 | | Journal (article/letter/editorial) | | 1279–1293. Isotopic Systematics of the Rocks of the Khalyuta Carbonatite Complex of Western Transbaikalia A...Academy of Sciences, ul. M. Sakh’yanovoi 6a, Ulan-Ude, 670047 Russia; e-mail: ripp@gin.bscnet.ru Received February...of isotopic investigations of the rocks of the Khalyuta carbonatite complex (carbonatites, comagmatic...1134/S0016702909120040 INTRODUCTION The nature of the Khalyuta carbonatite complex is currently ambiguously interpreted...controversial issues in the genesis of the Khalyuta deposit can be resolved by isotopic investigations |  | | Journal (article/letter/editorial) | | Sciences, ul. Sakh’yanovoi 6a, Ulan-Ude, 670047 Buryat Republic, Russia e-mail: ripp@gin.bsc.buryatia...Occurrence Analyzed material Method Age, Ma Zircon from carbonatite U-Pb 130 ± 1 1) Shonkinite...5 Rb-Sr 118 ± 11 Southwestern Transbaikalia Khalyuta syenite Oshurkovo Carbonatite Torei 2) Carbonatite...Jurassic Northern Transbaikalia U-Pb 559 ± 17 Zircon from carbonatite U-Pb 596 ± 3.5 4) Phengite...according to the whole-rock–mineral scheme. U–Pb zircon and monazite ages were obtained using a SHRIMP |  | | Journal (article/letter/editorial) | | Academy of Sciences, ul. Sakh’yanovoi 6a, UlanUde, 670047 Russia email: ripp@gin.bscnet.ru Received November...massif is located 20 km away from the city of UlanUde. The gabbroic rocks of this massif contain apatite...an Early Cretaceous age (125.4 ± 2 Ma, SHRIMP II zircon age). All other occurrences of Late Mesozoic mafic...and biotite gneiss (Fig. 1) with a SHRIMP II U–Pb zircon age of 282.8 ± 2.9 Ma. The supposed sequence of...Rb–Sr) and alkali feld spar (128.7 ± 1 Ma SHRIMP II zircon age) syenites are close to that of the gabbroic |  | | Journal (article/letter/editorial) | | Sciences, Staromonetnyi per. 35, Moscow, 119017 Russia Received February 14, 2014 Abstract—Intermediate...been revealed in Russia at carbonatitetype deposits (Kara sug in Tuva and Khalyuta in the western Transbaikal...region) and at the Oktyabr’skoe skarn magnetite deposit in the Angara region. The compiled database of...carbon atitetype deposits—Karasug in Tuva and Khalyuta in western Transbaikal region—and the Angara–Ilim...magnetite deposit in the Angara region. We had the opportunity to study the Karasug and Khalyuta deposits |  | Sharygin, Victor V., Doroshkevich, Anna G., Seryotkin, Yurii V., Karmanov, Nikolai S., Belogub, Elena V., Moroz, Tatyana N., Nigmatulina, Elena N., Yelisseyev, Alexander P., Vedenyapin, Vitalii N., Kupriyanov, Igor N. (2020) Rippite, K2(Nb,Ti)2(Si4O12)O(O,F), a New K-Nb-Cyclosilicate from Chuktukon Carbonatite Massif, Chadobets Upland, Krasnoyarsk Territory, Russia. Minerals, 10 (12) 1102 doi:10.3390/min10121102 | Journal (article/letter/editorial) | | Massif, Chadobets Upland, Krasnoyarsk Territory, Russia Victor V. Sharygin 1,2,3, * , Anna G. Doroshkevich...RAS, 3 Acad. Koptyuga pr., 630090 Novosibirsk, Russia; doroshkevich@igm.nsc.ru (A.G.D.); yuvs@igm.nsc...University, 19 Mira str., 620002 Ekaterinburg, Russia Department of Geology and Geophysics, Novosibirsk...Novosibirsk, Russia Geological Institute, Siberian Branch of the RAS, 6a Sakhyanova str., 670047 Ulan-Ude, Russia...Geoecology, Uralian Branch of the RAS, 456317 Miass, Russia; belogub@mineralogy.ru Faculty of Geology, National |  | | Journal (article/letter/editorial) | | discussed using the Kola Alkaline Province (NW Russia and Finland) as an example. The bulk of incompatible...pyrochlore, ilmenite, baddeleyite and zirconolite) and zircon, whereas a significant proportion of Ti is contained...in the primary HFSE oxides and titanite (but not zircon) are significantly below the primitive-mantle values...pyrochlore deposit in Canada: Gendron et al., 1984) and Zr (e.g., Kovdor baddeleyite deposit in Russia: Ivanyuk...Mean (.n) Formula Range e.s.d. 2.07 .Zircon group: .Zircon ZrSiO4 .Garnet group: .Titaniferous calcic |
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