Toki Tomohiro 土岐知弘

… Alternative Names

TOKI Tomohiro 土岐知弘

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Researcher Number	50396925
Other IDs
Affiliation (Current)	2025: 琉球大学, 理学部, 准教授
Affiliation (based on the past Project Information) *help	2015 – 2025: 琉球大学, 理学部, 准教授 2008 – 2012: 琉球大学, 理学部, 助教
Review Section/Research Field	Principal Investigator Basic Section 63010:Environmental dynamic analysis-related / Geochemistry/Cosmochemistry Except Principal Investigator Medium-sized Section 17:Earth and planetary science and related fields / Basic Section 17040:Solid earth sciences-related / Broad Section B / Basic Section 63010:Environmental dynamic analysis-related / Science and Engineering
Keywords	Principal Investigator 希ガス同位体比 / 希ガス同位体分析 / メタン / 冷湧水 / 熱水 / 東シナ海 / 高温・高圧 / メタノール合成 / 海底熱水系 / 表面活性 … More / 水素還元状態 / 流体定常条件 / 金属触媒 / 還元反応 / 二酸化炭素 … More Except Principal Investigator 海底泥火山 / 間隙水 / 日本海溝 / 流体循環 / 熱輸送 / 断層 / アウターライズ / 海洋地殻 / 熱流量 / 比抵抗 / 化学合成生物 / 地殻流体 / 溶存態有機物 / 地下微生物 / 海底 / 海洋 / 科学掘削 / スロー地震 / 熱流量観測 / 海山沈み込み / 光ファイバー歪計 / 炭素 / 泥火山 / メタン / 微生物 / 溶存有機態炭素 / 海底下生命圏 / 深部流体 / メタンハイドレート / 溶存態有機炭素 / 希ガス / 物質循環 / 海洋プレート / プチスポット / 沈み込み帯 / 地殻熱流量 / 太平洋プレート / 沈み込み / 素課程 / 素過程 / 生物地球化学 / 酸化還元状態 / 海底下の大河 / 熱水循環 Less

Can seamount subduction weaken locking of megathrust earthquake? Test at 2 seamounts in Nankai Trough
- Principal Investigator
  
  木下正高
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section B
- Research Institution
  The University of Tokyo
Geosphere-hydrosphere-biosphere connected by submarine mud volcanism: Diffusion processes of deep life and carbon, and their effects on the ocean
- Principal Investigator
  
  井尻暁
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
  Kobe University
Fluid flow in the uppermost part of the incoming plate seaward of the trench: Regional variations and influence on processes around the plate interface
- Principal Investigator
  
  山野誠
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 17040:Solid earth sciences-related
- Research Institution
  The University of Tokyo
Hydrothermal systems ARE the source of methane in continental slope area of the East China Sea ?Principal Investigator
- Principal Investigator
  
  土岐知弘
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  University of the Ryukyus
Construction of a model for the diffusion and circulation of deep subsurface life and carbon to the ocean via submarine mud volcanism
- Principal Investigator
  
  Ijiri Akira
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Kobe University
Fluid flow and heat transport processes associated with deformation of the incoming plate near trenches and their influence on subduction zones
- Principal Investigator
  
  Yamano Makoto
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
  The University of Tokyo
Effective synthesis of methanol using high-CO2 and PT conditions at deep-sea hydrothermal systemsPrincipal Investigator
- Principal Investigator
  
  TOKI Tomohiro
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Geochemistry/Cosmochemistry
- Research Institution
  University of the Ryukyus
Interactions between microbial processes and physical-chemical environments associated with subseafloor advection of hydrothermal fluids
- Principal Investigator
  
  TAKAI Ken
- Project Period (FY)
  2008 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Japan Agency for Marine-Earth Science and Technology

All 2023 2022 2021 2020 2019 2018 2017 2013 2012 2011 2010

All Journal Article Presentation

[Journal Article] Assessing the activity of mud volcanism using boron isotope ratios in pore water from surface sediments of mud volcanoes off Tanegashima (SW Japan)2023
- Author(s)
  Mitsutome Yuki、Agena Ko、Toki Tomohiro、Song Ke-Han、Shinjo Ryuichi、Ijiri Akira
- Journal Title
  
  Frontiers in Marine Science
  
  Volume: 10
- DOI
  10.3389/fmars.2023.1229797
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K25964
[Journal Article] Distribution of dissolved methane in seawater from the East China Sea to the Ryukyu forearc2023
- Author(s)
  Toki Tomohiro、Chibana Hideki、Shimabukuro Teppei、Yamakawa Yo
- Journal Title
  
  Frontiers in Earth Science
  
  Volume: 11
- DOI
  10.3389/feart.2023.1174504
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K11391
[Journal Article] Estimation of the depth of origin of fluids using noble gases in the surface sediments of submarine mud volcanoes off Tanegashima Island2022
- Author(s)
  1.Mitsutome, Y., Toki, T., Kagoshima, T., Sano, Y., Tomonaga, Y., Ijiri, A.
- Journal Title
  
