Primary Data on U/Pb-Isotope Ages and Lu/Hf-Isotope Geochemical Systematization of Detrital Zircons from the Lopatinskii Formation (Vendian–Cambrian Transition Levels) and the Tectonic Nature of Teya–Chapa Depression (Northeastern Yenisei Ridge)

The main results are presented on U/Pb-isotope dating of 100 detrital zircons and, selectively, on the Lu/Hf-isotope system of 43 grains from sandstones of the Lopatinskii formation (the lower stratigraphic level of the Chingasan group). Ages from 896 ± 51 to 2925 ± 38 Ma were obtained with a pronou...

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Bibliographic Details
Published in:Doklady earth sciences 2018-03, Vol.479 (1), p.286-289
Main Authors: Kuznetsov, N. B., Priyatkina, N. S., Rud’ko, S. V., Shatsillo, A. V., Collins, W. J., Romanyuk, T. V.
Format: Article
Language:English
Subjects:
Cambrian
Earth and Environmental Science
Earth Sciences
Geochemistry
Geologic depressions
Geology
Isotopes
Lead
Probability theory
Radiometric dating
Sandstone
Stratigraphy
Zirconium
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Summary:The main results are presented on U/Pb-isotope dating of 100 detrital zircons and, selectively, on the Lu/Hf-isotope system of 43 grains from sandstones of the Lopatinskii formation (the lower stratigraphic level of the Chingasan group). Ages from 896 ± 51 to 2925 ± 38 Ma were obtained with a pronounced maximum of ~1890 Ma in the curve of probability density, along with ε Hf estimates from +8.4 to–15.1, which allow one to throw doubt upon the molasse nature of the Lopatinskii formation.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X18030042