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Uranium-Bearing Srilankite from High-Pressure Garnetites of the Southern Urals: First Data

Authors
  • Gottman, I. A.1
  • Pushkarev, E. V.1
  • Khiller, V. V.1
  • 1 Russian Academy of Sciences, Institute of Geology and Geochemistry, Ural Branch, Yekaterinburg, Russia , Yekaterinburg (Russia)
Type
Published Article
Journal
Doklady Earth Sciences
Publisher
Pleiades Publishing
Publication Date
Apr 01, 2018
Volume
479
Issue
2
Pages
529–533
Identifiers
DOI: 10.1134/S1028334X18040244
Source
Springer Nature
License
Yellow

Abstract

This work presents the results of studying srilankite, a rare zirconium titanate (ZrTi2O6), associated with ilmenite, rutile, zircon, uraninite, and other minerals discovered in high-pressure garnetites of the lherzolite Mindyak massif (Southern Urals). Srilankite occurs as inclusions in ilmenite and rutile of up to several tens of microns in size. It was established for the first time that srilankite contains a significant UO2 admixture (up to 20%). The negative correlation between Zr and U is evidence of isomorphism in the srilankite–brannerite system. The association of srilankite with high-Zr rutile indicates that formation of these minerals occurred at T > 850°С.

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