  Scientific Report
  
  Volume: 13 Issue: 1 Pages: 5051-5051
- DOI
  10.1038/s41598-023-31582-z
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H04315, KAKENHI-PROJECT-23K17482, KAKENHI-PROJECT-22K14115, KAKENHI-PROJECT-19KK0083, KAKENHI-PROJECT-22H00167, KAKENHI-PROJECT-23K25964
[Journal Article] Spring discharge mechanism along the southeast coast of Yonaguni Island in the southern Ryukyu forearc2022
- Author(s)
  Toki Tomohiro、Kataoka Hina、Takada Ryogo、Nakaya Shinji、Oshima Syogo、Ijiri Akira
- Journal Title
  
  Journal of Hydrology: Regional Studies
  
  Volume: 40 Pages: 101051-101051
- DOI
  10.1016/j.ejrh.2022.101051
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18H03733
[Journal Article] Vertical profiles of arsenic and arsenic species transformations in deep-sea sediment, Nankai Trough, offshore Japan2019
- Author(s)
  Harue Masuda、Haruka Yoshinishi、Shigeshi Fuchida、Tomohiro Toki、Emilie Even
- Journal Title
  
  Progress in Earth and Planetary Science
  
  Volume: 6 Issue: 1 Pages: 28-28
- DOI
  10.1186/s40645-019-0269-y
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18H03733, KAKENHI-PROJECT-17H01863
[Journal Article] Effect of CO2 on hydrogen absorption in Ti-Zr-Mn-Cr based AB2 type alloys2017
- Author(s)
  Nobuko Hanada, Hirotaka Asada, Tessui Nakagawa, Hiroki Higa, Masayoshi Ishida, Daichi Heshiki, Tomohiro Toki, Itoko Saita, Kohta Asano, Yumiko Nakamura, Akitoshi Fujisawa, and Shinichi Miura
- Journal Title
  
  Journal of Alloys and Compounds
  
  Volume: 705 Pages: 507-516
- DOI
  10.1016/j.jallcom.2017.02.067
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K13603
[Journal Article] Formation of gas discharging from Taketomi submarine hot spring off Ishigaki Island in the southern Ryukyu Islands, Japan2017
- 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
- Data Source
  KAKENHI-PROJECT-15K13603, KAKENHI-PROJECT-16K13914
[Journal Article] Shallow submarine hydrothermal activity with significant contribution of magmatic water producing talc chimneys in the Wakamiko Crater of Kagoshima Bay, southern Kyushu, Japan.2013
- Author(s)
  Yamanaka, T., Maeto, K., Akashi, H., Ishibashi, J., Miyoshi, Y., Okamura, K., Noguchi, T., Kuwahara, Y., Toki, T., Tsunogai, U., Ura, T., Nakatani, T., Maki, T., Kubokawa, K., and Chiba, H.
- Journal Title
  
  J. Volcan. Geotherm. Res.
  
  Volume: (in press) Pages: 74-84
- DOI
  10.1016/j.jvolgeores.2013.04.007
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005, KAKENHI-PROJECT-23340163, KAKENHI-PROJECT-23570070, KAKENHI-PROJECT-24310006, KAKENHI-PROJECT-24340135
[Journal Article] Biogeography of Persephonella in deep-sea hydrothermal vents of the Western Pacific.2013
- Author(s)
  Mino, S., Makita, H., Toki, T., Miyazaki, J., Kato, S., Watanabe, H., Imachi, H., Watsuji, T., Nunoura, T., Kojima, S., Sawabe, T., Takai, K., and Nakagawa, S.
- Journal Title
  
  Frontier in Extreme Microbiology
  
  Volume: 4 Pages: 107-107
- DOI
  10.3389/fmicb.2013.00107
- NAID
  120006389534
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005, KAKENHI-PROJECT-22760646, KAKENHI-PROJECT-25660146, KAKENHI-PROJECT-25840166
[Journal Article] Discovery of a new hydrothermal vent base on an underwater, high-resolution geophysical survey2013
- Author(s)
  Nakamura, K., T.Toki, N.Mochizuki, et al.
- Journal Title
  
  Deep-Sea Research I
  
  Volume: vol.174 Pages: 1-10
- DOI
  10.1016/j.dsr.2012.12.003
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109002, KAKENHI-PLANNED-20109005
[Journal Article] Geochemical origin of hydrothermal fluid methane in sediment-associated fields and its relevance with the geographical distribution of whole hydrothermal circulation.2012
- Author(s)
  Kawagucci, S., Ueno, Y., Takai, K., Toki, T., Ito, M., Inoue, K., Makabe, A., Yoshida, N., Muramatsu, Y., Takahata, N., Sano, Y., Narita, T., Teranishi, G., Obata, H., Nakagawa, S., Nunoura, T., and Gamo, T.
- Journal Title
  
  Chem. Geol.
  
