 | Macdonald, R., Bagiński, B., Kartashov, P., Zozulya, D., Dzierżanowski, P. (2012) Chevkinite-group minerals from Russia and Mongolia: new compositional data from metasomatites and ore deposits. Mineralogical Magazine, 76 (3) 535-549 doi:10.1180/minmag.2012.076.3.06 | Journal (article/letter/editorial) | | 535–549 Chevkinite-group minerals from Russia and Mongolia: new compositional data from metasomatites and...et al. (2011) granites, nepheline syenites and massif-type anorthosites in the Archaean Keivy terrane...Umbozero lake, at the eastern contact of the Khibiny massif, where it occurs in a metasomatite. The type locality...from aegirinized syenite pegmatites in the Burpala massif. This phase (sample BP) is of particular interest...MushugaiKhuduk carbonatite complex, Gobi desert, Mongolia, which contained unusually large amounts of Ca |  | | Journal (article/letter/editorial) | | spectroscopy and thus whether we are dealing with thorite (tetragonal) or its dimorph huttonite (monoclinic)...Meldrum et al. (1999) determined experimentally that thorite and huttonite underwent radiation damage at the...(2007) suggested that, under natural conditions, thorite becomes metamict whilst huttonite is stable. On...at higher temperatures and pressures than thorite, but thorite is more stable at low temperatures (Shein...can inflict significant radiation damage in the thorite lattice, an important result being to let water |  | | Journal (article/letter/editorial) | | occurrences and deposits from the Keivy alkaline province and, in particular, to show how the distribution...(Brøgger, 1906; Barth, 1927; Nilssen, 1970); Haldzan Buragtag, Mongolian Altai (Macdonald et al., 2015); Ilmeny...fergusonite-(Nd) in the Tatyana pegmatite, Haldzan Buragtag alkali granite massif, Mongolian Altai (Macdonald et al....related to Keivy alkali granite The Keivy alkaline province consists of 2.67-2.65 Ga aegirine-arfvedsonite...vol %. The rock is typical of the White Tundra massif but drastically differs from the West Keivy granite |  | 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) | | 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...amphibolite) in the El’ozero occurrence, West Keivy massif, Kola Peninsula, Russia (Zozulya et al., 2005)...includes, in addition to chevkinite-(Ce), zircon, thorite, allanite–ferriallanite-(Ce), fergusonite-(Y),...Sample 1-93, from the Rova occurrence, West Keivy massif, is from a quartzolite vein and contains quartz |  | 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) | | 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...is not known whether the ThSiO4 phase in K4 is thorite (tetragonal) or its dimorph huttonite (monoclinic)...samples from granitic pegmatites of the Eräjärvi district, South Finland. René and Škoda (2011) recorded...alkalifeldspar granites of the Krásno-Horni Slavkov ore district, Czech Republic. Sakoma and Martin (2002) described |  | | Journal (article/letter/editorial) | | allanite-(Ce), xenotime-(Y), monazite-(Ce and Nd), thorite and gummite. These minerals carry Zr, rare earth...small amount of columbite-(Fe), xenotime-(Y), thorite and gummite that form about 1% by volume. Quartz...These crystals are also found as inclusions in thorite and zircon crystals (figure 6d and g). Monazite...small pale yellow prismatic crystals (figure 6o). Thorite occurs as anhedral black or brown prismatic crystals...(YPO4 ), monazite (Nd, Ce, La, Th)(P, Si)O4 , thorite (ThSiO4 ) and gummite (U3 O8 ). The electron microprobe |  | | 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 |
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Khatuugiin thorite occurrence, Khaldzan Buragtag massif, Myangad District, Khovd Province, Mongolia