Personnel Information

写真b

KUWAHARA YUSUKE

Organization
School of Biological and Environmental Sciences Assistant Professor
Laboratory Address
1, Gakuen-Uegahara, Sanda, Hyogo, Japan
Research Fields, Keywords
LA-ICP-MS, Osmium isotope ratio, Barium isotope ratio, Box-model simulation, Umber deposit, Bulk chemical analysis, Eocene Hyperthermals, Paleocene-Eocene Thermal Maximum, Glacial-interglacial cycles, Marine sediment core, Hothouse Earth, Carbonate sediments, Independent Component Analysis
Mail Address
y-kuwahara@kwansei.ac.jp
Syllabus information URL
https://syllabus.kwansei.ac.jp/uniasv2/UnSSOLoginControlFree?REQ_ACTION_DO=/AGA030PLS01Action.do?REQ_FUNCTION_JUMP_START_FLG=1&SLB_LINK_DISP_FLG=689&TCH_NO=256085&REQ_PRFR_FUNC_ID=AGA030
SDGs Related Goals
External link
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Graduating School 【 display / non-display 】

  • Graduating School:The University of Tokyo
    Faculty:工学部
    Course / Major:システム創成学科

    Kind of school:University
    Date of graduation:2018.03
    Completion status:Graduated
    Country location code:Japan

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Graduate School 【 display / non-display 】

  • Graduate school:The University of Tokyo
    Department:大学院工学系研究科
    Course:システム創成学専攻

    Course completed:Doctor's Course
    Date of completion:2023.03
    Completion status:Completed
    Country:Japan

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Studying abroad experiences 【 display / non-display 】

  • Name of institution: Rice University
    Name of job or career: 東京大学大学院工学系研究科「海外武者修行プログラム」
    Date: 2019.02

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Degree 【 display / non-display 】

  • Degree name:博士（工学）
    Classified degree field:Energy Engineering / Earth resource engineering, Energy sciences
    Conferring institution:The University of Tokyo
    Acquisition way:Coursework
    Date of acquisition:2023.03

  • Degree name:修士（工学）
    Classified degree field:Energy Engineering / Earth resource engineering, Energy sciences
    Conferring institution:The University of Tokyo
    Acquisition way:Coursework
    Date of acquisition:2020.03

  • Degree name:学士（工学）
    Classified degree field:Energy Engineering / Earth resource engineering, Energy sciences
    Conferring institution:The University of Tokyo
    Acquisition way:Coursework
    Date of acquisition:2018.03

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Career 【 display / non-display 】

  • Affiliation:Kwansei Gakuin University
    Department:School of Biological and Environmental Sciences Department of Applied Chemistry for Environment
    Title:Assistant Professor
    Date:2025.04 -

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  • Affiliation:Chiba Institute of Technology
    Department:Ocean Resources Research Center for Next Generation
    Title:Adjunct Researcher
    Date:2023.04 -

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  • Affiliation:Japan Agency for Marine-Earth Science and Technology
    Department:Volcanoes and Earth’s Interior Research Center (VERC)
    Title:External Resercher
    Date:2023.04 -

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  • Affiliation:The University of Tokyo
    Department:The Graduate School of Engineering Department of System Innovation
    Title:Project Assistant Professor
    Date:2023.04 - 2025.03

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Association Memberships 【 display / non-display 】

  • Academic society name:地球環境史学会
    Academic country located:Japan

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  • Academic society name:Geologial Society of Japan
    Academic country located:Japan

  • Academic society name:Japan Geoscience Union
    Academic country located:Japan

  • Academic society name:資源・素材学会
    Academic country located:Japan

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Research Areas 【 display / non-display 】

  • Research field:Natural Science / Atmospheric and hydrospheric sciences
    Research keywords：古海洋学

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  • Research field:Energy Engineering / Earth resource engineering, Energy sciences
    Research keywords：Submarine mineral resources

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  • Research field:Natural Science / Biogeosciences
    Research keywords：古環境変動

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  • Research field:Natural Science / Biogeosciences
    Research keywords：Geochemistry

