Email this article Age and sources of the metasedimrntary rocks of the Tokur terrane in the Mongol-Okhotsk fold belt: results of the U–Pb geoсhronological and Lu–Hf isotope studies
- Authors: Zaika V.A.1, Sorokin A.A.1, Sorokin A.P.1
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Affiliations:
- Institute of Geology and Natural Management of Far Eastern Branch of Russian Academy of Sciences
- Issue: Vol 486, No 4 (2019)
- Pages: 446-450
- Section: Geology
- URL: https://journals.eco-vector.com/0869-5652/article/view/14451
- DOI: https://doi.org/10.31857/S0869-56524864446-450
- ID: 14451
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Abstract
This paper presents the results of U–Pb (LA–ICP–MS) and Lu–Hf isotope studies of detrital zircons from metasedimentary rocks of the Tokur Terrane. It has been shown that metasedimentary rocks of the Tokur and Ekimchan formations are characterized by similar age peaks of detrital zircons, which indicates a close (or same) age of these formations. The lower age of the sedimentation is determined by the age of the youngest zircons of 326–323 Ma. The upper age boundary is determined of 254–251 Ma, based on the intruded of the Late Permian granitoids. The main sources of zircons in the metasedimentary rocks of the Tokur Terrane are the igneous and metamorphic complexes of the southeast framing of the North Asia Craton. The Tokur Terrane can be considered as a fragment of the Paleozoic accretionary complex, the formation in front of the southeastern margin of the North Asia Craton.
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
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, 675000
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