Late Vendian Complexes in the Structure of Metamorphic Basement of the Fore Range Zone, Greater Caucasus
- Authors: Kamzolkin V.A.1, Latyshev A.V.1,2, Vidyapin Y.P.1, Somin M.L.1, Smul’skaya A.I.1, Ivanov S.D.1
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Affiliations:
- Schmidt Institute of Physics of the Earth
- Department of Geology
- Issue: Vol 52, No 3 (2018)
- Pages: 331-345
- Section: Article
- URL: https://bakhtiniada.ru/0016-8521/article/view/156702
- DOI: https://doi.org/10.1134/S0016852118030020
- ID: 156702
Cite item
Abstract
The paper presents new data on the composition, age, and relationships (with host and overlying deposits) of intrusive rocks in the basement of the Fore Range zone (Greater Caucasus), in the Malaya Laba River Basin. The evolutionary features of intrusive units located within the Blyb metamorphic complex are described. It is shown for the first time that the lower levels of this complex are, in a structural sense, outcrops of the Late Vendian basement. The basement is composed of the Balkan Formation and a massif of quartz metadiorites that intrudes it; for the rocks of this massif, ages ranging from 549 ± 7.4 to 574.1 ± 6.7 Ma are obtained for three U–Pb datings by the SHRIMP-II method. The Herzyinan magmatic event is represented by a group of granodiorite intrusions penetrating the Blyb complex on a series of faults extending along its boundary with the Main Range zone. The obtained estimate for the U–Pb age of one of the intrusions (319 ± 3.8 Ma) corresponds to the end of the Serpukhovian stage of the Early Carboniferous.
About the authors
V. A. Kamzolkin
Schmidt Institute of Physics of the Earth
Author for correspondence.
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242
A. V. Latyshev
Schmidt Institute of Physics of the Earth; Department of Geology
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242; Moscow, 119991
Yu. P. Vidyapin
Schmidt Institute of Physics of the Earth
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242
M. L. Somin
Schmidt Institute of Physics of the Earth
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242
A. I. Smul’skaya
Schmidt Institute of Physics of the Earth
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242
S. D. Ivanov
Schmidt Institute of Physics of the Earth
Email: vkamzolkin@gmail.com
Russian Federation, Moscow, 123242
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