 | | Journal (article/letter/editorial) | | formula elements by non-formula elements, such as Ca, Fe, P and REE. The most reliable geochemical indicators...(the Keivy massif, Kola Peninsula and the Vishnevye Mountains, southern Urals) and Mongolia (the Khaldzan-Buragtag...quartzolite from the Rova occurrence in the West Keivy massif, where it occurs as a small outcrop, 1– 2 m in...metasomatite pegmatite 2.65–2.67 Ga Mongolia, Khaldzan Mongolia, Khaldzan ores associated with metasomatites...arfvedsonite; bast, bastnäsite; brith, britholite; col, columbite; epid, epidote; ferg, fergusonite; mcl, microcline; |  | Macdonald, Ray, Bagiński, Bogusław, Kartashov, Pavel M., Zozulya, Dmitry, Dzierżanowski, Piotr, Jokubauskas, Petras (2015) Hydrothermal alteration of a chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction with a F-, CO2-rich fluid. Mineralogy and Petrology, 109 (6) 659-678 doi:10.1007/s00710-015-0394-2 | Journal (article/letter/editorial) | | chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction with a F-, CO2-rich...the chevkinite to a bastnäsite-(Ce)-ilmenite-columbite-(Fe) assemblage through a series of texturally complex...occurrence represents a new paragenesis for a columbite-group mineral. Editorial handling: A. Beran Electronic...the TsahirinKhuduk ore occurrence, Khaldzan Buragtag massif, Mongolia. He considered that the alteration...of A-type granites and syenites of the Graciosa Province, southern Brazil, Vlach and Gualda (2007) documented |  | | Journal (article/letter/editorial) | | contain high amounts of zircon, fergusonite-(Y), columbite-(Fe), allanite-(Ce), xenotime-(Y), monazite-(Ce...Nd), (0.5% by volume), with a small amount of columbite-(Fe), xenotime-(Y), thorite and gummite that form...contain many inclusions of fergusonite (figure 6f), columbite, xenotime and haematite (figure 6g). Allanite-(Ce)...length and 0.6 cm in width; figure 6k and l). Columbite crystals are locally found as large black prismatic...fergusonite-(Y), allanite-(Ce) monazite, xenotime, columbite, thorite and gummite occur as trace/accessory |
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