First Find of Ga-Bearing Minerals in Ores of Ural Massive Sulfide Deposits     

N. P. Safina  N. R. Ayupova  E. V. Belogub  V. V. Maslennikov  I. A. Blinov  I. G. Zhukov  D. A. Artem’ev 《Doklady Earth Sciences》2018,480(2):746-749

Gallium-containing chlorite, mica, and magnetite (up to 14, 13, and 5–7 wt % of Ga) along with Ga hydroxides (oxyhydroxides?) were found for the first time in massive sulfide deposit in the Urals. The minerals identified within the cement of chalcopyrite–sphalerite breccias of the Shemur copper–zinc–massive sulfide deposit (Northern Urals) are associated with Ga-enriched sphalerite, chalcopyrite, and, less commonly, pyrite (33–364, 67–363, and 4–230 g/t, respectively).  相似文献   

Arsenocolusite in Pyrite Ores of the Saum Copper–Zinc Massive Sulfide Deposit,North Urals     

Ayupova  N. R.  Maslennikov  V. V.  Tseluyko  A. S.  Stepanov  A. V.  Artemyev  D. A.  Belogub  E. V.  Kotlyarov  V. A.  Butnyakov  A. V. 《Geology of Ore Deposits》2021,63(1):79-86

Geology of Ore Deposits - Pyrite ores on the flanks of the Saum copper–zinc massive sulfide deposit are clastic sediments intensely transformed under conditions of acid diagenesis. Colusite...  相似文献   

Gold–Telluride Mineralization in Pb–Zn–Fe Ores of the Aktash Skarn Deposit (Western Karamazar,Tajikistan)     

Yatimov  U. A.  Ayupova  N. R.  Maslennikov  V. V.  Kotlyarov  V. A.  Shilovskikh  V. V. 《Geology of Ore Deposits》2022,64(4):202-220

Geology of Ore Deposits - The article describes magnetite–sulfide assemblages of minerals containing native gold and tellurides in the Pb–Zn–Fe ores of the Aktash skarn deposit in...  相似文献   

Mineralogical and Geochemical Features of Pyrite Nodules from Sulfide Turbidites in the Talgan Cu-Zn Massive Sulfide Deposit (Southern Urals)     

Ayupova  N. R.  Maslennikov  V. V.  Artem’ev  D. A.  Blinov  I. A. 《Lithology and Mineral Resources》2019,54(6):447-464

Lithology and Mineral Resources - Pyrite nodules were found in thin-layered sulfide ores localized at the flanks of the Talgan Cu-Zn massive sulfide deposit (South Urals) which consists of (1) an...  相似文献   

Biomineralization in ferruginous-siliceous sediments of massive sulfide deposits of the Urals     

N. R. Ayupova  V. V. Maslennikov 《Doklady Earth Sciences》2012,442(2):193-195

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Erratum to: “Criteria for the detection of hydrothermal ecosystem faunas in ores of massive sulfide deposits in the Urals”     

V. V. Maslennikov  N. R. Ayupova  S. P. Maslennikova  A. Yu. Lein  A. S. Tseluiko  L. V. Danyushevsky  R. R. Large  V. A. Simonov 《Lithology and Mineral Resources》2017,52(4):334-334

The ore-formational, ore-facies, lithological, and mineralogical-geochemical criteria are defined for the detection of hydrothermal ecosystem fauna in ores of the volcanic-hosted massive sulfide deposits in the Urals. Abundant mineralized microfauna is found mainly in massive sulfide mounds formed in the jasperous basalt (Buribai, Priorsk, Yubileinoe, Sultanov), rhyolite—basalt (Yaman-Kasy, Blyava, Komosomol’sk, Sibai, Molodezhnoe, Valentorsk), and the less common serpentinite (Dergamysh) formations of the Urals (O—D₂). In the ore-formational series of the massive sulfide deposits, probability of the detection of mineralized fauna correlates inversely with the relative abundance of felsic volcanic rocks underlying the ores. This series is also marked by a gradual disappearance of colloform pyrite, marcasite, isocubanite, pyrrhotite, and pyrite pseudomorphoses after pyrrhotite; increase of the amount of bornite, fahlores, and barite; decrease of contents of Se, Te, Co, and Sn in chalcopyrite and sphalerite; and inсrease of Tl, As, Sb, and Pb in the colloform pyrite. Probability of the detection of mineralized fauna in the morphogenetic series of massive sulfide deposits decreases from the weakly degraded sulfide mounds to the clastic stratiform deposits. The degradation degree of sulfide mounds and fauna preservation correlates with the attenuation of volcanic intensity, which is reflected in the abundance of sedimentary and volcanosedimentary rocks and the depletion of effusive rocks in the geological sections.  相似文献   

