Microscopic evidence for nanoparticle-mediated growth of native gold in sulfide deposits at the Higashi-Aogashima Knoll Caldera hydrothermal field. [PDF]
PLoS ONEGold (or electrum) in hydrothermal fluid precipitates directly from gold sulfide complex and/or partly via suspended nanoparticles. The hydrothermal fluid contains "invisible gold" that is atomically dispersed in sulfide minerals or as nanoparticles with
Satoshi Okada +8 more
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FEATURES OF MORPHOLOGY AND CHEMICAL COMPOSITION OF NATIVE GOLD FROM THE MURTYKTY DEPOSIT, SOUTH URALS [PDF]
Минералогия, 2021 The morphology and chemical composition of native gold from the Murtykty deposit (South Urals) are discussed in the paper. Native gold is subdivided into five types: 1) inclusions in sulfides, 2) grains in fractures and interstices of pyrite and other ...
N.S. Chukhareva +5 more
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MINERALOGICAL AND GEOCHEMICAL FEATURES OF HEAVY CONCENTRATES FROM CREEKS OF THE NORTHWESTERN END OF THE OKHOTSK TERRANE (KHABAROVSK KRAI) [PDF]
Минералогия, 2023 The work presents the mineralogical and geochemical features of heavy concentrates from eight gold-bearing tributaries of the Anmandykan 2nd Creek in Khabarovsk krai: West otvilok, East otvilok, Somnitelny, Smezhny, Perevalny, Sobol, Vstrechny and Khvory.
М.А. Pavlova +5 more
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GOLD POTENTIAL OF THE UPPER DEVONIAN BASAL CONGLOMERATES OF THE KANIN PENINSULA (NENETS AUTONOMOUS DISTRICT, RUSSIA) [PDF]
Минералогия, 2022 Native gold and garnets are described for the first time in heavy concentrates from coarse-grained sediments of the Upper Devonian Tayaokuyakha Formation, which occurs on the eroded Upper Riphean schists with angular and azimuthal unconformity (middle ...
M.A. Pavlova +5 more
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ALTERATION OF SULFIDE ORES OF THE SAMOLAZOVSKOE DEPOSIT, ALDAN SHIELD, IN AN EXPERIMENTAL BIOLEACHING HEAP [PDF]
Минералогия, 2023 The paper presents the results of a mineralogical study of sulfide ores of the Samolazovskoe deposit (Aldan Shield) and the products of their experimental bacterial oxidation in a heap. Pyrite and marcasite are the major minerals of primary ores.
E.V. Belogub +3 more
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MINERALOGY OF PRECIOUS METALS IN ORES OF THE YUBILEINOE PORPHYRY GOLD DEPOSIT (KAZAKHSTAN) [PDF]
Минералогия, 2020 Gold and silver mineralogy is studied in ores of the Yubileinoe porphyry gold deposit (Kazakhstan). Native gold is the major gold mineral. Its fineness varies from 970‰ in magnetite-hematite assemblage to 733–860‰ in pyrite-chalcopyrite assemblage ...
O.Yu. Plotinskaya
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MINERALOGY OF CHROMITITES OF MOUNT POKLONNAYA OF THE KARABASH MASSIF, SOUTH URALS [PDF]
Минералогия, 2022 Mineral composition of chromitites and host serpentinites from a quarry at Mt. Poklonnaya of the Karabash serpentinite massif is studied using optical and electron microscopy.
V.I. Popova +4 more
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New data on the mineralogy of the gold-sulfide ore type of the Karalveem deposit, Chukotka
Руды и металлы, 2022 In this paper, we present the results of a mineralogical study of the ores of the Karalveem deposit in the northeast of Russia (Central and Ruslovy areas). Gold mineralization is characterized by two types of ores: gold-quartz-arsenopyrite (quartz veins
Ruslan A. Maksarov +4 more
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Hydrothermal Gold Mineralization and Some Features of Ore Mineral at Onzon-Kanbani Area, Central Myanmar [PDF]
International Journal of Mining and Geo-Engineering, 2018 Onzon-Kanbani area is a western flank of Mogok Metamorphic Belt where gold mineralization is hosted as auriferous quartz-vein with epithermal low-sulphidation characters.
Aung Zar
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MINERAL COMPOSITION OF HEAVY CONCENTRATES OF THE KAMENNAYA SANARKA GOLD PLACER (SOUTH URALS) [PDF]
Минералогия, 2021 The paper presents the results of study of heavy concentrates from the Kamennaya Sanarka gold placer in the South Urals. The +1 mm fraction contains kyanite, garnet and staurolite, which are characteristic of host shists, whereas the –0.5 mm fraction ...
D.A. Rogov, M.A. Rassomakhin
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