Email this article Age and sources of detrital zircons from Jurassic conglomerates of the Strelka Depression (northern frame of the Mongol-Okhotsk fold belt)
- Authors: Zaika V.A.1, Sorokin A.A.1, Kovach V.P.2, Sorokin A.P.1, Kotov A.B.2
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Affiliations:
- Institute of Geology and Natural Management of Far Eastern Branch of Russian Academy of Sciences
- Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
- Issue: Vol 485, No 4 (2019)
- Pages: 474-478
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/14214
- DOI: https://doi.org/10.31857/S0869-56524854474-478
- ID: 14214
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Abstract
The article presents the results of U-Th-Pb geochronological studies of clastic zircons from cement of the Jurassic conglomerates of the Strelka Depression extended in a sublatitudinal direction along the border between the southern margin of the Selengino-Stanovoy Superterrane and the Mongol-Okhotsk fold belt. It has been shown that Paleoproterozoic and Neoarchean zircons dominate in the conglomerate cement. This indicates that the main demolition of the material to the sedimentation basin was carried out from the southeastern frame of the North Asian Craton (from the north in modern coordinates). In our view, the Strelka Depression formed after the completion of orogenic processes associated with the formation of the Mongolo-Okhotsk structure.
About the authors
V. A. Zaika
Institute of Geology and Natural Management of Far Eastern Branch of Russian Academy of Sciences
Email: sorokin@ascnet.ru
Russian Federation, 1, Relochniy lane, Blagoveshchensk, 675000
A. A. Sorokin
Institute of Geology and Natural Management of Far Eastern Branch of Russian Academy of Sciences
Author for correspondence.
Email: sorokin@ascnet.ru
Russian Federation, 1, Relochniy lane, Blagoveshchensk, 675000
V. P. Kovach
Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
Email: sorokin@ascnet.ru
Russian Federation, 2, Makarova embankment, St.Petersburg, 199034
A. P. Sorokin
Institute of Geology and Natural Management of Far Eastern Branch of Russian Academy of Sciences
Email: sorokin@ascnet.ru
Corresponding Member of the Russian Academy of Sciences
Russian Federation, 1, Relochniy lane, Blagoveshchensk, 675000A. B. Kotov
Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
Email: sorokin@ascnet.ru
Russian Federation, 2, Makarova embankment, St.Petersburg, 199034
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