Email this article Zircons in Gabbro of the Nurali Massif (Southern Ural)
- Authors: Krasnobaev A.A.1, Valizer P.M.2, Anfilogov V.N.3, Medvedeva E.V.2, Busharina S.V.1
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Affiliations:
- Institute of Geology and Geochemistry, Ural Branch
- Ilmen Nature Reserve, Ural Branch
- Institute of Mineralogy, Ural Branch
- Issue: Vol 480, No 2 (2018)
- Pages: 741-745
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/193343
- DOI: https://doi.org/10.1134/S1028334X18060041
- ID: 193343
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Abstract
The formation time of 410.5 ± 1.1 Ma (zircon U/Pb SHRIMP) and the duration of rock crystallization (2–2.5 Ma) were determined for gabbro from the Nurali massif. The gabbro zircons showed a complicated polyphase structure. A new polygenous type of zonality including traces of primary growth and of the processes of crushing, dissolution, and substitution was discovered in the zircons. The formations of gabbro and ultramafites (lherzolites) of the massif are separated by a time break of 30–35 Ma determined by the genetic discontinuance.
About the authors
A. A. Krasnobaev
Institute of Geology and Geochemistry, Ural Branch
Author for correspondence.
Email: krasnobaev@igg.uran.ru
Russian Federation, Yekaterinburg, 620016
P. M. Valizer
Ilmen Nature Reserve, Ural Branch
Email: krasnobaev@igg.uran.ru
Russian Federation, Miass, 456317
V. N. Anfilogov
Institute of Mineralogy, Ural Branch
Email: krasnobaev@igg.uran.ru
Russian Federation, Miass, 456317
E. V. Medvedeva
Ilmen Nature Reserve, Ural Branch
Email: krasnobaev@igg.uran.ru
Russian Federation, Miass, 456317
S. V. Busharina
Institute of Geology and Geochemistry, Ural Branch
Email: krasnobaev@igg.uran.ru
Russian Federation, Yekaterinburg, 620016
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