Origin of ree-rich ferrocarbonatites in southern siberia (russia): implications based on melt and fluid inclusions

Prokopyev I.R; Borisenko A.S.; Borovikov A.A.; Pavlova G.G.

doi:10.1007/s00710-016-0449-z

Инд. авторы:	Prokopyev I.R, Borisenko A.S., Borovikov A.A., Pavlova G.G.
Заглавие:	Origin of ree-rich ferrocarbonatites in southern siberia (russia): implications based on melt and fluid inclusions
Библ. ссылка:	Prokopyev I.R, Borisenko A.S., Borovikov A.A., Pavlova G.G. Origin of ree-rich ferrocarbonatites in southern siberia (russia): implications based on melt and fluid inclusions // Mineralogy and Petrology. - 2016. - Vol.110. - Iss. 6. - P.845-859. - ISSN 0930-0708. - EISSN 1438-1168.
Внешние системы:	DOI: 10.1007/s00710-016-0449-z; РИНЦ: 27135810; SCOPUS: 2-s2.0-84975215617; WoS: 000388834300009;
Реферат:	eng: Fe-rich carbonatites with a mineral assemblage of ankerite-calcite or siderite are widespread in southern Siberia, Russia. The siderite carbonatites are associated with F-Ba-Sr-REE mineralization and have a ⁴⁰Ar/³⁹Ar age of 117.2 ± 1.3 Ma. Melt and fluid inclusions suggest that the carbonatites formed from volatile-rich alkali- and chloride-bearing carbonate melts. Ankerite-calcite carbonatites formed from carbonatite melt at a temperature of more than 790 °C. The ferrocarbonatites (the second phase of carbonatite intrusion) formed from a sulfate-carbonate-chloride fluid phase (brine-melt) at >650 °C and ≥360 MPa. The brine-melt fluid phase had high concentrations of Fe and LREEs. A subsequent hydrothermal overprint contributed to the formation of economically important barite-Sr-fluorite-REE mineralization in polymict siderite breccia.
Ключевые слова:	Siberia; russia; Fluid and melt inclusions; Ferrocarbonatite; Fe-F-Ba-Sr-REE mineralization; Carbonatite; Brine-melt; Tuva Region;
Издано:	2016
Физ. характеристика:	с.845-859