Abstract
The results of U–Pb geochronological (SIMS) study of zircons from granitoids of the Konstantinovskii Stock located 6 km from the Sukhoi Log gold deposit are reported. The 206Pb/238U weighted average age for long-prismatic crystals, rims, and cores of the early stage of crystallization of zoned zircons is 303 ± 3 Ma (MSWD = 0.87). The data obtained on the age of xenogenic cores of zoned zircons of the Konstantinovskii Stock granitoids indicate consolidated basement of the Bodaibo epicratonic sedimentary basin and its intraplate tectono-thermal transformation in the Archean, Paleoproterozoic and Paleozoic.
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ACKNOWLEDGMENTS
The authors are grateful to L.A. Neimark for the attention to this work and to G.P. Pleskach for the completed drawing.
Funding
This study was conducted as a part of the scientific themes of the Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, project no. 0153–2019–0001, Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry, Russian Academy of Sciences, Laboratory of Rare-Metal Magmatism and was supported by the Russian Foundation for Basic Research, project no. 18–05–00724.
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Translated by A. Bobrov
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Rytsk, E.Y., Tolmacheva, E.V., Velikoslavinsky, S.D. et al. Results of the Study of Zircon (SIMS) from Granitoids of the Konstantinovskii Stock (Area of the Sukhoi Log Gold Deposit): Age, Sources, and Geological Consequences. Dokl. Earth Sc. 496, 146–150 (2021). https://doi.org/10.1134/S1028334X21020173
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DOI: https://doi.org/10.1134/S1028334X21020173