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Vol. 18 (2015 year), No. 2

Kaulina T. V., Bayanova T. B., Talat Ahmad, Lyalina L. M., Mishra M. K., Nitkina E. A., Elizarov D. V., Serov P. A.
Evolution of the Central Indian tectonic zone:Geochemical and isotope-geochronological data

In the framework of the Russian-Indian joint research projects geochemical and geochronological study of granitoid rocks across the Central Indian Tectonic Zone has been carried out. Geochronological data suggest that the Central Indian Tectonic Zone is composed primarily of Proterozoic rocks, formed as a result of several stages of granitoid magmatism: at 2.43, 2.34-2.31, 1.73-1.72 and 1.53-1.51 Ga. Metamorphic transformations reflected by Sm–Nd and Rb–Sr systems of rocks and minerals occurred 1.37-1.1 Ga ago that allows comparing the final processes in the Central Indian Tectonic Zone with the Grenville orogeny and it can be used for the reconstruction of Rodinia

(in Russian, стр.10, fig. 3, tables. 1, ref 13, Adobe PDF, Adobe PDF 0 Kb)

Vol. 18 (2015 year), No. 2

Кunakkuzin Е. L., Bayanova Т. B., Nerovich L. I., Borisenko Е. S., Serov P. А., Elizarov D. V.
New Nd-Sr isotope-geochemical research of the paleoproterozoic PGE-bearing Monchetundra massif rocks (the Fennoscandian Shield)

This paper presents results of Nd-Sr research for mafic rocks from the PGE-bearing Monchetundra massif, the Main Ridge. According to the new isotopic data mafic rocks of the massif different in age are characterized by various isotopic and geochemical characteristics....

(in Russian, стр.11, fig. 5, tables. 3, ref 20, Adobe PDF, Adobe PDF 0 Kb)