 | | Journal (article/letter/editorial) | | with chevkinite-(Ce) in a quartz-epidote metasomatite; (2) during alteration of monazite(Ce) in a quartzolite;...chevkinite-(Ce); and (5) associated with cerite-(Ce) and with ilmenite and bastnäsite-(Ce) in late-stage...(the Keivy massif, Kola Peninsula and the Vishnevye Mountains, southern Urals) and Mongolia (the Khaldzan-Buragtag...composition and hydrothermal alteration of chevkinite-(Ce), references also being given in Table 1. Numerous...quartzolite from the Rova occurrence in the West Keivy massif, where it occurs as a small outcrop, 1– 2 m in |  | | Journal (article/letter/editorial) | | HREE and addition of Ce during alteration are governed by two major processes: Ce accumulation in late...the crystallization environment. The decreases of Ce and other REE in some occurrences resulted from a...occurrences and deposits from the Keivy alkaline province and, in particular, to show how the distribution...element in the A site, fergusonite-(Y), fergusonite-(Ce) and fergusonite-(Nd) are distinguished. Two structures...Williams-Jones, 1999). Extremely rare fergusonite (Ce) and fergusonite-(Nd) are related rather to carbonatites |  | Bagiński, B., Macdonald, R., Dzierżanowski, P., Zozulya, D., Kartashov, P. M. (2015) Hydrothermal alteration of chevkinite-group minerals: products and mechanisms. Part 1. Hydration of chevkinite-(Ce) Mineralogical Magazine, 79 (5) 1019-1037 doi:10.1180/minmag.2015.079.5.01 | Journal (article/letter/editorial) | | and mechanisms. Part 1. Hydration of chevkinite-(Ce) B. BAGIŃ SKI1,*, R. MACDONALD1,2, P. DZIERŻANOWSKI1...the interaction of the REE-Ti silicate chevkinite-(Ce) with hydrothermal fluids. Altered zones in crystals...2006; Uher et al., 2009; Ruschel et al., 2010), monazite (Berger et al., 2008; Seydoux-Guillaume et al...the TsahirinKhuduk ore occurrence, Khaldzan Buragtag massif, Mongolia. He considered that the alteration...Jiang (2006) described the alteration of chevkinite-(Ce) by residual magmatic fluids and a later hydrothermal |  | 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) | | alteration of a chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction...undescribed type of hydrothermal alteration of chevkinite-(Ce) which occurs in a syenitic pegmatite from the Vishnevye...progressive alteration of the chevkinite to a bastnäsite-(Ce)-ilmenite-columbite-(Fe) assemblage through a series...the exception of La, released from the chevkinite-(Ce) were reincorporated into later phases, such that...the TsahirinKhuduk ore occurrence, Khaldzan Buragtag massif, Mongolia. He considered that the alteration |  | | Journal (article/letter/editorial) | | fergusonite-(Y), columbite-(Fe), allanite-(Ce), xenotime-(Y), monazite-(Ce and Nd), thorite and gummite. These...(arfvedsonite). Anhedral opaque crystals, zircon and monazite are the accessory minerals. K-feldspars are represented...fergusonite-(Y) (0.3–3% by volume), allanite-(Ce) (1–4% by volume), monazite(Ce and Nd), (0.5% by volume), with a...columbite, xenotime and haematite (figure 6g). Allanite-(Ce) shows a shade of brown colour with a dark core in...elements Ba Cs Ga Hf Rb Sr Nb Zn Ta Zr U Th REE La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Y LREE HREE |  | | Book (volume) | | minerals from alkaline pegmatites of the Kovdor massif: (1) mogovidite (CO32 -dominant), (2) golyshevite...kyanoxalite from Alluaiv Mt., Lovozero alkaline massif, Kola peninsula, Russia (After Chukanov et al....Rastsvetaeva et al. 2009) from the Yoko-Dovyren massif, Northern Baikal area 14 1 The Application...suolunite Ca2[Si2O5(OH)2]·H2O from the YokoDovyren massif, Northern Baikal area Fig. 1.18 IR spectrum of...Na4[Si2O4(OH)2]2·7H2O from the Palitra pegmatite, Lovozero massif, Kola peninsula hydrated proton) in solids and |
|
