| | Journal (article/letter/editorial) | purposely lacking, as all information on regional and mine geology, host rock and ore sample descriptions,...India; Pilgrimâs Rest [30â33], South Africa; Lega Dembi, Ethiopia [34]; Navachab, Namibia [35â40]; Mindyak...Africa, three in India, two in Russia, one in Ethiopia, Brazil and Indonesia. The geographic diversity...CuiabĂĄ, Hutti, Ajjanahalli, Hira Buddini and Lega Dembi are situated in greenstone belts, Renco formed...Ajjannahalli Renco Hutti Hira Buddini Pilgrimâs Rest Lega Dembi Navachab Mindyak Kochkar Awak Mas Barberton | | | Journal (article/letter/editorial) | minor/trace elements that can be incorporated. Silver, bismuth, antimony, and arsenic Substitution of silver into...SEDEX and Pattison (2000), Lydon (2000) Lega Dembi, Ethiopia Amphibolite facies (430â520 °C) Fiori et...Porphyry Cu Sullivan, Canada Giant SEDEX Lega Dembi, Ethiopia Orogenic gold, Adola greenstone belt Bleikvassli...Romania); and an orogenic gold deposit (Lega Dembi, Ethiopia). The epithermal group includes examples...overprint (e.g., Cook et al. 1998). The Lega Dembi deposit, Ethiopia, is of orogenic Au type. It is included | | | Report (issue) | = 39.94(3) Z=3 X-ray Powder Pattern: OrijaÌrvi mine, Finland. 3.072 (100), 2.246 (80), 2.112 (80), 1...93 (2) 15.4 3.3 Total 99.88 100.0 (1) OrijaÌrvi mine, Finland; after deducting 4% of galena, sphalerite...ite-biotite rocks (OrijaÌrvi mine, Association: Chalcopyrite, bismuth, sphalerite, molybdenite, silver...silver, pyrite, galena (OrijaÌrvi mine, Finland); tetrahedriteâtennantite, luzoniteâfamatinite, pyrite,...mawsonite, nekrasovite, chalcopyrite, emplectite, bismuth, calcite, quartz, barite (Kuramin Mountains, Uzbekistan); | | | Journal (article/letter/editorial) | identified by chemical microanalysis alone. Keywords: bismuth chalcogenides, tetradymite series, system BiâTeâSeâS...par la RĂ©daction) Most-clĂ©s: chalcogĂ©nures de bismuth, sĂ©rie de la tĂ©tradymite, systĂšme BiâTeâSeâS, systĂ©matique...Introduction Mineral species of bismuth with tellurium, selenium and sulfur (bismuth chalcogenides) occur in...1979) and tsumoite (BiTe; Yamana et al. 1979). Bismuth atoms are shown in red, tellurium in yellow, and...part of a single homologous series, the name âbismuthâtetradymite homologous seriesâ being used for the | | | Journal (article/letter/editorial) | sediment-hosted gold deposits such as Lega Dembi gold deposit, Southern Ethiopia, Um El Tuyor gold deposit, Egypt...associated with refractory gold occurrences in the region. J. Earth Syst. Sci. (2019)128:233 Page 3 of...less with the carbonaceous metasedimentary rocks. Bismuth is present as a solid solution or micro inclusions...(Large et al. 2007, 2009; Thomas et al. 2011). Bismuth concentrations also show a positive correlation...traceelement concentrations between the peripheral region and core parts of pyrites and it indicates that | | | Journal (article/letter/editorial) | Essakane, 20 = KittilaÌ, 21 = Meliadine, 22 = Lega Dembi, 23 = Fosterville, 24 = Sukhoi Log, 25 = La Lucette...porphyry deposits which plot in the negative t1 region (Fig. 13B). The distribution of samples on the... a higher gold fineness with the chalcopyrite-bismuth mineralgalena-pyrite association is related to...trace element heterogeneity within a single grain. Bismuth is relatively concentrated in the core of electrum...volcanogenic massive sulfide system: the 1806 zone, Ming mine, Newfoundland, Canada. Econ. Geol. 109, 1611â1642 | | | Report (issue) | MAURITANIA MALI NIGER ERITREA CHAD Khartoum* SUDAN ETHIOPIA UG Kampal RWANDA~:c-J:::;.:;.;:;'---.. Kigali...37 Egypt . . . . . . . . . . . . . . . . . . 41 Ethiopia, Djibouti, and Eritrea . . . 47 Gabon . . . ....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 | | | Book (edition) | the mineral industry and human consequences 11.6.1 Mine waste catastrophe 11.6.2 Mineral process plant failure... Silver Aluminium Arsenic Astatine Gold Boron Bismuth Bromine Carbon Calcium Cadmium Cerium Chlorine...system had been unearthed along the âAwas Riverâ in Ethiopia following the East African Rift System. âMillennium...tailing in the future. The tailing of Kolar gold mine, India, historically stored at tailing dam, is being...and alloys Delicate acicular ore at Broken Hill mine, Australia, Friedrichssegen, Germany. Secondary | | | Book | useful for revealing the geodynamic evolution of a region, and more effective for regional prospecting exploration...evolution process of regional structures. This region is located within the southeastern margin of the...were significantly reworked during orogenies. The region witnessed migration and collision between the NCC...Metal minerals are mainly pyrite, natural gold and bismuth tellurite, followed by chalcopyrite, galena, sphalerite...Metallogenesis of super-large gold deposits in Jiaodong region and deep processes of subcontinental lithosphere |
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