Инд. авторы:	Borovikov A.A., Vladykin N.V., Tretiakova I.G., Dokuchits E.Y.
Заглавие:	Physicochemical conditions of formation of hydrothermal titanium mineralization on the Murunskiy alkaline massif, western Aldan (Russia)
Библ. ссылка:	Borovikov A.A., Vladykin N.V., Tretiakova I.G., Dokuchits E.Y. Physicochemical conditions of formation of hydrothermal titanium mineralization on the Murunskiy alkaline massif, western Aldan (Russia) // Ore Geology Reviews. - 2018. - Vol.95. - P.1066-1075. - ISSN 0169-1368.
Внешние системы:	DOI: 10.1016/j.oregeorev.2017.11.007; РИНЦ: 35511419; SCOPUS: 2-s2.0-85035789611; WoS: 000432760500057;
Реферат:	eng: The unique Aldan ore-magmatic province in Yakutia is characterized by Mesozoic alkaline magmatism and related ore deposits (Cu-Au porphyry, gold-quartz vein and gold-brannerite). The Murunskiy alkaline massif occurs in the western part of this province. This massif includes the world's largest volcanic-plutonic complex of potassium-alkaline rocks and has no analogs in the world. High agpaitic indexes are common for all magmatic rocks of the massif. Moreover, the massif is well known for its unique Ba-Sr carbonatite and charoite rocks. We have studied the fluid regime of a post-magmatic formation of rutile and anatase-brookite quartz veins with pyrite, galena, sphalerite, chalcopyrite, native gold and the titanium mineralization. Fluid inclusions study shows that the titanium mineralization was formed at the temperature range of 475–440 °C and pressure between 150 and 125 MPa from heterogeneous chloride-carbonate-sulfate fluid. The immiscible fluid fractions were represented by gaseous phase, low- and middle-concentrated solutions, as well as highly concentrated salt brine. Mineral-forming fluids were characterized by high redox-potential, due to the high concentration of sulfates. The immiscible fluid fractions differ in the content of ore elements. Highly concentrated fluid fractions contain increased concentrations of S, Cu, Mo, Fe, Pb, Zn, U, and Au, and low-concentrated fluid fractions containing U, Th, As, and Au. © 2017 Elsevier B.V.
Ключевые слова:	Temperature range; Rutile and anatase; Redox potentials; Physicochemical conditions; Immiscible fluids; Fluid inclusion; Concentrated solution; Concentrated fluids; Zinc sulfide; Volcanic rocks; Titanium mines; Titanium dioxide; Titanium; Tectonics; Sulfur compounds; Strontium alloys; Quartz; Oxide minerals; Ore deposits; Gold deposits; Gold alloys; Gold; Copper compounds; Copper alloys; Concentration (process); Chlorine compounds; Binary alloys; Barium alloys; Ti mineralization; Fluid inclusions; Chloride-carbonate-sulfate oxidized fluids; Redox reactions; Mineralogy;
Издано:	2018
Физ. характеристика:	с.1066-1075
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