Integrated study of seafloor methane hydrate and gigantic methane seeps in the eastern margin of Japan Se a

2010 Fiscal Year Final Research Report

• Project/Area Number: 19204049
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geology
• Research Institution: The University of Tokyo
• Principal Investigator: MATSUMOTO RYO The University of Tokyo, 大学院・理学系研究科, 教授 (40011762)
• Co-Investigator(Kenkyū-buntansha): OGIHARA Shigenori 東京大学, 大学院・理学系研究科, 助教 (50214044) ; KAKUWA Yoshitaka 東京大学, 大学院・総合文化研究科, 助教 (70124667) ; SUNAMURA Michinari 東京大学, 大学院・理学系研究科, 助教 (90360867) ; NUMANAMI Hideki 東京家政学院大学, 家政学部, 准教授 (10266554) ; NAKAI Shunichi 東京大学, 地震研究所, 准教授 (50188869) ; KURITA Kayu 東京海洋大学, 海洋科学部, 教授 (80106757) ; TAKEUCHI Akira 富山大学, 理工学研究科, 教授 (20126494) ; YOSHIDA Kunio 東京大学, 総合研究博物館, 准教授 (10272527) ; KINOSHITA Masataka (独)海洋研究開発機構, 地球内部変動研究センター, グループリーダー (50225009)
• Co-Investigator(Renkei-kenkyūsha): MACHIYAMA Hideaki (独)海洋研究開発機構, 地球内部変動研究センター, グループサブリーダー (00344284) ; INAGAKI Fumio (独)海洋研究開発機構, 高知コア研究所, グループサブリーダー (50360748)
• Project Period (FY): 2007 – 2010
• Keywords: 環境地質

Research Abstract

Extremely high methane flux has been identified in the Joetsu basin, eastern margin of Japan Sea. Shallow, gas chimney type gas hydrates and strong methane seepages have been also observed in the basin. Deep-seated thermogenic methane migrated through conduits (gas chimney) to the seafloor and accumulated as massive gas hydrate deposits. Massive dissociation occurred at the LGM, corresponding to the sea level fall, and caused serious environmental change. Similar mechanism may explain mass extinction at the Ordovician-Silurian boundary.

