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Ordovician lithotectonic complexes in allochthons of the southern Urals

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Abstract

Ordovician complexes of the convergent margins of lithospheric plates are established in the Paleozoides of the southern Urals. Several types of Ordovician sections that make up allochthons and characterize different geodynamic settings are thoroughly studied and dated on the basis of conodont biostratigraphy. The geochemistry and petrology of volcanic rocks bear information on the evolution of the Paleoural ocean and the convergent relationships of plates from the end of the Llanvirnian. The suprasubduction volcanic activity in the Late Ordovician gave way to within-plate volcanism of extension zones, the development of which continued into the Early Silurian.

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  1. Geological Institute, Russian Academy of Sciences, Pyzhevskii per. 7, Moscow, 119017, Russia

    A. V. Ryazantsev, S. V. Dubinina, N. B. Kuznetsov & A. A. Belova

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Original Russian Text © A.V. Ryazantsev, S.V. Dubinina, N.B. Kuznetsov, A.A. Belova, 2008, published in Geotektonika, 2008, No. 5, pp. 49–78

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Ryazantsev, A.V., Dubinina, S.V., Kuznetsov, N.B. et al. Ordovician lithotectonic complexes in allochthons of the southern Urals. Geotecton. 42, 368–395 (2008). https://doi.org/10.1134/S0016852108050038

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