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岩石学报 2007年第8期23卷 1957-1972页

作者： Anita N.Berzina Alexander F.Korobeinikov Institute of Geology and Mineralogy Koptyug Avenue3Novosibirsk 630090Russia Tomsk Polytechnic University Lenin Avenue30Tomsk 634050Russia

Precious metal(Pt,Pd and Au)and Re contents in rocks,ores and flotation concentrates of Siberian(Russia)andMongolian porphyry Cu-Mo and Mo-Cu deposits were *** following deposits are discussed:Early Devonian porphyry Mo-CuSora deposit(Kuznetsk Alatau Mountains,Russia)and porphyry Cu-Mo Aksug deposit,(northeastern Tuva,Russia);Triassicporphyry Cu-Mo Erdenetiin ovoo deposit(northern Mongolia).The samples analyzed include unaltered host rocks of plutons,porphyryrocks of ore-bearing series,different types of altered rocks,mineral separate analyses of molybdenite,chalcopyrite and magnetite,aswell as flotation ***,Pd,Au and Re contents were determined using ICP/MS,AAS and inversion voltammetric *** abundances in rocks and poorly mineralized samples span a large range from below detection limit to 65 ppb Pt and 74 *** concentrations in whole rock samples range from below detection limit to 89 *** has been shown to be the majorhost phase for *** results presented show that Aksug deposit reveals elevated PGE and Au contents in ore minerals and *** Pd contents in ores of the Aksug deposit are in accordance with the presence of palladium mineralization in the formof palladium telluride merenskyite(Pd,Pt)Te_*** variety of precious metals and Re contents in the studied deposits could be caused by a complex interplay of several factors,including importance of primary metal concentrations derived from the source,transport of metals to the deposition area,physicochemical properties of the fluid(fo_2,pH,fs,T,P),and depositional *** Re contents in molybdenite andchalcopyrite separates are typical for copper-rich Aksug and Erdenetiin ovoo *** concentration in sulfides frommolybdenum-rich Sora deposit is significantly *** oxidized,Cl-rich fluid style at Aksug and Erdenetiin ovoo was favorable forhigh rhenium solubility and transport to depositional *** occurrence of signif

关键词：铼铂族元素斑岩铜钼矿床 Aksug Sora Erdenetiin ovoo

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