Rchr
J-GLOBAL ID：202301000788151096   Update date: Apr. 30, 2024

Ishii Takayuki

イシイ タカユキ | Ishii Takayuki
Affiliation and department：
Okayama University The Institute for Planetary Materials

About Okayama University The Institute for Planetary Materials


Job title： Associate Professor
Research field  (1)： Biogeoscience
Research keywords  (6)： high pressure-temperature phase relations ,  crystal chemistry ,  high-pressure phase transition ,  Kawai-type multi-anvil high-pressure apparatus ,  mantle ,  high pressure experiment
Research theme for competitive and other funds  (6)：
  • 2022 - 2026 National Key Research Major Research Plan on West-Pacific Earth System Multispheric Interactions
  • 2019 - 2021 High-pressure-temperature phase relations of basaltic crust under lower-mantle conditions: implications for chemical heterogeneity in the lower mantle
  • 2017 - 2019 High-pressure phase transitions of slab-constituent minerals under lower-mantle conditions
  • 2016 - 2017 High-pressure phase transitions and stabilities of hydrous lower mantle model minerals
  • 2015 - 2016 下部マントル物質の含水条件下における高圧相転移と高圧物性
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Papers (67)：
  • Takayuki Ishii, Giacomo Criniti, Narangoo Purevjav, Tomoo Katsura, Eiji Ohtani. Hydrogen partitioning between stishovite and hydrous phase δ: implications for water cycle and distribution in the lower mantle. Progress in Earth and Planetary Science. 2024
  • Narangoo Purevjav, Hongzhan Fei, Takayuki Ishii, Giacomo Criniti, Yanhao Lin, Ho-Kwang Mao, Tomoo Katsura. Temperature Dependence of H2O Solubility in Al-Free Stishovite. Geophysical Research Letters. 2024. 51. 3
  • Iuliia Koemets, Biao Wang, Egor Koemets, Takayuki Ishii, Zhaodong Liu, Catherine McCammon, Artem Chanyshev, Tomo Katsura, Michael Hanfland, Alexander Chumakov, et al. Crystal chemistry and compressibility of Fe0.5Mg0.5Al0.5Si0.5O3 and FeMg0.5Si0.5O3 silicate perovskites at pressures up to 95 GPa. Frontiers in Chemistry. 2023. 11
  • Giacomo Criniti, Takayuki Ishii, Alexander Kurnosov, Konstantin Glazyrin, Rachel J. Husband, Tiziana Boffa Ballaran. Structure and compressibility of Fe-bearing Al-phase D. American Mineralogist. 2023. 108. 9. 1764-1772
  • Takayuki Ishii, Daniel J. Frost, Eun Jeong Kim, Artem Chanyshev, Keisuke Nishida, Biao Wang, Rintaro Ban, Jianing Xu, Jin Liu, Xiaowan Su, et al. Buoyancy of slabs and plumes enhanced by curved post-garnet phase boundary. Nature Geoscience. 2023
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MISC (4)：
  • A curved post-garnet boundary enhances slab and plume dynamics in the Earth’s mantle. Nature Geoscience. 2023. 16. 9. 766-767
  • Artem Chanyshev, Takayuki Ishii, Tomoo Katsura. Akimotoite-bridgmanite phase transition explains depressed 660-km seismic discontinuity in subduction zones. SPring-8 Research Frontiers 2021. 2022. 96-97
  • Takayuki Ishii, Tomoo Katsura. Sharp 660-km seismic discontinuity explained by extremely narrow binary post-spinel transition. 2020. 74-75
  • Takayuki Ishii, Tomoo Katsura. Complete agreement of the post-spinel transition pressure with the 660-km seismic discontinuity depth. SPring-8 Research Frontiers 2018. 2019. 88-89
Lectures and oral presentations  (22)：
  • Water solubility of aluminous silicas at lower mantle conditions and their implication for water cycle in the deep mantle
    (American Geophysical Union Fall meeting 2023 2023)
  • 非線形クラペイロン勾配を持つMg3Al2Si3O12系ポストガーネット相転移とそのマントルダイナミクスへの影響
    (第64回高圧討論会 2023)
  • 川井型マルチアンビルプレスを用いた技術開発とその地球科学的応用
    (SPRUC地球惑星科学・高圧物質科学 合同サテライト研究会 2023)
  • Developments of Kawai-type multi-anvil technology and their applications to geoscience
    (The 2nd Conference on Physics under Synergetic Extreme Conditions held jointly with the Summer School of SECUF 2023)
  • Water solubility of aluminous stishovite coexisting with hydrous phase δ: Implication for water cycle in the lower mantle
    (Japan Geoscience Union Meeting 2023 2023)
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Education (3)：
  • 2012 - 2015 Gakushuin University Graduate School of Natural Science
  • 2010 - 2012 Gakushuin University Graduate School of Natural Science
  • 2006 - 2010 Gakushuin University Faculty of Science Department of Chemistry
Professional career (2)：
  • Ph.D. of Science (Gakushuin University)
  • M.S. of Science (Gakushuin University)
Work history (7)：
  • 2023/04 - 現在 Okayama University The Institute for Planetary Materials Associate Professor
  • 2021/01 - 2023/03 Center for High Pressure Science & Technology Advanced Research Staff scientist
  • 2019/04 - 2020/12 University of Bayreuth Bayerisches Geoinstitut Principal investigator granted by German Research Foundation
  • 2017/04 - 2019/03 University of Bayreuth Bayerisches Geoinstitut Alexander von Humboldt research fellow
  • 2016/04 - 2017/03 University of Bayreuth Bayerisches Geoinstitut Japan Society for the Promotion of Science overseas research fellow
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Awards (2)：
  • 2021/12 - American Geophysical Union Mineral and Rock Physics Early Career Award
  • 2019/10 - The Japan Society of High Pressure Science and Technology The Encouragement Prize
Association Membership(s) (7)：
Japan Association ,  International Association for the Advancement of High Pressure Science and Technology ,  European High Pressure Research Group ,  American geophysical union ,  International Mineralogical Association ,  Japan Society of High Pressure Science and Technology ,  Japan Geoscience Union
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