  Volume: 339 Pages: 213-225
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005
[Journal Article] Iron-based microbial ecosystem on and below the seafloor: a case study of hydrothermal fields of the Southern Mariana Trough.2012
- Author(s)
  Kato, S., Nakamura, K., Toki, T., Ishibashi, J., Tsunogai, U., Hirota, A., Ohkuma, M., and Yamagishi, A.
- Journal Title
  
  Frontiers in Microbiological Chemistry
  
  Volume: 3 Pages: 89-89
- DOI
  10.3389/fmicb.2012.00089
- NAID
  120006389533
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005, KAKENHI-PLANNED-20109006, KAKENHI-PROJECT-22226015, KAKENHI-PUBLICLY-23109702
[Journal Article] 南西諸島南部海域における地球化学的・地質学的調査-長崎丸RN10航海報告-2011
- Author(s)
  土岐知弘
- Journal Title
  
  琉球大学理学部紀要
  
  Volume: 91 Pages: 9-19
- NAID
  40019206626
- Data Source
  KAKENHI-PLANNED-20109005
[Journal Article] Hydrothermal fluid geochemistry at the Iheya North field in the mid-Okinawa Trough: Implication for origin of methane in subseafloor fluid circulation systems2011
- Author(s)
  Kawagucci, S., Chiba, H., Ishibashi, J., Yamanaka, T., Toki, T., Muramatsu, Y., Ueno, Y., Makabe, A., Inoue, K., Yoshida, N., Nakagawa, S., Nunoura, N., Takai, K., Takahata, N., Sano, Y., Narita, T., Teranishi, G., Obata, H., and Gamo, T.
- Journal Title
  
  Geochem. J.
  
  Volume: 45 Pages: 109-124
- NAID
  10028198287
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005
[Journal Article] Isotopic variation of molecular hydrogen in 20o/ -375o/ C hydrothermal fluids as detected by a new analytical method.2010
- Author(s)
  Kawagucci, S., Toki, T., Ishibashi, J., Takai, K., Ito, M., Oomori, T., and Gamo, T.
- Journal Title
  
  J. Geophys. Res.
  
  Volume: 115 Issue: G3
- DOI
  10.1029/2009jg001203
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005
[Journal Article] Isotopic variation of molecular hydrogen in 20°-375℃ C hydrothermal fluids as detected by a new analytical method.2010
- Author(s)
  Kawagucci, S., Toki, T., Ishibashi, J., Takai, K., Ito, M., Oomori, T., Gamo, T.
- Journal Title
  
  J.Geophys.Res. 115
- NAID
  120006383300
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20109005
[Presentation] 種子島沖海底泥火山群の総合調査（KS-21-27次航海）速報2022
- Author(s)
  井尻暁、土岐知弘、村山雅史、星野辰彦、瀬戸口亮眞、満留由来、宮本洋好、田代昴士、安村幸真、小林祐大、山田貫太郎、吉崎結衣、大塚宏徳、加藤萌
- Organizer
  Japan Geoscience Union Meeting 2022
- Data Source
  KAKENHI-PROJECT-20H04315
[Presentation] Different depths of sedimentary and fluid origins in submarine mud volcanoes off Tanegashima Island, Japan2022
- Author(s)
  Akira Ijiri, Ryoma Setoguchi, Yohei Hamada, Yuki Mitsutome, Tomohiro Toki, Kyoko Hagino, Masafumi Murayama, Fumio Inagaki
- Organizer
  Goldschmidt 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H04315
[Presentation] 冷湧水・泥火山・熱水の地球化学2022
- Author(s)
  土岐知弘
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-18H03733
[Presentation] 海底下泥火山微生物群集の起源と直上海水との相互作用2022
- Author(s)
  星野辰彦、土岐知弘、野口拓郎、芦寿一郎、村山雅史、井尻暁
- Organizer
  Japan Geoscience Union Meeting 2022
- Data Source
  KAKENHI-PROJECT-20H04315
[Presentation] The roots of helium in surface sediments of submarine mud volcanoes off Tanegashima2021
- Author(s)
  Mitsutome, Y., T. Toki, T. Kagoshima, N. Takahata, Y. Sano, Y. Tomonaga, and A. Ijiri
- Organizer
  AGU Fall Meeting 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03733
[Presentation] The roots of helium in surface sediments of submarine mud volcanoes off Tanegashima2021
- Author(s)
  Mitsutome, Y., Toki, T., Kagoshima, T., Takahata, N., Tomonaga, Y., Ijiri, A.
- Organizer
  AGU Fall Meeting 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H04315
[Presentation] 種子島沖海底泥火山群からの深部起源流体の湧出フラックス2020
- Author(s)
  満留由来、土岐知弘、倉橋周吾、井尻暁、芦寿一郎
- Organizer
  日本地球惑星科学連合2020年大会
- Data Source
  KAKENHI-PROJECT-18H03733
[Presentation] 竹富海底温泉における連続モニタリング観測の予察的報告2019
- Author(s)
  大嶋　将吾、土岐　知弘、満留　由来、原　由宇
- Organizer
  第66回日本地球化学会年会
- Data Source
  KAKENHI-PROJECT-18H03733
[Presentation] 東シナ海大陸斜面域における海水中のメタンの分布2018
- Author(s)
  土岐　知弘、知花　英貴、島袋　鉄平、山川　陽
- Organizer
  日本地球惑星科学連合2018年大会
- Data Source
  KAKENHI-PROJECT-18H03733
[Presentation] AB2型水素吸蔵合金のCO2被毒耐性と炭化水素生成反応の相関とメカニズム2017
- Author(s)
  平敷大地，土岐知弘，花田信子，荒西研吾，石田政義，中川鉄水
- Organizer
  第12回水素若手研究会
- Data Source
  KAKENHI-PROJECT-15K13603
[Presentation] AB2型水素吸蔵合金のCO2被毒耐性と炭化水素生成反応の相関とメカニズム2017
- Author(s)
  平敷大地，土岐知弘，花田信子，荒西研吾，石田政義，中川鉄水
- Organizer
  日本金属学会2017年秋期大会
- Data Source
  KAKENHI-PROJECT-15K13603

