Email this article U-Pb (SHRIMP) age of zircons from granitoid pebbles of Kukkarauk conglomerates of Vendian asha series in the Alatau anticlinorium (Southern Urals)
- Authors: Krasnobaev A.A.1,2, Puchkov V.N.1,2, Sergeeva N.D.2, Busharina S.V.1
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Affiliations:
- Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences
- Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences
- Issue: Vol 486, No 5 (2019)
- Pages: 598-602
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/14498
- DOI: https://doi.org/10.31857/S0869-56524865598-602
- ID: 14498
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Abstract
The absence of reliable radiometric data in Vendian deposits of the Uralian and other regions resulted in uncertainty of the ideas of the age of the lower boundary of Vendian. According to the decision of the Interdepartment Stratigraphic Committee, it is located at 600 ±10 Ma. Analysing zircons of granitoid pebbles from Kukkarauk Formation of the standard sections of Vendian in the Alatau anticlinorium, the authors obtained a concordant SHRIMP date - 713.6 ± 6.1 Ma; practically, it is up to now the only reliable date that can be used as a reference for the rocks in the provenance area of the Vendian basin in the Southern Urals which witness for a Vendian erosion of granites which are alike the granites of the Mazara and Barangulovo massifs, situated in the northern part of the Uraltau zone of the Southern Urals, to the east of the area of Vendian sedimentation.
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About the authors
A. A. Krasnobaev
Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences; Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences
Email: puchkv@ufaras.ru
Russian Federation, 15, Akademik Vonsovskij str., Ekaterinburg, 620016; 16, Karl Marx street, Ufa, Bashkortostan, 450077
V. N. Puchkov
Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences; Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences
Author for correspondence.
Email: puchkv@ufaras.ru
Corresponding Member of the Russian Academy of Sciences
Russian Federation, 15, Akademik Vonsovskij str., Ekaterinburg, 620016; 16, Karl Marx street, Ufa, Bashkortostan, 450077N. D. Sergeeva
Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences
Email: puchkv@ufaras.ru
Russian Federation, 16, Karl Marx street, Ufa, Bashkortostan, 450077
S. V. Busharina
Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences
Email: puchkv@ufaras.ru
Russian Federation, 15, Akademik Vonsovskij str., Ekaterinburg, 620016
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