Determination on the stable isotopic compositions of water vapor in volcanic plume using Cavity-ring down spectroscopy

• Project/Area Number: 16K13914
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geochemistry/Cosmochemistry
• Research Institution: Nagoya University
• Principal Investigator: Tsunogai Urumu 名古屋大学, 環境学研究科, 教授 (50313367)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 水蒸気 / 火山ガス / 安定同位体 / 噴煙 / キャビティリングダウン分光分析 / 遠隔測定 / マグマ噴火 / 水蒸気噴火 / 火山 / 安定同位体比 / 水蒸気爆発 / マグマ爆発

Outline of Final Research Achievements

The stable isotopic compositions of water vapor emitted during volcanic eruptions can be useful tracers to differentiate magmatic eruption from phreatic eruption. In this study, a simple and convenient analytical system was developed to determine both concentration and stable isotopic compositions of atmospheric water vapor in volcanic plume sampled in glass bottles using Cavity-ring down spectroscopy. By using the analytical system developed in this study, we can estimate the stable isotopic compositions of water vapor in a volcanic fumarole remotely from those in volcanic plume derived from the volcanic fumarole.

Research Products

• [Journal Article] 噴煙の化学組成を利用した火山診断 (2018)
  • Author(s): 角皆 潤
  • Journal Title: 理フィロソフィア Volume: 34 Pages: 8-11
  • Open Access
• [Journal Article] Formation of gas discharging from Taketomi submarine hot spring off Ishigaki Island in the southern Ryukyu Islands, Japan (2017)
  • Author(s): Tomohiro Toki, Daigo Iwata, Urumu Tsunogai, Daisuke D. Komatsu, Yuji Sano, Naoto Takahata, Hiroshi Hamasaki, Jun-ichiro Ishibashi
  • Journal Title: Journal of Volcanology and Geothermal Research Volume: 330 Pages: 24-35
  • DOI: 10.1016/j.jvolgeores.2016.11.018
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Remote determinations on fumarole outlet temperatures in an eruptive volcano. (2016)
  • Author(s): Tsunogai, U., L. Cheng, M. Ito, D. D. Komatsu, F. Nakagawa, and H. Shinoara
  • Journal Title: Geophysical Research Letters Volume: 43 Issue: 22 Pages: 11620-11627
  • DOI: 10.1002/2016gl070838
  • NAID: 120005905580
  • Peer Reviewed / Open Access
• [Journal Article] Helium and methane isotopic compositions and fluxes of shallow submarine hydrothermal plumes near the Tokara Islands, southern Japan (2016)
  • Author(s): Hsinyi, W., Y. Sano, N. Takahata, Y. Tomonaga, A. Ishida, K. Tanaka, T. Kagoshima, K. Shirai, J. Ishibashi, H. Yokose, U. Tsunogai, and T. Yang
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 34126-34126
  • DOI: 10.1038/srep34126
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Geochemical characteristics of hydrothermal fluids at Hatoma Knoll in the southern Okinawa Trough (2016)
  • Author(s): Tomohiro Toki, Michihiro Itoh, Daigo Iwata, Shogo Ohshima, Ryuichi Shinjo, Jun-ichiro Ishibashi, Urumu Tsunogai, Naoto Takahata, Yuji Sano, Toshiro Yamanaka, Akira Ijiri, Nobuaki Okabe, Toshitaka Gamo, Yasuyuki Muramatsu, Yuichiro Ueno, Shinsuke Kawagucci, Ken Takai
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 50 Issue: 6 Pages: 493-525
  • DOI: 10.2343/geochemj.2.0449
  • NAID: 130005435164
  • ISSN: 0016-7002, 1880-5973
  • Peer Reviewed
• [Journal Article] Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan (2016)
  • Author(s): Kagoshima, T., Sano, Y., Takahata, N., Ishida, A., Tomonaga, Y., Roulleau, E., Pinti, D.L., Fischer, T.P., Lan, T., Nishio Y., Tsunogai, U., Guo, Z
  • Journal Title: Journal of Volcanology and Geothermal Research Volume: 325 Pages: 179-188
  • DOI: 10.1016/j.jvolgeores.2016.06.013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Methanogens in H2-rich hydrothermal fluids resulting from phase separation in a sediment-starved, basalt-hosted hydrothermal system (2016)
  • Author(s): Toki, T., A. Hamamoto, M. Tawata, J. Miyazaki, K. Nakamura, M. Abe, K. Takai, Y. Sano, N. Takahata, U. Tsunogai, J. Ishibashi
  • Journal Title: Chemical Geology Volume: 447 Pages: 208-218
  • DOI: 10.1016/j.chemgeo.2016.11.004
  • Peer Reviewed
• [Presentation] 軽元素安定同位体比の高感度分析に基づく地球環境科学研究の新展開 (2017)
  • Author(s): 角皆 潤
  • Organizer: 日本地球化学会第64回年会
  • Invited
• [Presentation] 火山性流体中の水同位体組成に発見された負の三酸素同位体異常とその原因. (2017)
  • Author(s): 倉 和臣, 角皆 潤, 中川 書子, 大場 武, 篠原 宏志
  • Organizer: 日本火山学会2017年度秋季大会
• [Presentation] 噴煙中の気体成分の安定同位体比を指標に用いた火山噴気の遠隔温度測定 (2016)
  • Author(s): 高橋幸士, 角皆潤, 中川書子
  • Organizer: 日本質量分析学会同位体比部会
  • Place of Presentation: 秋田温泉さとみ
  • Year and Date: 2016-11-16
• [Presentation] 水素同位体交換平衡を利用した火山噴気温度の遠隔測定：航空機を用いた噴煙観測の将来性 (2016)
  • Author(s): 角皆潤, 程林, 小松大祐, 中川書子, 篠原宏志
  • Organizer: 日本質量分析学会同位体比部会
  • Place of Presentation: 秋田温泉さとみ
  • Year and Date: 2016-11-16
• [Presentation] CRDS法による水の三酸素同位体組成測定 (2016)
  • Author(s): 倉和臣, 角皆潤, 中川書子
  • Organizer: 日本質量分析学会同位体比部会
  • Place of Presentation: 秋田温泉さとみ
  • Year and Date: 2016-11-16
• [Presentation] 火山噴気中の水蒸気の遠隔同位体比測定法の開発 (2016)
  • Author(s): 高橋 幸士, 角皆 潤, 栗田 直幸, 中川 書子
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学杉本キャンパス
  • Year and Date: 2016-09-14
• [Presentation] Volcanic Gas Composition of Sakurajima Volcano, Japan (2016)
  • Author(s): Shinohara, H., Kazahaya, R., Tsunogai, U., Ohminato, T., and Kaneko, T.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Book] 海洋底科学の基礎 (2016)
  • Author(s): 日本地質学会「海洋底科学の基礎」編集委員会編、角皆 潤・蒲生俊敬他著者多数
  • Total Pages: 408
  • Publisher: 共立出版