Investigation of subseafloor environments based on methane stable isotopologues

• Project/Area Number: 26287128
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Geology
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: IJIRI Akira 国立研究開発法人海洋研究開発機構, 高知コア研究所, 主任研究員 (70374212)
• Co-Investigator(Kenkyū-buntansha): 坂井 三郎 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 技術研究員 (90359175)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000); Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2015: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2014: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
• Keywords: メタン / クランプトアイソトープ / 海底下地殻内環境 / 同位体分子 / 海底下地殻 / 同位体分子温度指標

Outline of Final Research Achievements

We extracted methane from drilled sediment samples from the submarine mud volcano at Kumano basin and the coal-bearing formation off Shimokita. Based on methane clumped isotope, which is a proxy of formation temperature of methane, we revealed the large contribution of microbial methanogenesis in deep subseafloor at both site.

Research Products

• [Int'l Joint Research] Massachusetts Institute of Technology(米国)
• [Journal Article] Defining boundaries for the distribution of microbial communities beneath the sediment-buried, hydrothermally active seafloor (2017)
  • Author(s): Yanagawa K, Ijiri A, Breuker A, Sakai S, Miyoshi Y, Kawagucci S, Noguchi T, Hirai M, Schippers S, Ishibashi J, Takaki Y, Sunamura M, Urabe T, Nunoura T, and Takai K
  • Journal Title: The ISME Journal Volume: 11 Issue: 2 Pages: 529-542
  • DOI: 10.1038/ismej.2016.119
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Limited reduction of ferrihydrite encrusted by goethite in freshwater sediment (2016)
  • Author(s): S Kikuchi, H Makita, U Konno, F Shiraishi, A Ijiri, K Takai, M Maeda, Y Takahashi
  • Journal Title: Geobiology Volume: 14 Issue: 4 Pages: 276-292
  • DOI: 10.1111/gbi.12181
  • 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] Mass occurrence of the enigmatic gastropod Elmira in the Late Cretaceous Sada Limestone seep deposit in southwestern Shikoku, Japan (2016)
  • Author(s): Nobuhara, T., Onda, D., Sato, T., Aosawa, H., Ishimura, T., Ijiri, A., Tsunogai, U., Kikuchi, N., Kondo, Y., Kiel, S.
  • Journal Title: PalZ Volume: 90 Issue: 4 Pages: 701-722
  • DOI: 10.1007/s12542-016-0326-4
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Exploring deep microbial life in coal-bearing sediments down to ~2.5km below the seafloor (2015)
  • Author(s): INAGAKI FUMIO, Kai-Uwe Hinrichs,KUBO YUSUKE,Marshall W. Bowles,Verena B. Heuer,Wei-Li Hong,HOSHINO TATSUHIKO,IJIRI AKIRA,IMACHI HIROYUKI,ITO MOTOO,KANEKO MASANORI,Mark A. Lever,Lin Yu-Shin,Barbara A. Methe,Morita Sumito,MORONO YUKI,et al.
  • Journal Title: SCIENCE/AAAS/ Volume: 349 Issue: 6246 Pages: 420-424
  • DOI: 10.1126/science.aaa6882
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 深海底におけるCO2排出および表層型塊状メタンハイドレート分解実験 (2015)
  • Author(s): 大友陽子、井尻暁、諸野祐樹、池川洋二郎、末永弘、ケースデビット、町山栄章、山本富士夫、後藤秀作、福場辰洋、永澤眞、松本雅光、稲垣史生
  • Journal Title: JAMSTEC Report of Research and Development Volume: 20 Pages: 61-71
  • Peer Reviewed
• [Journal Article] Origins of lithium in submarine mud volcano fluid in the Nankai accretionary wedge (2015)
  • Author(s): Nishio, Y., Ijiri, A., Toki, T., Morono, Y., Tanimizu, M., Nagaishi, K., and Inagaki, F.
  • Journal Title: Earth Plant. Sci. Lett. Volume: 414 Pages: 144-155
  • DOI: 10.1016/j.epsl.2015.01.018
  • Peer Reviewed
• [Presentation] 熊野海盆第五泥火山堆積物中のメタンハイドレートの起源 (2016)
  • Author(s): 井尻暁
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学(東京都世田谷区）
  • Year and Date: 2016-09-12
  • Invited
• [Presentation] Origin of biogenic methane in the Nankai submarine mud volcano based on methane stable isotopologues (2016)
  • Author(s): AKIRA IJIRI, DAVID T. WANG, SHUHEI ONO, AND FUMIO INAGAKI
  • Organizer: Golodschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜(神奈川県横浜市）
  • Year and Date: 2016-06-29
  • Int'l Joint Research
• [Presentation] Adsorbed Methane in a Miocene Methane-Seep Carbonate from Joetsu, Japan (2016)
  • Author(s): Yusuke Miyajima, Akira Ijiri, Masafumi Murayama
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜(神奈川県横浜市）
  • Year and Date: 2016-06-29
  • Int'l Joint Research
• [Presentation] NanoSIMS Reveals Activity in Deepest Samples Ever Collected by Marine Scientific Drilling (2016)
  • Author(s): ELIZABETH TREMBATH-REICHERT, YUKI MORONO, AKIRA IJIRI, KATHERINE S. DAWSON, KAI-UWE HINRICHS, FUMIO INAGAKI , VICTORIA J. ORPHAN
  • Organizer: Golodschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜(神奈川県横浜市）
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] 種子島沖海底泥火山における水とメタンの起源 (2016)
  • Author(s): 井尻 暁、土岐 知弘、安慶名 昴、星野 辰彦、町山 栄章、芦 寿一郎、稲垣 史生
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ(千葉県千葉市）
  • Year and Date: 2016-05-24
• [Presentation] Occurrence of microbial acetate-oxidation in ~2 km-deep coal-bearing sediments off the Shimokita Peninsula, Japan (IODP Expedition 337) (2015)
  • Author(s): IJIRI AKIRA, INAGAKI FUMIO, INAGAKI FUMIO
  • Organizer: American Geophysical Union Fall Meeting 2015
  • Place of Presentation: Monsocone Center サンフランシスコ, 米国
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] 熊野海盆海底泥火山における深部流体・ガスの供給と起源および生物地球化学プロセスについて (2015)
  • Author(s): 井尻 暁, 稲垣 史生
  • Organizer: 日本地球化学会第62回年会
  • Place of Presentation: 横浜国立大学、横浜市、神奈川県
  • Year and Date: 2015-09-18
• [Presentation] 海底泥火山深部生命圏の実態解明にむけて (2015)
  • Author(s): 稲垣史生、井尻暁
  • Organizer: 日本地質学会122年学術大会
  • Place of Presentation: 長野県長野市信州大学
  • Year and Date: 2015-09-13
  • Invited
• [Presentation] 種子島沖海底泥火山の新規流出泥流調査速報 (2015)
  • Author(s): 井尻 暁, 町山 栄章, 稲垣 史生, 芦 寿一郎
  • Organizer: 日本地質学会122年学術大会
  • Place of Presentation: 長野県長野市信州大学
  • Year and Date: 2015-09-13
• [Presentation] 下北八戸沖の褐炭層を含む海底下深部堆積物中のメタン生成および酢酸酸化活性 (2014)
  • Author(s): 井尻暁、稲垣史生
  • Organizer: 日本地球惑星科学連合2014年大会
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2014-04-30