Studies of deep earth rheology based on high-pressure deformation experiments using d111-type apparatus

Yu Nishihara, Daisuke Yamazaki, Noriyoshi Tsujino, Shunta Doi, Tomoaki Kubo, Masahiro Imamura, Takashi Yoshino

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A new high-pressure deformation apparatus D111-type apparatus, which is a larger version of the deformation T-Cup, was recently installed on a synchrotron beamline NE7A at PF-AR, KEK, Tsukuba, Japan. In this ap-paratus, well-controlled deformation experiments can be conducted up to ~30 GPa by driving two opposed second-stage anvils in the Kawai-type multi-anvil assembly. High-pressure and high-temperature deformation experiments with quantitative stress and strain measurements have been carried out using the D111-type apparatus in conjunction with synchrotron radiation. Some studies have been conducted to investigate deep Earth rhe-ology including rheology of hcp iron, rheology of bridgmanite and post-spinel, and olivine-ringwoodite phase transformation under deformation.

    Original languageEnglish
    Pages (from-to)78-84
    Number of pages7
    JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
    Volume30
    Issue number2
    DOIs
    Publication statusPublished - 2020

    Keywords

    • D111-type apparatus
    • DT-Cup apparatus
    • Deformation
    • High-pressure and high-temperature
    • Inner core
    • Lower mantle
    • Rheology

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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