Nb-Fe-RICH ZIRCONOLITE GROUP MINERALS IN CALCITE CARBONATITES OF THE BELAYA ZIMA MASSIF (EASTERN SAYAN)

Two compositional varieties of Nb-Fe-zirconolites have been found in calcite carbonatites of the Belaya Zima alkaline massif: «laachite» Ca2 Zr2 Nb2 TiFe2+O14 (Nb2 O5 > 28 wt. %; TiO2 < 14 wt. %) and «NbFe3+-zirconolite» Ca2 Zr2 NbTi2 Fe3+O14 (Nb2 O5 < 25 wt. %; TiO2 > 16 wt. %). Maximum...

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Bibliographic Details
Main Authors: V.V. Sharygin, A.G. Doroshkevich, E.A. Khromova
Format: Article
Language:English
Published: South Urals Federal Research Center of Mineralogy and Geoecology UB RAS 2016-12-01
Series:Минералогия
Subjects:
Online Access:https://journal.mineralogy.ru/wp-content/uploads/2019/09/2016-4-1.pdf
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