The Rb–Sr and K–Ar Dating of Riphean Rocks from the Bashkir Meganticlinorium, Southern Urals: Results and Implications |
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| Authors: | V I Vinogradov V M Gorozhanin A F Veis V I Murav'ev M I Bujakaite and D I Golovin |
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| Institution: | (1) Geological Institute (GIN), Russian Academy of Sciences, Pyzhevskii per. 7, Moscow, 109017, Russia;(2) Geological Institute, Ufa Scientific Center, Russian Academy of Sciences, ul. Karla Marksa 16/2, Ufa, 450000 Bashkortostan, Russia |
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| Abstract: | Results of the Rb–Sr and K–Ar isotopic dating of Riphean rocks from the southern Urals are discussed. Epigenetic transformation stages corresponding to 930, 525, and 750–800 Ma for Lower, Middle, and Upper Riphean, respectively, are recorded. These three rock groups presumably represented individual blocks, which experienced different secondary alterations. |
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