Zircons in Gabbro of the Nurali Massif (Southern Ural)


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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.

作者简介

A. Krasnobaev

Institute of Geology and Geochemistry, Ural Branch

编辑信件的主要联系方式.
Email: krasnobaev@igg.uran.ru
俄罗斯联邦, Yekaterinburg, 620016

P. Valizer

Ilmen Nature Reserve, Ural Branch

Email: krasnobaev@igg.uran.ru
俄罗斯联邦, Miass, 456317

V. Anfilogov

Institute of Mineralogy, Ural Branch

Email: krasnobaev@igg.uran.ru
俄罗斯联邦, Miass, 456317

E. Medvedeva

Ilmen Nature Reserve, Ural Branch

Email: krasnobaev@igg.uran.ru
俄罗斯联邦, Miass, 456317

S. Busharina

Institute of Geology and Geochemistry, Ural Branch

Email: krasnobaev@igg.uran.ru
俄罗斯联邦, Yekaterinburg, 620016

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