New data refer to palaeoproterozoic age of the Elabuga deformation zone metamorphism of the Volgo-Uralia, East European Craton

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Abstract


This paper presents age data of the Elabuga zone rocks metamorphism and of the detrital zircon of the Elabuga zone paragneisses and their correlation with the age of Middle-Volga megablock rocks. The Elabuga zone rocks and the Middle-Volga megablock rocks have similar geochemical characteristics and degree of metamorphism. Difference is as follows: Paleoproterozoic metamorphism is occurred at the studied Elabuga zone rocks and such metamorphism age is not presented at the Middle-Volga megablock rocks. The study of U-Pb isotopic system in external zones in the Elabuga deformation zone zircon crystals suggests that rocks were underwent by metamorphism of two stages 1.99 and 1.95 Ga ago.


About the authors

A. A. Fedotova

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences; Geological Institute of the Russian Academy of Sciences

Email: masha_anosova@mail.ru

Russian Federation, 19, Kosygin street, Moscow, 119991; 7, Pyzhevsky lane, Moscow, 119017

S. V. Bogdanova

Department of Geology, Lund University; Kazan Federal University

Email: masha_anosova@mail.ru

Russian Federation, Box 117, Lund, Sweden, SE-221 00; 18, Kremliovskaya street, Kazan, 420008

S. Claesson

Swedish Museum of Natural History

Email: masha_anosova@mail.ru

Sweden, P.O. Box 50007, Stockholm, SE-104 05

M. O. Anosova

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences

Author for correspondence.
Email: masha_anosova@mail.ru

Russian Federation, 19, Kosygin street, Moscow, 119991

A. V. Postnikov

Gubkin Russian State University of Oil and Gas (National Research University)

Email: masha_anosova@mail.ru

Russian Federation, 65, Leninsky prospect, Moscow, 119991

M. M. Fugzan

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences

Email: masha_anosova@mail.ru

Russian Federation, 19, Kosygin street, Moscow, 119991

T. I. Kirnozova

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences

Email: masha_anosova@mail.ru

Russian Federation, 19, Kosygin street, Moscow, 119991

References

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