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The late Tonian Zhaunkar granite complex of the Ulutau sialic massif,Central Kazakhstan |
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| Authors: | A. A. Tretyakov K. E. Degtyarev E. B. Salnikova K. N. Shatagin A. B. Kotov I. V. Anisimova Yu. V. Plotkina |
| Affiliation: | 1.Geological Institute,Russian Academy of Sciences,Moscow,Russia;2.Institute of Precambrian Geology and Geochronology,Russian Academy of Sciences,St. Petersburg,Russia;3.Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry,Russian Academy of Sciences,Moscow,Russia |
| Abstract: | The crystallization age of Zhaunkar granites (829 ± 10 Ma) was determined by U–Pb zircon dating. Taking into account the data obtained earlier on the granite age (791 ± 7 Ma) in the Aktas Complex and the syenite age (673 ± 2 Ma) in the Karsakpai Complex, the Ulutau sialic massif is assumed to be composed of three igneous complexes formed during the Tonian–Cryogenian periods of the Neoproterozoic. |
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