Abstract
On the basis of the local composition, baddeleyite grains that were less altered due to interaction with an alkaline melt and corresponded to the primary stage of crystallization of the intrusion were selected from the carbonatite intrusion of the Proterozoic polyphase Tiksheozero alkaline–ultramafic complex. The single age of carbonatite crystallization characterized of the bulk volume of the intrusion was estimated for the first time on the basis of 40 local U–Th–Pb (SHRIMP II) analyses of these grains. The overall concordant age of baddeleyite is 1994.8 ± 9.4 Ma, and the lower age limit of the polyphase complex formation is less than 1998.4 ± 3.5 Ma.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. V. Sharkov, Formation of Layered Intrusives and Related Mineralization (Moscow, 2006) [in Russian].
A. A. Arzamastsev, F. Bea, L. V. Arzamastseva, and P. Montero, Petrology 14, 361–389 (2006).
A. R. Chakhmouradian, Chem. Geol. 235, 138–160 (2006).
F. Y. Wu, Y. H. Yang, Q. L. Li, R. H. Mitchell, J. B. Dawson, G. Brandl, and M. Yuhara, Lithos 127, 309–322 (2011).
M. Tichomirowa, G. Grosche, J. Götze, B. V. Belyatsky, E. V. Savva, J. Keller, and W. Todt, Lithos 91, 229–249 (2006).
D. E. Harlov, A. Lawerentz, and A. Schersten, Mineral. Mag. (2012), 1813.
N. V. Rodionov, B. V. Belyatskii, A. V. Antonov, S. L. Presnyakov, S. A. Sergeev, Dokl. Earth Sci. 428 (7), 1166–1170 (2009).
A. S. Rukhlov and K. Bell, Mineral. Petrol. 98, 11–54 (2010).
F. Corfu, T. B. Bayanova, V. V. Shchiptsov, and N. Frantz, Centr. Europ. J. Geosci. 3 (3), 302–308 (2011).
M. Tichomirowa, M. J. Whitehouse, A. Gerdes, J. Götze, B. Schulz, B. V. Belyatsky, Chem. Geol. 353, 173–198 (2013).
L. M. Heaman and A. N. LeCheminant, Chem. Geol. 110, 95–126 (1993).
N. Rodionov, B. Belyatsky, A. Antonov, I. Kapitonov, and S. Sergeev, Gondwana Res. 21, 728–744 (2012).
G. R. Lumpkin, J. Nucl. Materials 274, 206–217 (1999).
T. Reischmann, G. E. Brugmann, K. P. Jochum, and W. A. Todt, Mineral. Petrol. 53, 155–164 (1995).
E. A. Belousova, W. L. Griffin, S. Y. O’Reilly, and N. I. Fisher, Contrib. Mineral. Petrol. 143, 602–622 (2002).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.V. Rodionov, B.V. Belyatsky, A.V. Antonov, S.G. Simakin, S.A. Sergeev, 2015, published in Doklady Akademii Nauk, 2015, Vol. 464, No. 4, pp. 474–479.
Rights and permissions
About this article
Cite this article
Rodionov, N.V., Belyatsky, B.V., Antonov, A.V. et al. Geochemical features and age of baddeleyite from carbonatites of the Proterozoic Tiksheozero alkaline–ultramafic pluton, North Karelia. Dokl. Earth Sc. 464, 1039–1043 (2015). https://doi.org/10.1134/S1028334X15100086
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1028334X15100086