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First Data on Yatulian (2.1 Ga) Metamorphism in the Belomorian Mobile Belt

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Abstract

The Sm–Nd isotope ages of apoamphibolite eclogites and eclogite-like garnet-clinopyroxene crystalline schists collected in the Chupa and Engozero segments of the Belomorian mobile belt are estimated. Eclogites and eclogite-like garnet–clinopyroxene rocks demonstrated nearly the same isotope age (2119 ± 170 and 2191 ± 39 Ma, respectively) on the same pair of minerals (garnet–clinopyroxene). The age obtained (about 2.1 Ga) is the oldest indicator of the onset of Paleoproterozoic metamorphism in the Belomorian mobile belt.

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ACKNOWLEDGMENTS

This work was performed within the framework of the basic research project (no. 0136-2018-0029) of the Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences. This work was supported by the Russian Foundation for Basic Research (project no. 17-05-00329).

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Authors and Affiliations

  1. Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, 119017, Moscow, Russia

    V. M. Kozlovskiy & E. B. Kurdyukov

  2. Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, 119034, St. Petersburg, Russia

    V. M. Savatenkov & L. B. Terentyeva

  3. Institute of Earth Sciences, St. Petersburg State University, 119034, St. Petersburg, Russia

    V. M. Savatenkov

Authors
  1. V. M. Kozlovskiy
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  2. V. M. Savatenkov
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  3. L. B. Terentyeva
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  4. E. B. Kurdyukov
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Correspondence to V. M. Kozlovskiy.

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Translated by N. Astafiev

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Kozlovskiy, V.M., Savatenkov, V.M., Terentyeva, L.B. et al. First Data on Yatulian (2.1 Ga) Metamorphism in the Belomorian Mobile Belt. Dokl. Earth Sc. 485, 322–326 (2019). https://doi.org/10.1134/S1028334X19030310

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  • DOI: https://doi.org/10.1134/S1028334X19030310

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