulrich, Stanislav, Hein, Kim A.A., Cameron, Greg, BĂ©ziat, Didier, Bruguier, Olivier, Davis, James A. (2017) Sadiola Hill: A World-Class Carbonate-Hosted Gold Deposit in Mali, West Africa. Economic Geology, 112 (1) 23-47 doi:10.2113/econgeo.112.1.23 | Journal (article/letter/editorial) | | Hill: A World-Class Carbonate-Hosted Gold Deposit in Mali, West Africa* Quentin Masurel,1,â Nicolas ThĂ©baud...rocks that crop out in eastern Senegal and western Mali. The geology of the inlier differs from other Paleoproterozoic...within 3 km of the Senegal-Mali shear zone, and country rocks in the region have undergone polycyclic...transcurrent tectonics, after the cessation of region-wide compressional deformation. The high-temperature...hydrothermal fluid circulation along the Senegal-Mali shear zone. Introduction The Paleoproterozoic terranes |  | | 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...deposits in districts such as Loulo-Gounkoto and Morila. This is followed by I.K. Khalil, A.M. Moghazi...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron |  | | Journal (article/letter/editorial) | | Although the Ity deposit is the oldest operating mine in Ivory Coast, very few studies exist on this deposit...Ivory Coast, some 700 km northwest of Abidjan. The mine is presently operated and mined by SMI (SociĂ©tĂ©...the saprolite and covers the land throughout the region; it is mineralized in the deposit area. This contribution...et al., 2006 for Ghana; Lawrence et al., 2013 for Mali) but also modiïŹed CuâAu porphyry (e.g., at Gaoua...publication) or intrusion-related gold (e.g., at Morila, McFarlane et al., 2011; Hammond et al., 2011) |  | 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 âsalting out effectâ). Introduction MALI is the second leading gold producing country in...African craton (inset Fig. 1). In southern Mali, the Morila, Syama, and Kalana deposits are situated within...in southwest Mali. This highly gold productive/prospective region is known as the west Mali gold belt, |  | 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) | | Au mineralization in southwest Ghana and western Mali. Dating provides further evidence that Au mineralization...major curved reverse faults during a period of region-wide contractional deformation (e.g., Twiss and...Burkina Faso 10° N1140000N Sierra Leone 240000E Mali 4° W 200000E 180000E 14° N Senegal 8° W 220000E...Burkina Faso Border Nogbele pluton N Guinea Mali Border 0 CĂŽte d'Ivoire Liberia Abidjan 250...wall of one of the main ENE-striking faults in the region, 1 km to the north-northeast of Tongon South (Fig |  | 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...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...by dashed lines. Production of gold from this region is thought to have continued through the 12th and |  | 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) | | deposit, and dated by the Re-Os method on pyrite, arsenopyrite, and pyrrhotite grains that were coeval with...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...4A Gaoua BA SF 10°N Ouagadougou Wona-Kona Morila Kalana GO BURKINA FASO Nassara BENIN TO G...isotope system, focusing on sulfides (pyrite, arsenopyrite) that are petrographically associated with the |  | | Journal (article/letter/editorial) | | Characteristics of Archean gold deposits Deposit, country, region Henderson, Canada McInture-Hollinger, Canada Kolar...Kolar goldfield, India Nevoria, W. Australia Cuiaba Mine, SE Brazil Bronzewing, W. Australia Junction, W...with allowance for gold extracted over the entire mine life. Deposits with reserves over 