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Qualification acquired 【 display / non-display 】

  • Qualification title:Museum Attendant

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Papers 【 display / non-display 】

  • Language: English
    Title: Multi‐Elemental Statistical Features of Early Paleogene Sediments From the Mid‐Latitude Eastern Indian Ocean
    Journal name: Paleoceanography and Paleoclimatology  vol.39  (10)  (p.e2023PA004829 - )
    Date of publication: 2024.09
    Author(s): Yusuke Kuwahara, Kazutaka Yasukawa, Erika Tanaka, Kentaro Nakamura, Minoru Ikehara, Yasuhiro Kato

    DOI: 10.1029/2023pa004829
    Type of publication: Research paper (scientific journal)

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  • Language: English
    Title: Iron deposition during recovery from Late Devonian oceanic anoxia: Implications of the geochemistry of the Kawame ferromanganese deposit, Nedamo Belt, Northeast Japan
    Journal name: Global and Planetary Change  vol.216  (p.103920 - )
    Date of publication: 2022.09
    Author(s): Yusuke Kuwahara, Koichiro Fujinaga, Tatsuo Nozaki, Junichiro Ohta, Moei Yano, Kazutaka Yasukawa, Kentaro Nakamura, Yasuhiro Kato

    DOI: https://doi.org/10.1016/j.gloplacha.2022.103920
    Type of publication: Research paper (scientific journal)
    Field of experts:Energy Engineering / Earth resource engineering, Energy sciences, Natural Science / Solid earth sciences, Natural Science / Atmospheric and hydrospheric sciences

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  • Language: English
    Title: Rapid coupling between solid earth and ice volume during the Quaternary
    Journal name: Scientific Reports  vol.11  (1)  (p.595 - )
    Date of publication: 2021.12
    Author(s): Yusuke Kuwahara , Kazutaka Yasukawa , Koichiro Fujinaga , Tatsuo Nozaki , Junichiro Ohta , Honami Sato , Jun-Ichi Kimura , Kentaro Nakamura , Yusuke Yokoyama , Yasuhiro Kato

    DOI: 10.1038/s41598-021-84448-7
    Type of publication: Research paper (scientific journal)
    Field of experts:Natural Science / Atmospheric and hydrospheric sciences, Natural Science / Solid earth sciences, Energy Engineering / Earth resource engineering, Energy sciences

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  • Language: English
    Title: Deep‐Sea Rare‐Earth Mineral Resources Formed in the Early Eocene Hothouse Ocean: Insights From Deep Learning‐Based Microfossil Observations
    Journal name: Paleoceanography and Paleoclimatology  vol.40  (4)
    Date of publication: 2025.04
    Author(s): K. Mimura, T. Kitazawa, K. Nakamura, K. Yasukawa, Y. Kuwahara, J. Ohta, Y. Kato

    DOI: 10.1029/2024pa004938
    Type of publication: Research paper (scientific journal)

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  • Language: Japanese
    Title: インド洋炭酸塩堆積物の多元素同位体分析に基づく古第三紀環境変動における地球システム応答の解明
    Journal name: 東京大学大学院工学系研究科　博士論文
    Date of publication: 2023.03
    Author(s): 桑原佑典

    Type of publication: Doctoral thesis

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MISC 【 display / non-display 】

  • Title:Stable isotope records and bulk chemical compositions of the early Paleogene intervals of ODP Hole 762C
    Journal name:Zenodo
    Date of publication:2024.09
    Author(s):Kuwahara, Y, Yasukawa, K, Tanaka, E, Nakamura, K, Ikehara, M, Kato, Y

    DOI:10.5281/zenodo.13731575
    Type of publication：Other

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  • Title:R scripts for independent component analysis on bulk chemical composition dataset of ODP Hole 762C sediments from mid-latitude Indian Ocean
    Journal name:Zenodo
    Date of publication:2024.06
    Author(s):Kuwahara, Y, Yasukawa, K, Tanaka, E, Nakamura, K, Ikehara, M, Kato, Y

