Doklady Earth Sciences

, Volume 476, Issue 1, pp 982–985 | Cite as

The first find of spinel peridotite in the Southern Kazakhstan: Structure, composition, and parameters of high-pressure metamorphism

  • A. V. Pilitsyna
  • A. A. Tretyakov
  • T. A. Alifirova
  • K. E. Degtyarev
  • E. V. Kovalchuk
Geology
  • 24 Downloads

Abstract

Spinel peridotite, metamorphosed in high-pressure conditions, was first described within the Western part of the Central Asian Orogenic Belt. The spinel peridotite has the characteristics of Mg–Cr ultramafites indicating the mantle origin of its protolith. The preliminary estimation of the metamorphism peak for the model system MgO–Al2O3—SiO2–Cr2O3 (MASCr) is 10–19 kbar at 680–800°C.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • A. V. Pilitsyna
    • 1
  • A. A. Tretyakov
    • 1
  • T. A. Alifirova
    • 2
  • K. E. Degtyarev
    • 1
  • E. V. Kovalchuk
    • 3
  1. 1.Geological InstituteRussian Academy of SciencesMoscowRussia
  2. 2.Sobolev Institute of Geology and Mineralogy, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  3. 3.Institute of Geology of Ore Deposits, Mineralogy, Petrography, and GeochemistryRussian Academy of SciencesMoscowRussia

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