100 tons usually...of Proterozoic gold deposits Deposit, country, region Age, Ma Au reserves* Reference Witwatersrand...Australia Harnas area, Sweden Aitik, Sweden Paiol mine, Brazil Kamennoe, Russia Cobalt Hill, Canada Gongo |  | 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) | | 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...relatively few gold occurrences in the WAC in which arsenopyrite was not observed, or at least not in signiïŹcant...in Burkina Faso: Inata; McCuaig et al., 2015; in Mali: Loulo, Lawrence et al., 2013; Tabakoroniâ Tellem...1997; Burkina Faso: Taparko, Bourges et al., 1998; Mali: Loulo, Lawrence et al., 2013). In most of these |  | 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...to 11.9â°), whereas ÎŽ34S values of pyrite and arsenopyrite from the Loulo deposits are consistently >6â°...district in the KĂ©dougouKĂ©niĂ©ba inlier in western Mali and eastern Senegal is one of the most richly endowed...500 km Gounkoto Petowal Loulo Mining District Morila Mana district, Wona, Kona 12Âș Syama Siguiri...of being separated by a terrane boundary (Senegal-Mali shear zone), which reopens the possibility that |  | | Journal (article/letter/editorial) | | enriched in As, Ni, Cu, Ag, Sb, W, Au and Pb, and arsenopyrite in folded V1F quartz-carbonate veins. In contrast...(Py3N) and by the co-precipitation of Au-rich arsenopyrite in the V3N quartz veinlets (V3N) controlled...by zoned pyrites (Py3WK and Py2Y) and Au-rich arsenopyrite in the Wona-Kona and Yaho deposits. However...and ore paragenesis in the Loulo gold district (Mali), resulting from hydrothermal systems that sourced...district (Augustin et al., 2017). Pyrite and arsenopyrite textures and trace element composition and zonation |  | 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) | | such as auriferous tourmalinites (e.g., Loulo in Mali), Fe(-Cu) deposits (e.g., FalĂ©mĂ© in SĂ©nĂ©gal) or...gold-bearing sulfide mineralization (e.g., Syama in Mali) and gold paleoplacers (referred to as Tarkwaian...which evolve from a disseminated goldbearing arsenopyrite and Au-bearing quartz lode type to a quartz-vein...Burkina Faso; and Morila (McFarlane et al., 2011) and Loulo (Lawrence et al., 2013) in Mali. This paper presents... 15°N NIGER SENEGAL B) 3°W B) Ouagadougou MALI DĂ©dougou BURKINA FASO GUINEA TO BENIN G 10°N |  | | Journal (article/letter/editorial) | | Finland, Brazil, Australia, Sweden, West Africa, Mali, and Ghana. The data were collected from 22 publications...deposits among these are Callie (Australia), Morila and Yalea (Mali), and Piaba (Brazil). Meso-Neoarchean deposits...Mazhala, China Qolqoleh, Iran Bangbu, China Oriental mine, USA Big Hurrah, USA Mouther Lode, USA Yata, China...Chichago mine, USA Berners Bay, USA Alaska-Juneau mine, USA Treadwell mine, USA Sumdum Chief mine, USA Willow...Olimpiadinskoye, Russia Harnas area, Sweden Paiol mine, Brazil Udereyskoye, Russia Tunkillia, Nuckulla |  | | Journal (article/letter/editorial) | | amounts of limonite, chalcopyrite and covellite. Arsenopyrite is a main ore mineral and often transformed...fractures. Pyrite occurs within fractures of arsenopyrite and /or between the arsenoyprite crystals. Some...occurs as single crystal or as aggregates in arsenopyrite. The Au content of the ore sample lies between...GĂŒneyköy-UĆak (orogenic ore) Au-in quartz veins (arsenopyrite related); Menderes Massif (orogenic ore-Au in...investigated in detail. Previous studies in this region are related to its mineralogy, general geology |  | Tedeschi, M.T., Hagemann, S.G., Kemp, A.I.S., Kirkland, C.L., Ireland, T.R. (2020) Geochronological constrains on the timing of magmatism, deformation and mineralization at the Karouni orogenic gold deposit: Guyana, South America. Precambrian Research, 337. 