%0 Journal Article %T Conodont stratigraphy and correlation of the Ordovician volcanogenic and volcanogenic sedimentary sequences in the South Urals %A Dubinina, S.V. %A Ryazantsev, A.V. %K Stratigraphy, Ordovician, conodonts, formations, "faunal beds'', biofacies, volcanogenic sedimentary deposits, South Urals. %J Russian Journal of Earth Sciences %D 2008 %N 10 %P 7 %I Geophysical Center of the Russian Academy of Sciences