In situ Raman Study of ОН-Perovskite MgSi(OH)6 at High Р–Т Parameters (up to 14 GPa, 420°С)

S. V. Goryainov, A. Yu Likhacheva, A. F. Shatskiy, S. V. Rashchenko

Research output: Contribution to journalArticlepeer-review

Abstract

In situ Raman spectroscopy in a diamond anvil cell (DAC) is used to study ОН-perovskite MgSi(OH)6 under compression in water and carbonate fluids at high Р–Т parameters (up to 14 GPa, 420°С). The ОН-perovskite ↔ 10 Å phase + хН2О transition is either partially reversible or irreversible when there is a deficit of water in the system. When ОН-perovskite is compressed in carbonate fluid, the reversible transition shifts slightly to higher pressures, testifying to the drop in the activity of water when carbonate is added in the system.

Original languageEnglish
Pages (from-to)1123-1125
Number of pages3
JournalBulletin of the Russian Academy of Sciences: Physics
Volume84
Issue number9
DOIs
Publication statusPublished - 1 Sep 2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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