The Vendian Vorogovka Group of Yenisei Ridge: Chemostratigraphy and results of U–Pb dating of detrital zircons


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Application of the method of isotope stratigraphy showed that the 87Sr/86Sr ratio in the least altered carbonate rocks of the Severnaya Rechka and Sukhaya Rechka formations in the Vorogovka Group of Yenisei Ridge ranges from 0.70813 to 0.70828, and δ13C varies from –0.7 to +1.8‰. Comparison of these data with similar data for the Late Precambrian sequences from other regions provides evidence for the Vendian age of the Vorogovka Group. This is supported by the results of LA ICP-MS U–Pb dating of detrital zircons from sandstone of the Severnaya Rechka Formation, which is the basal level of the group: the mid-weight age of the youngest zircon population is 584 ± 3 Ma.

Sobre autores

I. Vishnevskaya

Sobolev Institute of Geology and Mineralogy, Siberian Branch; Novosibirsk State University

Autor responsável pela correspondência
Email: vishia@igm.nsc.ru
Rússia, Novosibirsk, 630090; Novosibirsk

E. Letnikova

Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: vishia@igm.nsc.ru
Rússia, Novosibirsk, 630090

A. Proshenkin

Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: vishia@igm.nsc.ru
Rússia, Novosibirsk, 630090

A. Maslov

Sobolev Institute of Geology and Mineralogy, Siberian Branch; Zavaritsky Institute of Geology and Geochemistry, Ural Branch

Email: vishia@igm.nsc.ru
Rússia, Novosibirsk, 630090; Yekaterinburg, 620016

V. Blagovidov

Novosibirsk State University

Email: vishia@igm.nsc.ru
Rússia, Novosibirsk

D. Metelkin

Novosibirsk State University; Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch

Email: vishia@igm.nsc.ru
Rússia, Novosibirsk; Novosibirsk, 630090

N. Priyatkina

University of Newcastle

Email: vishia@igm.nsc.ru
Austrália, Callaghan

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