1. Yamano Makoto (60191368)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. Ijiri Akira (70374212)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
3. 朴進午 (70359199)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 笠谷貴史 (90373456)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 川田佳史 (50402558)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. 星野辰彦 (30386619)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
7. 乙坂重嘉 (40370374)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
8. 村山雅史 (50261350)

# of Collaborated Projects: 2 results

# of Collaborated Products: 3 results
9. 野口拓郎 (90600643)

# of Collaborated Projects: 2 results

# of Collaborated Products: 1 results
10. 木下正高 (50225009)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. TAKAI Ken (80359166)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
12. TAKAHASHI Yoshio (10304396)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. YAMANAKA Toshiro (60343331)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
14. NAKAGAWA Satoshi (70435832)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
15. 河原林裕 (90195165)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 佐野有司 (50162524)

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# of Collaborated Products: 1 results
17. 平野直人 (00451831)

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18. 片山郁夫 (10448235)

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19. 仲田理映 (70816941)

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20. 荒木英一郎 (60359130)

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21. 橋本善孝 (40346698)

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22. 濱田洋平 (80736091)

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23. 澤井みち代 (20760995)

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24. 渡部裕美 (50447380)

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25. 大塚宏徳 (90866782)

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26. 後藤忠徳 (90303685)

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27. NAKAMURA Kentaro

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# of Collaborated Products: 1 results
28. MOCHIZUKI Nobutatsu

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Toki Tomohiro 土岐 知弘

TOKI Tomohiro 土岐 知弘

Research Projects

Research Products

Co-Researchers

Can seamount subduction weaken locking of megathrust earthquake? Test at 2 seamounts in Nankai Trough

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Geosphere-hydrosphere-biosphere connected by submarine mud volcanism: Diffusion processes of deep life and carbon, and their effects on the ocean

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Fluid flow in the uppermost part of the incoming plate seaward of the trench: Regional variations and influence on processes around the plate interface

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Hydrothermal systems ARE the source of methane in continental slope area of the East China Sea ?Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Construction of a model for the diffusion and circulation of deep subsurface life and carbon to the ocean via submarine mud volcanism

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Fluid flow and heat transport processes associated with deformation of the incoming plate near trenches and their influence on subduction zones

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Effective synthesis of methanol using high-CO2 and PT conditions at deep-sea hydrothermal systemsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Interactions between microbial processes and physical-chemical environments associated with subseafloor advection of hydrothermal fluids

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Assessing the activity of mud volcanism using boron isotope ratios in pore water from surface sediments of mud volcanoes off Tanegashima (SW Japan)2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Distribution of dissolved methane in seawater from the East China Sea to the Ryukyu forearc2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Estimation of the depth of origin of fluids using noble gases in the surface sediments of submarine mud volcanoes off Tanegashima Island2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Spring discharge mechanism along the southeast coast of Yonaguni Island in the southern Ryukyu forearc2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Vertical profiles of arsenic and arsenic species transformations in deep-sea sediment, Nankai Trough, offshore Japan2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Effect of CO2 on hydrogen absorption in Ti-Zr-Mn-Cr based AB2 type alloys2017

Author(s)

Toki Tomohiro 土岐知弘

TOKI Tomohiro 土岐知弘