    DOI:10.5281/zenodo.12571434
    Type of publication：Other

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  • Title:Deep-sea rare-earth mineral resources formed in the early Eocene Hothouse ocean: Insights from deep learning-based microfossil observations
    Publisher:Authorea, Inc.
    Journal name:ESS Open Archive
    Date of publication:2024.06
    Author(s):Kazuhide Mimura, Takahiro Kitazawa, Kentaro Nakamura, Kazutaka Yasukawa, Yusuke Kuwahara, Junichiro Ohta, Yasuhiro Kato

    DOI:10.22541/essoar.171804943.38756240/v1
    Type of publication：Internal/External technical report, pre-print, etc.

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  • Language：Japanese
    Title:宮古島におけるゴミムシ類3種の記録
    Journal name:さやばねニューシリーズ  (53)  (p.13 - 14)
    Date of publication:2024.03
    Author(s):桑原 佑典, 中村 涼

    Type of publication：Rapid communication, short report, research note, etc. (scientific journal)

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  • Title:Construction of a paleo-marine environmental indicator using Ba stable isotope ratio and issues for improving its reliability: Application to the ODP Hole 738C core sample as an example
    Journal name:日本地球化学会年会要旨集(Web)  vol.71st
    Date of publication:2024
    Author(s):宮崎隆, 桑原佑典, 桑原佑典, 桑原佑典, 安川和孝, 田中えりか, VAGLAROV B.S., 吉田健太

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Awards 【 display / non-display 】

  • Prize: Outstanding Presentation Award
    Date awarded:2023.12
    Awarding organization：Paleoscience Society
    Award-winner (group):Yusuke Kuwahara

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  • Prize: Dean Award of School of Engineering, the University of Tokyo
    Date awarded:2023.03
    Awarding organization：School of Engineering, The University of Tokyo
    Award-winner (group):Yusuke Kuwahara

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Presentations 【 display / non-display 】

  • Language:Japanese
    Conference name:2024年度佐渡ジオパーク学術フォーラム
    Presentation date：2025.02.24
    Title:佐渡の金銀鉱床から産出した鉱石の地球化学的・鉱物学的特徴
    Presentation type:Public lecture, seminar, tutorial, course, or other speech

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  • Language:Japanese
    Conference name:PALEO Paleosciences Society 10th annual meeting
    Holding date：2024.11
    Presentation date：2024.11.29
    Title:Development of LA-ICP-MS analysis for the elucidation of late Miocene paleoceanographic environment in the Japan Sea
    Presentation type:Poster presentation

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  • Language:Japanese
    Conference name:白亜紀-古第三紀 “Hothouse” の地球システム解明に関する研究集会
    Holding date：2024.10
    Presentation date：2024.10.27
    Title:始新世「温室地球」における生物生産性: Ba安定同位体比の応用
    Presentation type:Public lecture, seminar, tutorial, course, or other speech

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  • Language:Japanese
    Conference name:The 131st Annual Meeting of the Geological Society of Japan
    Holding date：2024.09
    Presentation date：2024.09.10
    Title:Paleo-productivity responses against Eocene Hyperthermals: Implications from barium stable isotope records
    Presentation type:Oral presentation (general)

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  • Language:Japanese
    Conference name:Paleosciences Society 9th annual meeting
    Holding date：2023.12
    Presentation date：2023.12.03
    Title:Paleo-productivity during the Eocene “hyperthermals”: Insights from barium stable isotope ratio
    Presentation type:Oral presentation (general)

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Teaching Experience (Off-campus) 【 display / non-display 】

  • Subject：地学講義（教職課程）
    Institution name：Kitasato University

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Social Contribution 【 display / non-display 】

  • Title:鉱物資源フロンティアミュージアム「ミネラフロント」
    Date：2023.05 - 2025.03

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  • Title:自然に学ぶみんなの学校
    Date：2023.04 - 2025.03

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Media Coverage 【 display / non-display 】

  • Title:東京大学が提供する「真にインクルーシブ」な自然体験学習ー自然に学ぶみんなの学校の事例ー
    Period：2024.12

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