高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
ISSN-L : 0917-639X
特集:核―マントルの相互作用と共進化に関する研究の進展
D111型装置を用いた高圧変形実験による地球深部レオロジーの研究
西原 遊辻野 典秀久保 友明山崎 大輔土居 峻太今村 公裕芳野 極
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2020 年 30 巻 2 号 p. 78-84

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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 apparatus, 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 rheology including rheology of hcp iron, rheology of bridgmanite and post-spinel, and olivine-ringwoodite phase transformation under deformation.

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