REE Geochemistry and Mineralogy in Ores of the Talgan Cu–Zn Massive Sulfide Deposit,Southern Urals     

Ayupova  N. R.  Maslennikov  V. V.  Filippova  K. A. 《Doklady Earth Sciences》2019,487(2):973-975

Doklady Earth Sciences - The high REE concentrations (57.23–561.2 ppm) in thin-layered sulfide ores of the Talgan Cu–Zn massive sulfide deposit (Southern Urals) are related to the...  相似文献   

Tellurium-Bearing Mineralization in Clastic Ores at the Yubileynoe Copper Massive Sulfide Deposit (Southern Urals)     

Tseluyko  A. S.  Maslennikov  V. V.  Ayupova  N. R.  Maslennikova  S. P.  Danyushevsky  L. V. 《Geology of Ore Deposits》2019,61(2):133-161

At the well-preserved Yubileynoe VMS deposit (Southern Urals), sulfide breccias and turbidites host abundant tellurides represented by hessite, coloradoite, altaite, volynskite, stützite, petzite, and calaverite, as well as phases of the intermediate tellurobismuthite → rucklidgeite solid solution. Three telluride generations were highlighted: (1) primary hydrothermal tellurides in fragments of chalcopyrite and sphalerite of chalcopyrite-rich black smoker chimneys; (2) authigenic tellurides in pseudomorphic chalcopyrite and chalcopyrite veins after fragments of colloform and granular pyrite; and (3) authigenic tellurides in pyrite nodules. Authigenic tellurides are widespread in pyrite-chalcopyrite turbidites. Primary hydrothermal and authigenic tellurides are less common in sulfide turbidites and gritstones with fragments of sphalerite-pyrite, pyrite-sphalerite paleosmoker chimneys and clasts of colloform and fine-grained seafloor hydrothermal crusts. Siliceous siltstones intercalated with sulfide turbidites contain pyrite nodules, whose peripheral parts contain inclusions of epigenetic tellurides. It is assumed that Te for authigenic tellurides originated from fragments of colloform pyrite and hydrothermal chalcopyrite of pyrite-chalcopyrite chimneys, which dissolved during the postsedimentation processes. The main Te concentrators in clastic ores include pseudomorphic chalcopyrite, which inherits high Te, Bi, Au, Ag, Co, Ni, and As contents from the substituted colloform pyrite, and varieties of granular pyrite containing microinclusions of tellurobismuthite (Bi, Te), petzite (Au, Ag, Te), altaite (Pb, Te), coloradoite, and hessite (Ag, Te).

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Se and In minerals in the submarine oxidation zone of a massive sulfide orebody of the molodezhnoe copper–zinc massive sulfide deposit,Southern Urals     

N. R. Ayupova  V. V. Maslennikov  V. A. Kotlyarov  S. P. Maslennikova  L. V. Danyushevsky  R. Large 《Doklady Earth Sciences》2017,473(1):318-322

For the first time, extremely high Se and In contents were determined for the pinches of massive sulfide orebodies that are composed of small-clastic layered sulfide sediments transformed during submarine supergenesis. Se (clausthalite and naumannite) and In (roquesite) minerals were found. Hydrothermal chalcopyrite, a significant amount of which is present in the clasts of paleohydrothermal black smoker chimneys, was the source of Se. Most of the amount of In was contributed during dissolution of clasts of hydrothermal sphalerite, which is unstable in the submarine oxidation zone in the presence of oxidized pyrite.  相似文献   

Behavior of Trace Elements during Oxidation of Sphalerite of the Irinovskoe Hydrothermal Sulfide Field (13°20′ N,Mid-Atlantic Ridge)     

Melekestseva  I. Yu.  Maslennikov  V. V.  Ayupova  N. R.  Belogub  E. V.  Maslennikova  S. P.  Bel’tenev  V. E.  Danyushevsky  L.  Large  R. 《Geology of Ore Deposits》2020,62(3):254-259

Geology of Ore Deposits - The formation of present-day seafloor sulfide deposits is accompanied by their continuous oxidation and crystallization of insoluble Fe oxyhydroxides, which absorb metals...  相似文献