Inclusions of crichtonite group minerals in pyropes from the Internatsionalnaya kimberlite pipe, Yakutia

D. I. Rezvukhin*, V. G. Malkovets, I. S. Sharygin, D. V. Kuzmin, A. A. Gibsher, K. D. Litasov, N. P. Pokhilenko, N. V. Sobolev

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The results of study of crichtonite group minerals in pyropes from the Internatsionalnaya kimberlite pipe are reported. Most of the studied samples are characterized by high concentrations of Sr, Ca, Na, and LREEs in comparison with minerals of the LIMA series from kimberlites of South Africa, whereas the average concentrations of Ba and K are significantly lower. Crichtonite group minerals in pyropes are characterized by predomination of Na over K in most samples and by a high concentration of Al2O3 (up to 4.5 wt %). Findings of inclusions of crichtonite group minerals with high concentrations of incompatible elements provide evidence for the metasomatic origin of host chromium-rich pyropes.

Original languageEnglish
Pages (from-to)206-209
Number of pages4
JournalDoklady Earth Sciences
Volume466
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016
Externally publishedYes

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