Research Products

• [Journal Article] Toshihiko Sugai Structural and stratigraphic control on the Umitaka spur gas hydrates in the eastern margin of Japan Sea. (2011)
  • Author(s): Fernando Freire, Ryo Matsumoto
  • Journal Title: Spec. Issue, Jour. Marine and Petrol. Geol. 25 Pages: 154-161
  • Peer Reviewed
• [Journal Article] Evolution of Cambrian Ordovician trace fossils in pelagic deep-sea chert, (2010)
  • Author(s): Kakuwa, Y.
  • Journal Title: Australia. 57 Pages: 615-625
  • Peer Reviewed
• [Journal Article] Geochemical constraints for the formation and dissociation of gas hydrate in an area of high methane flux, eastern margin of the Japan Sea. (2009)
  • Author(s): Hiruta, A., Snyder, G.T., Tomaru, H., Matsumoto R.
  • Journal Title: Earth and Planetary Science Letters. 279 Pages: 326-339
  • Peer Reviewed
• [Journal Article] 上越沖海鷹海脚メタン湧出域の過去32,000年の岩相変化と有孔虫層序 (2009)
  • Author(s): 中川洋, 松本良
  • Journal Title: 地学雑誌 118 Pages: 969-985
  • Peer Reviewed
• [Journal Article] 総説メタンハイドレート-海底下に氷状巨大炭素リザバー発見のインパクト- (2009)
  • Author(s): 松本良
  • Journal Title: 地学雑誌 118 Pages: 7-42
  • Peer Reviewed
• [Journal Article] 日本海東縁、上越海盆の高メタンフラックス域におけるメタンハイドレートの成長と崩壊 (2009)
  • Author(s): 松本良, 角和善隆, 沼波秀樹, 荻原成騎
  • Journal Title: 地学雑誌 118 Pages: 43-71
  • Peer Reviewed
• [Journal Article] なつしまNT-06-19航海(直江津沖海鷹海脚および上越海丘)によって採取された堆積物柱状試料 (2009)
  • Author(s): 荻原成騎
  • Journal Title: 地学雑誌 118 Pages: 128-135
  • Peer Reviewed
• [Journal Article] Age variation of pore water iodine in the eastern Nankai Trough, Japan : Evidence for different methane sources in a large gas hydrate field. (2007)
  • Author(s): Tomaru, H., Lu, ZL., Fehn, U., Muramatsu, Y., Matsumoto R.
  • Journal Title: GEOLOGY 35 Pages: 1015-1018
  • Peer Reviewed
• [Journal Article] Methane-derived authigenic carbonates from the northern Gulf of Mexico - MD02 cruise. (2007)
  • Author(s): Chen, Y., Matsumoto R., Paull, CK (Paull, Charles K.); Ussler, W., Lorenson, T., Hart, P., Winters, W.
  • Journal Title: JOURNAL OF GEOCHEMICAL EXPLORATION 95 Pages: 1-15
  • Peer Reviewed
• [Journal Article] Halogen systematics in the Mallik 5L-38 gas hydrate production research well, Northwest Territories, Canada : Implications for the origin of gas hydrates under terrestrial permafrost conditions. (2007)
  • Author(s): Tomaru, H., Fehn, U., Lu, ZL., Matsumoto R.
  • Journal Title: APPLIED GEOCHEMISTRY 22 Pages: 656-675
  • Peer Reviewed
• [Presentation] Occurrence and Origin of gas hydrates of the eastern margin of Japan Sea as investigated by deep piston and gravity coring of R/V Marion Dufresne. (2010)
  • Author(s): R.Matsumoto
  • Organizer: AGU (American Geophysical Union) Fall Meeting
  • Place of Presentation: サンフランシスコ
  • Year and Date: 2010-12-16
• [Presentation] Pore water geochemistr of active methane venting sites, Umitakaspur and Joetsu knoll, eastern marginof Japan Sea. (2010)
  • Author(s): H.Tomaru
  • Organizer: AGU (American Geophysical Union) Fall Meeting
  • Place of Presentation: サンフランシスコ
  • Year and Date: 2010-12-16
• [Presentation] Low velocity anomaly of gas hydrate bearing sediments : implications for extensive distribution of gas bubbles (2010)
  • Author(s): R.Matsumoto
  • Organizer: 18-ISC (International Sedimentological Congress)
  • Place of Presentation: メンドーサ
  • Year and Date: 2010-09-30
• [Presentation] Evolution and Collapseof Marine Gas Hydrates : impact on (2009)
  • Author(s): Ryo Matsumoto
  • Organizer: Global Change Joint Symposium of Hiroshima University JAMSTEC
  • Place of Presentation: Hiroshima University
  • Year and Date: 2009-11-16
• [Presentation] Low velocity anomaly of gas hydrate bearing silt and clayey sediments, Joetsu basin, eastern margin of Japan Sea. (2009)
  • Author(s): Ryo Matsumoto
  • Organizer: 6^<th> Asia Oceanic Geoscience Society Meeting
  • Place of Presentation: シンガポール
  • Year and Date: 2009-08-13
• [Presentation] Dissociation of subsurface gas hydrates and collapseof gas-hydrate mounds during the LGM in the Eastern Margin of Japan Sea (2008)
  • Author(s): Ryo Matsumoto
  • Organizer: Fall Meeting of American Geophysical Union
  • Place of Presentation: サンフランシスコ
  • Year and Date: 2008-12-17
• [Presentation] Gas hydrate as the future energy resource -fundamental issues for the development of marinegas hydrate deposits- (2008)
  • Author(s): Ryo Matsumoto
  • Organizer: World Green Energy Forum 2008
  • Place of Presentation: (慶州)Gyeongju,韓国Korea
  • Year and Date: 2008-10-09
• [Presentation] Evolution of Gas Hydrate Deposits of the Marginal Seas of the Western Pacific (2008)
  • Author(s): Ryo Matsumoto
  • Organizer: 6^<th> ICAMG
  • Place of Presentation: Kochi University of Technology (Kochi)
  • Year and Date: 2008-08-30
• [Presentation] Types and Evolution of Gas Hydrate System along the Tectonically Active Zones of the Western Pacific : Nankai Trough vs. (2007)
  • Author(s): R.Matsumoto, H.Tomaru, L.Takeuchi, A.Hiruta, O.Ishizaki, C.Aoyama, H.Machiyama, T.Goto
  • Organizer: Eastern Margin of Japan Sea, AGU Fall Meeting
  • Place of Presentation: サンフランシスコ
  • Year and Date: 2007-12-10
• [Presentation] Acoustical Surveys Of Methane Plumes Using the Quantitative Echo Sounder In Japan Sea (2007)
  • Author(s): C.Aoyama, R.Matsumoto, M.Hiromatsu, G.Snyder, O.Ishizaki
  • Organizer: AGU Fall Meeting
  • Place of Presentation: サンフランシスコ
  • Year and Date: 2007-12-10
• [Presentation] Methane plumes and ocean floor gas hydrate off Joetsu, eastern margin of Japan Sea (2007)
  • Author(s): Matsumoto, R., et al.
  • Organizer: Korea-Japan Joint Workshop on IODP Projects
  • Place of Presentation: 韓国・済州島
  • Year and Date: 2007-11-21