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Finds of “Ancient” Zircons in Magmatic Rocks of the Shatak Complex (Southern Urals) and Their Petrogenic Implications

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Abstract

New data on the presence of “old” zircons in magmatic rocks of the Shatak Complex have been obtained. This suggests that the evolution of melts in intermediate magma chambers was controlled by the AFC process, in which the liquidus phases (olivine ± clinopyroxene) fractionated, the fluid phases accumulated in the apical part of the chamber, and the host rocks were partly assimilated. Hence, the “old” zircons were entrained from the Archaean–Paleoproterozoic granite–gneiss substrate and trapped by the melt during crustal contamination.

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Authors and Affiliations

  1. Institute of Geology, Ufa Federal Research Center, Russian Academy of Sciences, Ufa, 450077, Russia

    S. G. Kovalev, V. N. Puchkov, S. I. Vysotsky & S. S. Kovalev

  2. Institute of Geology and Geochemistry, Ural Branch of Russian Academy of Sciences, Ekaterinburg, 620016, Russia

    V. N. Puchkov

Authors
  1. S. G. Kovalev
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  2. V. N. Puchkov
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  3. S. I. Vysotsky
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  4. S. S. Kovalev
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Correspondence to S. G. Kovalev.

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Original Russian Text © S.G. Kovalev, V.N. Puchkov, S.I. Vysotsky, S.S. Kovalev, 2018, published in Doklady Akademii Nauk, 2018, Vol. 482, No. 5.

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Kovalev, S.G., Puchkov, V.N., Vysotsky, S.I. et al. Finds of “Ancient” Zircons in Magmatic Rocks of the Shatak Complex (Southern Urals) and Their Petrogenic Implications. Dokl. Earth Sc. 482, 1270–1274 (2018). https://doi.org/10.1134/S1028334X18100124

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  • DOI: https://doi.org/10.1134/S1028334X18100124

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