Kashiwaya Koki

カシワヤコウキ | Kashiwaya Koki

Affiliation and department：

Research field (3)： Atmospheric and hydrospheric science , Environmental dynamics , Earth resource engineering, energy science

Research keywords (13)： Engineering Geology , Isotope Hydrology , Weathering , Water rock interaction , Mass transport , Groundwater flow , Geothermal fluid , Fault , Groundwater age , Environmental tracer , Geochemistry , Tracer hydrology , Hydrogeology

Research theme for competitive and other funds (4)：

2021 - 2026 Advanced joint research for detection of critical spot in reservoir enabling great promotion of geothermal power generation
2024 - 2025 Clarification of Ore Deposit Generation Process through Estimation of Regional Hydrothermal Flow System in the Past and Present and Potential Assessment of Deposit Existence
2022 - 2025 Clarification of generation process of ore deposits by estimation of present and past regional hydrothermal fluid systems with application to potential assessment of undiscovered deposits
2019 - 2022 多項目の環境トレーサーを駆使した地熱流体の滞留時間推定法の開発

Papers (63)：

Yusuke Ohta, Tada-nori Goto, Katsuaki Koike, Koki Kashiwaya, Weiren Lin, Osamu Tadai, Takafumi Kasaya, Toshiya Kanamatsu, Hideaki Machiyama. Correlation between induced polarization and sulfide content of rock samples obtained from seafloor hydrothermal mounds in the Okinawa Trough, Japan. Earth, Planets and Space. 2024. 76. 1
Yoshitaka NARA, Koki KASHIWAYA, Kazuki OKETANI, Hirokazu FUJII, Yue ZHAO, Masaji KATO, Kazuhei AOYAGI, Yusuke OZAKI, Hiroya MATSUI, Masanori KOHNO. Influence of clay-doped water on permeability in granite rock mass. Journal of the Society of Materials Science, Japan. 2024. 73. 3. 220-225
Yusuke Ohta, Tada-nori Goto, Koki Kashiwaya, Katsuaki Koike. Multi-capacitance electric relaxation model for complex electrical conductivity of sulphide ores. Exploration Geophysics. 2023. 1-11
Koki KASHIWAYA, Taishi HORI, Shun YAMAMOTO, Yohei TADA, Ryuta HAZAMA, Katsuaki KOIKE. 環境トレーサー分析と物質移行解析を用いた都市域における大気SF<sub>6</sub>濃度の時間変化の復元. Journal of Groundwater Hydrology. 2023. 65. 1. 35-52
Riostantieka Mayandari Shoedarto, Yohei Tada, Koki Kashiwaya, Katsuaki Koike, Irwan Iskandar. Advanced characterization of hydrothermal flows within recharge and discharge areas using rare earth elements, proved through a case study of two-phase reservoir geothermal field, in Southern Bandung, West Java, Indonesia. Geothermics. 2022. 105. 102507-102507

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MISC (56)：

柏谷公希, 堀太至, 山本駿, 多田洋平, 硲隆太, 小池克明. Reconstructing temporal change of atmospheric SF₆ concentration in an urban area by environmental tracer analyses and mass transport analyses. 地下水学会誌. 2023. 65. 1
後藤忠徳, 川口草太, 尾崎裕介, 大田優介, 久保大樹, 柏谷公希, 小池克明. 亀裂性岩盤の弾性波速度・比抵抗・透水性に関する岩石物理モデルの提案-Proposal of rock physics model for seismic velocity, resistivity, and permeability of fractured rock. 公益社団法人物理探査学会学術講演会講演論文集 = Proceedings of the SEGJ Conference. 2021. 145. 31-34
大田優介, 後藤忠徳, 小池克明, 柏谷公希, 笠谷貴史, 熊谷英憲, 町山栄章. Evaluation of the amount of subseafloor metal resources based on the integration of geophysical data and rock physics. 日本情報地質学会講演会講演要旨集(Web). 2021. 32nd
青木月丸, 柏谷公希, 渡辺勇輔, 小池克明. Estimation of fault function as a barrier on nuclide migration using hypothetical hydrogeological models. 資源・素材(Web). 2020. 2020
後藤忠徳, 川口草太, 大田優介, 久保大樹, 柏谷公希, 小池克明. Development of estimating permeability of rock mass based on physical data. 日本地球惑星科学連合大会予稿集(Web). 2020. 2020

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Lectures and oral presentations (132)：

Electrical conductivity and spectral IP characteristics in the rock samples obtained in seafloor hydrothermal area and interpretation of them
(日本地球惑星科学連合2019年大会 2019)
複数の環境トレーサー分析と物質移行解析を用いた京都盆地における地域的大気六フッ化硫黄濃度の時間変化の復元
(日本地球惑星科学連合2019年大会 2019)
地下坑道での弾性・比抵抗測定に基づいた岩盤透水性の推定
(日本地球惑星科学連合2019年大会 2019)
凝灰岩におけるサブクリティカルき裂進展
(日本材料学会第68期学術講演会 2019)
インドネシア・バンドン盆地周辺の地熱系における地熱流体の循環状態把握を目的とした地球化学的調査
(平成31年度資源・素材学会春季大会 2019)

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Education (1)：

2003 - 2006 Hokkaido University Graduate School of Engineering

Professional career (1)：

博士(工学) (北海道大学)

Work history (6)：

2019/10 - 現在 Kyoto University Graduate School of Engineering Associate Professor
2012/04 - 2019/10 Kyoto University Graduate School of Engineering Assistant Professor
2010/11 - 2012/03 Kumamoto University International Joint Education Program for Groundwater Environmental Leaders Project Assistant Professor
2007/12 - 2010/10 Central Research Institute of Electric Power Industry Civil Engineering Research Laboratory Visiting Researcher
2006/04 - 2007/11 Hokkaido University Graduate School of Engineering, 21st COE program "Sustainable Metabolic Systems of Water and Waste for Area-Based Society" Postdoctoral Research Fellow

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Committee career (13)：

2019/05 - 現在資源・素材学会関西支部常議員
2019/05 - 現在日本地下水学会代議員
2018/12 - 現在日本学術会議地球惑星科学委員会IUGS分科会IAH小委員会委員
2018/07 - 現在 Nature Research Scientific Reports, Editorial Board Member
2018/06 - 現在 International Association of Hydrogeologists Hydrogeology Journal, Associate Editor

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Awards (4)：

2013/12 - International Symposium on Earth Science and Technology 2013 Mitsui Matsushima Award for Best Paper Correlating Vegetation Reflectance Spectra of Satellite Imagery with Geochemical Data for Remote Sensing Mineral Exploration in Vegetated Areas
2013/05 - 日本地下水学会 2012年秋季講演会若手優秀講演賞
2011/12 - Best Paper Award, International Symposium on Earth Science and Technology 2011 Best Paper Award Geostatistical modeling of Ni and SiO2 contents for precise grade mapping and genesis identification of a laterite nickel deposit
2008/06 - 岩の力学連合会平成19年度フロンティア賞

Association Membership(s) (6)：

JAPANESE ASSOCIATION OF GROUNDWATER HYDROLOGY , JAPAN GEOSCIENCE UNION , International Association of Hydrogeologists , Geochemical Society , JAPAN SOCIETY OF ENGINEERING GEOLOGY , THE MINING AND MATERIALS PROCESSING INSTITUTE OF JAPAN

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