Okamoto Atsushi

Affiliation and department：

Research field (2)： Earth resource engineering, energy science , Solid earth science

Research keywords (12)：海底硫化物チムニーの電気特性 , Carbonation , silica , Oman Ophiolite , Sanbagawa metamorphic belt , serpentinization , パターン形成 , 水熱実験 , 岩石組織 , 地熱システム , 変成作用 , 岩石ー水相互作用

Research theme for competitive and other funds (31)：

2022 - 2027 データ記述科学を用いた材料解析とそのイノベーション展開
2022 - 2027 Generation of CO2 fluid and mantle carbonation in subduction zones
2022 - 2027 Spatio-temporal dynamism of fluid pressure and permeability in arc crust
2022 - 2027 Spatio-temporal dynamisms of fluid-pressure and permeability in arc crusts
2024 - 2026 Development of thermoelectric conversion function associated with the development of zonal structure in submarine hydrothermal vents.

2024 - 2026 Do quartz veins record fluid pressure fluctuations in seismogenic zones? -Verification from synthetic quartz veins

2022 - 2025 Mechanisms of accelerated mineral carbonation through self-promoting reactions

2021 - 2025 Unified understanding of fault friction in subduction zones considering material diversity and diagenesis

2021 - 2025 A unified understanding of fault friction in subduction zone considering material diversity and diagenesis

2022 - 2024 Exploration of p-type semiconductor chimneys at seafloor based on microstructural analysis and thermoelectric characterization

2022 - 2024 Solution chemistry dependency on fluid-rock reactions within subduction zones and its hydrological responses

2017 - 2022 Permeability behavior in high-temperature ductile crust and prediction of spatiotemporal evolution in supercritical geothermal resource

2017 - 2021 Development of rock texture and fluid generation processes within convergent plate boundary

2016 - 2021 Physical properties of uppermost mantle structure and the Mohorovicic seismic discontinuity

2019 - 2021 Multi-scale modeling of water-fluid reactions based on observations on nano strtuctures

2018 - 2020 Super-resolution imaging for understanding hierarchical structures produced by water-rock reactions and mass transfer

2013 - 2018 Earth Process Model Development by Data Driven Analysis based on Sparse Modeling

2014 - 2017 Energetic ion induced excitation dynamics of hydrogen molecule in divertor plasma

2014 - 2017 Fundamental study on mineral vein formation by sealing experiment of rock fracture

2013 - 2017 Science and Technology of Geothermal Energy Frontier

2014 - 2016 Modeling of fracturing induced by hydration and hydration reactions

2012 - 2014 蛇紋岩化作用に伴う反応-物質移動のフィードバック

2011 - 2014 Mechanism of serpentinization and fluid transport in oceanic lithosphere

2011 - 2012 Fractionation during formation of mineral/fluid inclusions: A new approach for understanding of rock-forming processes

2010 - 2012 Upgrading of Geosphere Environmental Informatics for diversity of soil environmental standard

2010 - 2011 沈み込み帯浅部における流体移動と水-岩石相互作用に関する実験的研究

2008 - 2009 Fluid flow and mineral precipitation within fractures under crustalenvironments

2007 - 2009 Mechanisms of extraction of heavy metals from marine sediments development of sealing technology

2006 - 2007 固体圧変形実験による反応進行下における玄武岩の変形メカニズムの解明

2003 - 2005 角閃石を用いた高圧変成岩の温度・圧力・歪み速度履歴の定量的解析

2000 - 2002 岩石学・構造地質学的手法による三波川変成帯発達過程の解明

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Papers (186)：

Atsushi Okamoto, Edward Vinis. Oscillations in fluid pressure caused by silica precipitation in a fracture. Nature Communications. 2025
Haruo Igarashi, Daiki Kido, Yutaka Ishii, Yasuhiro Niwa, Atsushi Okamoto, Masao Kimura. Visualization of four-dimensional X-ray absorption fine structure data using a virtual reality system. Journal of Synchrotron Radiation. 2025. 32. 1. 162-170
Kazuki Yoshida, Atsushi Okamoto, Ryosuke Oyanagi, Yasuhiro Niwa, Masao Kimura. Estimating the iron oxidation state of serpentinite using X-ray absorption fine structure spectroscopy. American Mineralogist. 2025
Manzshir Bayarbold, Atsushi Okamoto, Masaoki Uno, Otgonbayar Dandar, Mayuko Fukuyama, Geri Agroli, Noriyoshi Tsuchiya. Tracking HFSE associated with high salinity fluid during HP metamorphism in the Zavkhan Terrane, Western Mongolia. Lithos. 2024. 490-491
Ryoichi Yamada, Jumpei Sugioka, Atsushi Okamoto. Relationship between characteristic ore textures and geologic situation of the Kuroko deposits. 2024. 74. 2. 79-94

