Rchr
J-GLOBAL ID：201601017415003408
Update date: Oct. 11, 2024
Okazaki Keishi
オカザキ ケイシ | Okazaki Keishi
Affiliation and department：
Job title：
Associate Professor
Homepage URL (1)：
https://sites.google.com/view/keishiokazaki-jamstec/home
Research field (1)：
Solid earth science
Research theme for competitive and other funds (15)：
- 2024 - 2028 回転式DACによる超高圧高温変形実験から明らかにする深部スラブの変形特性
- 2023 - 2026 Further Advanced study of relationship between intraslab and slow earthquakes
- 2022 - 2026 Experimental study of fracturing and dissolution/precipitation processes in serpentinite: Implications for recurrence times of deep slow earthquakes
- 2021 - 2026 超高圧超大歪み変形実験による全マントル領域を網羅する地球内部レオロジー断面の決定
- 2022 - 2025 超巨大地震発生域の高温高岩圧高間隙水圧環境を再現した岩石変形実験への挑戦
- 2021 - 2025 A unified understanding of fault friction in subduction zone considering material diversity and diagenesis
- 2020 - 2024 New approach for the mechanical properties and initiation of plate tectonics
- 2023 - 回転式ダイヤモンドアンビルセルを用いた地球深部で発生する深発地震断層形成過程の直接観察
- 2019 - 2023 配位環境分析に基づく続成作用が重元素安定同位体比に与える影響の解明
- 2018 - 2022 Rheology of the plate interface from shallow to deep subduction zone: effects of fluids and prograde metamorphism
- 2019 - 2021 The challenge of deformation experiments under the in-situ temperature, lithostatic and pore fluid pressures condition at the source region of deep slow earthquakes
- 2018 - 2021 Petrophysical studies involving petrological descriptions: Implications for the analysis of oceanic Moho discontinuity
- 2017 - 2019 Effect of diagenesis on the rheology of subducting sediments and its possible relation to slow earthquakes
- 2014 - 2017 Experimental study on mechanical and hydraulic properties during lithfication of sediments and fault gouge
- 2012 - 2013 蛇紋岩の高温高圧変形実験に基づくスロー地震発生メカニズムの解明
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Papers (33)：
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Shintaro Azuma, Keishi Okazaki, Kentaro Uesugi, Masahiro Yasutake, Bunrin Natsui, Eranga Jayawickrama, Keiya Ishimori, Yoshiyuki Okuda, Yohan Park, Ryuichi Nomura. Near-infrared focused heating method for the rotational diamond anvil cell. Review of Scientific Instruments. 2024. 95. 7
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Yuya Akamatsu, Ikuo Katayama, Keishi Okazaki, K. Michibayashi. Paleo-Permeability Structure of the Crustal Section of the Samail Ophiolite Based on Automated Detection of Veins in X-Ray CT Core Images From the Oman Drilling Project. Geochemistry, Geophysics, Geosystems. 2023. 24. 6
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Yuya Akamatsu, Kumpei Nagase, Natsue Abe, Keishi Okazaki, Kohei Hatakeyama, Ikuo Katayama. Cross-Property Relationship Between Electrical Resistivity and Elastic Wave Velocity of Crustal Rocks From the Oman Drilling Project Hole GT3A: Implications for in Situ Geophysical Properties of Oceanic Crust. Journal of Geophysical Research: Solid Earth. 2023. 128. 6
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Naotaka Tomioka, Akira Yamaguchi, Motoo Ito, Masayuki Uesugi, Naoya Imae, Naoki Shirai, Takuji Ohigashi, Makoto Kimura, Ming-Chang Liu, Richard C. Greenwood, et al. A history of mild shocks experienced by the regolith particles on hydrated asteroid Ryugu. Nature Astronomy. 2023. 7. 6. 669-677
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Ikuo Katayama, Keishi Okazaki, Atsushi Okamoto. Role of mantle carbonation in trench outer-rise region in the global carbon cycle. Island Arc. 2023. 32. 1
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MISC (11)：
