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

Takumi Kato, Mineo Kumazawa

研究成果: Contribution to journalArticle査読

76 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)803-805
ページ数3
ジャーナルNature
316
6031
DOI
出版ステータス出版済み - 12 1 1985

All Science Journal Classification (ASJC) codes

  • 一般

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