Garnet phase of MgSiO3 filling the pyroxene-ilmenite gap at very high temperature

Takumi Kato, Mineo Kumazawa

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

Melting experiments on MgSiO3, the major constituent of the Earth's mantle and planetary interiors, have now been conducted at a static pressure of 20 GPa. These experiments reveal the presence of a new garnet-like non-cubic phase of MgSiO3, which melts congruently at 2,250°C. This new silicate phase and its stability have significant implications for mantle mineralogy, chemical fractionation by partial melting and also for the occurrence of aluminium-deficient cubic garnet (majorite) in shocked meteorites. These high-pressure experiments at temperatures 2,000°C have been made possible by the development of a large-volume high-pressure device at Nagoya University1-4.

Original languageEnglish
Pages (from-to)803-805
Number of pages3
JournalNature
Volume316
Issue number6031
DOIs
Publication statusPublished - Dec 1 1985

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Garnet phase of MgSiO<sub>3</sub> filling the pyroxene-ilmenite gap at very high temperature'. Together they form a unique fingerprint.

  • Cite this