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MISC (77)：

Kazuki Yoshida, Ryosuke Oyanagi, Masao Kimura, Oliver Plümper, Mayuko Fukuyama, Atsushi Okamoto. Transient fluid flow recorded in the Crust-Mantle transition zone of the Oman Ophiolite. 2023
松野哲士, 宇野正起, 岡本敦. Machine-learning application to igneous and metamorphic rock compositions: Quantitative estimation of compositional changes recorded in subduction-related metamorphic rocks. 日本地球化学会年会要旨集(Web). 2023. 70th
夏目樹, 纐纈佑衣, 道林克禎, 岡本敦. Mineralogical and textural diversity induced by water-rock interaction within a hydrated ductile shear zone occurred in the vicinity of the Moho in oceanic plate. 日本地質学会学術大会(Web). 2023. 130th
Kazuki Yoshida, Atsushi Okamoto, Ryosuke Oyanagi, Masao Kimura. Rapid fluid infiltration recorded in the brucite-rich reaction zone along the antigorite veins from the Oman ophiolite. 2022
松野哲士, 宇野正起, 岡本敦. Intensity evaluation of of element transfer and its controlling parameters: Differences between Northwest and South Pacific oceanic plates. 日本地質学会学術大会(Web). 2022. 129th

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Books (1)：

沈み込み帯の含水マントルの炭酸塩化作用ー自己促進的な反応ー破壊カップリング現象ー
月刊地球「スロー地震に関する地質学的・実験的・地震学的研究の連携と進展」 2022

Lectures and oral presentations (46)：

機械学習を用いた地熱地域の温度構造推定手法の開発
(資源・素材(Web) 2019)
多成分溶液の光散乱現象を用いた臨界点決定方法の実験的研究
(日本地球惑星科学連合大会予稿集(Web) 2019)
超臨界条件の水-岩石相互作用の理解のための熱力学データ構築の試み
(日本地熱学会 2018)
超臨界条件の岩石-水相互作用と斜長石の溶解・析出
(日本地球惑星科学連合大会 2018)
超臨界条件の岩石-水相互作用と斜長石の溶解・析出
(日本地質学会学術大会講演要旨 2018)

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Education (3)：

2000 - 2003 The University of Tokyo
1998 - 2000 The University of Tokyo
1994 - 1998 The University of Tokyo

Professional career (1)：

博士(理学) (東京大学)

Work history (5)：

2020/04 - 現在 Tohoku University Graduate School of Environmental Studies
2011/10 - 2020/03 Tohoku University Graduate School of Environmental Studies
2007/04 - 2011/09 Tohoku University Graduate School of Environmental Studies
2005/10 - 2007/04 Tohoku University Graduate School of Environmental Studies
2003/04 - 2005/09 Shizuoka University

Committee career (5)：

2024/05 - 現在日本地球惑星科学連合広報普及委員会
2024/04 - 現在日本鉱物科学会応用鉱物科学賞選考委員会
2022/04 - 現在 Japan Geoscience Union Delegate of JpGU
2019 - 2022/09 日本鉱物科学会行事委員
2017 - 2022/09 日本地質学会日本地質学雑誌編集委員

Awards (5)：

2024/09 - 日本地質学会小藤文次郎賞 Rupture of wet mantle wedge by self-promoting carbonation
2024/09 - 日本地質学会 H.E. ナウマン賞岩石組織に基づく地殻・マントルにおける岩石-水相互作用のダイナミクスの解読
2021/04 - Japan Geoscience Union Nishida Prize Research on the water-rock interaction within the Earth’s interior and the development of rock texture
2013/09 - 日本地質学会日本地質学会柵山雅則賞沈み込み帯における流体移動と水-岩石相互作用に関する岩石学的実験的研究
2013/09 - 日本鉱物科学会日本鉱物科学会研究奨励賞天然試料解析,および水熱実験による岩石-水相互作用に関する研究

Association Membership(s) (7)：

American Geophysical Union , Geochemical Society , European Geoscience Union , 日本地球惑星科学連合 , 日本地熱学会 , 日本鉱物科学会 , 日本地質学会

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