105329 doi:10.1016/j.precamres.2019.04.015 | Journal (article/letter/editorial) | | 35 km to the W of the former producing 5 Moz Omai mine and is interpreted to be an orogenic gold deposit...and timing of gold mineralization throughout the region. Magmatism within the 200 km2 of the Karouni camp...past-producing 5 Moz Omai Mine (Voicu et al., 1999), the 8.4 Moz Aurora Mine (Cole et al., 2013), and...dikes and associated normal faulting. The Karouni mine consists of two deposits, Smarts (Fig. 5) and Hicks...Karouni and is presumed to represent basement for the region (Fig. 1B). 4.2.1 Early Suite (Samples WHG, GSG |  | Fougerouse, Denis, Micklethwaite, Steven, Ulrich, Stanislav, Miller, John, Godel, BĂ©linda, Adams, David T., McCuaig, T. Campbell (2017) Evidence for Two Stages of Mineralization in West Africaâs Largest Gold Deposit: Obuasi, Ghana. Economic Geology, 112 (1) 3-22 doi:10.2113/econgeo.112.1.3 | Journal (article/letter/editorial) | | These are (1) gold-bearing sulfides, dominantly arsenopyrite, mainly disseminated in metasedimentary rocks...such as strain shadows surrounding gold-bearing arsenopyrite parallel with S2Ob, but folded by S3Ob, indicates...present in the epitaxial growth zones of the arsenopyrite grains. Although the large mineralized quartz...volcanic rocks Obuasi mine B Sibi su 6Âș08N Aâ Gyabunsu Sansu Gold mine Main thrust faults s...made available by more than 10 years of additional mine development since the last study (Allibone et al |  | Sun, Si-Chen, Zhang, Liang, Li, Rong-Hua, Wen, Ting, Xu, Hao, Wang, Jiu-Yi, Li, Zhi-Qi, Zhang, Fu, Zhang, Xue-Jun, Guo, Hu (2019) Process and Mechanism of Gold Mineralization at the Zhengchong Gold Deposit, Jiangnan Orogenic Belt: Evidence from the Arsenopyrite and Chlorite Mineral Thermometers. Minerals, 9 (2) 133 doi:10.3390/min9020133 | Journal (article/letter/editorial) | | Deposit, Jiangnan Orogenic Belt: Evidence from the Arsenopyrite and Chlorite Mineral Thermometers Si-Chen Sun...trending auriferous pyrite-arsenopyrite-quartz veins and disseminated pyrite-arsenopyrite-sericite-quartz alteration...the Zhengchong deposit: (i) Quartzâauriferous arsenopyrite and pyrite; (ii) Quartzâpolymetallic sulfidesânative...native gold occurred at the deposit. Disseminated arsenopyrite and pyrite with invisible gold in them formed...shadows around the arsenopyrite and the formation of fractures of the arsenopyrite. Meanwhile, the infiltration |  | Mahlangu, Thamsanqa (Tham), Sumaili, F. A., Ayizi, Dieudonne Ntamb, Sindani, B.M., Mande, P., Du Toit, Gustav, Verster, Martin, Mogashoa, Solomon, Lotz, P. (2020) Kibali Gold Mine sulphide concentrate treatment â understanding the preoxidation of sulphide concentrates. Mineral Processing and Extractive Metallurgy, 129 (1). 74-86 doi:10.1080/25726641.2019.1631633 | Journal (article/letter/editorial) | | https://www.tandfonline.com/loi/ympm21 Kibali Gold Mine sulphide concentrate treatment â understanding the... Solomon Mogashoa & P. Lotz (2019): Kibali Gold Mine sulphide concentrate treatment â understanding the...https://doi.org/10.1080/25726641.2019.1631633 Kibali Gold Mine sulphide concentrate treatment â understanding the...South Africa ABSTRACT ARTICLE HISTORY Kibali Gold Mine (KGM) processing plant treats both free milling...Accepted 10 June 2019 Introduction Kibali Gold Mine processing plant concentrate handling circuit treats |
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