Abstract
Data on the U–Pb (SIMS SHRIMP-II) age (3628 ± 38 and 2845 ± 65 Ma) of zircon from the inclusion of mafic granulite in gneiss–enderbites of the Bug complex in Ukraine are obtained. A zircon age of 3628 ± 38 Ma for the first time has allowed us to identify the occurrence of basic magmatism at the Paleo- and Eoarchean boundary in the Bug region. The age of 2845 ± 65 Ma dates the imposed metamorphism manifested everywhere in the Bug region that led to considerable amphibolization and partial melting of the rock.
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ACKNOWLEDGMENTS
This work was supported by program no. 19 of the Presidium of the Russian Academy of Sciences (project no. 0153-2018-0007) and R&D program of the Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences (project nos. 0153-2018-0001 and 0153-2018-0004).
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Translated by L. Mukhortova
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Lobach-Zhuchenko, S.B., Kaulina, T.V., Marin, Y.B. et al. Paleoarchean U–Pb (SIMS SHRIMP-II) Age of Mafic Granulites from the Bug Complex, Ukrainian Shield. Dokl. Earth Sc. 484, 101–104 (2019). https://doi.org/10.1134/S1028334X19010240
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DOI: https://doi.org/10.1134/S1028334X19010240