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谷川亘, 村山雅史, 井尻暁, 廣瀬丈洋, 岡崎啓史, 濱田洋平, 浦本豪一郎, 星野辰彦, 山本裕二, 正木裕香, et al. A seafloor survey using multiple methodologies to verify the existence of a village “Kuroda-gori” submerged after a historical Nankai Earthquake in Nomi Bay, Kochi Prefecture. 日本地球惑星科学連合大会予稿集(Web). 2021. 2021
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谷川亘, 村山雅史, 村山雅史, 井尻暁, 廣瀬丈洋, 浦本豪一郎, 星野辰彦, 田中幸記, 山本裕二, 濱田洋平, et al. A Seafloor Survey Using Multiple Methodologies to Verify the Existence of a Village Submerged after a Historical Nankai Earthquake in Nomi Bay, Kochi Prefecture. 沿岸海洋研究. 2021. 59. 1
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長瀬薫平, 片山郁夫, 畠山航平, 赤松祐哉, 岡崎啓史, 阿部なつ江, 道林克禎. Pore geometry in diabase collected by the Oman DP inferred from elastic wave velocity. 日本地球惑星科学連合大会予稿集(Web). 2020. 2020
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阿部なつ江, 岡崎啓史, GREEVE Annika, 片山郁夫, 畠山航平, 赤松祐哉, ULVEN Ole Ivar, CORDONNIER Benoit, HONG Gilbert, ZHU Wenlu, et al. 「ちきゅう」船上ラボにおけるICDPオマーン陸上掘削コアの岩石物性計測結果について. ブルーアースサイエンス・テク要旨集. 2019. 2019
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鈴木孝弘, 濱田洋平, 廣瀬丈洋, 谷川亘, 岡崎啓史, 多田井修. 室内掘削実験を通した掘削等価強度法の検証. 日本地質学会学術大会講演要旨. 2018. 125th. 276
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Lectures and oral presentations (36)：
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ICDPオマーン掘削計画BT1Bサイトにおいて採取されたリストベナイトのX線CTコア画像から推定される鉱物組み合わせ
(日本地球惑星科学連合2021年大会 2021)
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排水条件下における高温高封圧高間隙水圧岩石変形実験の予察的結果
(日本地球惑星科学連合2021年大会 2021)
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Pore pressure control for Griggs apparatus
(Workshop on experimental solid medium rock deformation 2020)
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Experimental investigation of dehydration weakening and embrittlement of hydrous minerals
(Intermediate and Deep Earthquakes: Observation and Modeling /College de France 2018)
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Unstable fault slip induced by lawsonite dehydration in blueschist: Implication for the seismicity in the subducting oceanic crusts
(AGU Fall Meeting 2015)
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Work history (9)：
- 2022/04 - 現在 Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research Adjunct Scientist
- 2022/04 - 現在 Hiroshima University Earth and Planetary Systems Science Program Associate Professor
- 2016/10 - 2022/03 JAMSTEC Kochi Institute for Core Sample Research Scientist
- 2018/04 - 2018/09 Tohoku University
- 2016/10 - 2016/12 Brown University Dept. of Earth, Environmental & Planetary Sciences
- 2014/04 - 2016/09 Brown University Dept. of Earth, Environmental & Planetary Sciences Postdoctoral Research Associate
- 2013/04 - 2014/03 Hiroshima University Department of Earth & Planetary Systems Science JSPS Research Fellow (PD)
- 2013/04 - 2014/03 Brown University Dept. of Earth, Environmental & Planetary Sciences Visiting Researcher
- 2012/04 - 2013/03 Hiroshima University Department of Earth & Planetary Systems Science JSPS Research Fellow (DC2)
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Committee career (2)：
- 2024/06 - 現在 日本地質学会 代議員
- 2022/04 - 現在 Japan Drilling Earth Consortium ICDP division executive committee member
Awards (2)：
- 2022/09 - Geological Society of Japan Sakuyama Masanori Award
- 2011/05 - 日本地球惑星科学連合 地球惑星科学連合大会学生優秀発表賞
Association Membership(s) (3)：
JAPAN GEOSCIENCE UNION
, THE GEOLOGICAL SOCIETY OF JAPAN
, American Geophysical Union
