2012 Fiscal Year Final Research Report
Evolution of TAIGA considered from geochronology and molecular genetics
| Project Area | Project TAIGA: Trans-crustal Advection and In-situ biogeochemical processes of Global sub-seafloor Aquifer |
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| Project/Area Number |
20109004
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KUMAGAI Hidenori 独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, 技術研究副主幹 (10344285)
KOJIMA Shigeaki 東京大学, 新領域創成科学研究科, 教授 (20242175)
TOYODA Shin 岡山理科大学, 理学部, 教授 (40207650)
NAKAI Shunichi 東京大学, 地震研究所, 教授 (50188869)
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| Co-Investigator(Renkei-kenkyūsha) |
ITAYA Tetsumaru 岡山理科大学, 自然科学研究所, 教授 (60148682)
HASHIMOTO Tetsuo 筑波大学, 生命環境科学研究系, 教授 (50208451)
WATANABE Hiromi 海洋研究開発機構, 海洋・極限環境生物圏領域, 研究員 (50447380)
SUZUKI Yohei 東京大学, 理学系研究科, 准教授 (00359168)
FUJIKURA Katsunori 海洋研究開発機構, 海洋・極限環境生物圏領域, サブリーダー (10344293)
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| Research Collaborator |
SATO Keiko 独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, 技術研究副主任 (40359196)
TAKAMASA Asako 東京大学, 地震研究所, 特任研究員
OKUMURA Tasuku 岡山理科大学, オープンリサーチセンター, 研究員
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| Project Period (FY) |
2008 – 2012
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| Keywords | 海洋化学 / 熱水鉱床 / 年代決定法 / 分子系統学 / 熱水域固有生物種 |
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| Research Abstract |
We conducted an interdiscipinarily study among geochemistry and biology, aiming to develop methods to obtain reliable age information which are useful for understanding evolution of activities of “subseafloor fluid flow system (Taiga) “. As geochemical dating techniques, a cross check between the ESR dating and U/Th series disequilibrium dating were conducted, which showed a good agreement. As biological methods, analysis of genetic deviations among local populations and divergence of speciation in faunal groups were examined. Comparison of age information obtained by two different methods provided important constraint for discussion on history and evolution of hydrothermal activities.
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[Journal Article] Phengite K-Ar dating of metapelites from the Barrovian metamorphic belt at Loch Leven, Scotland2013
Author(s)
Aoki, K., B. Windley, K. Sato, Y. Sawaki, T. Kawai, T. Shibuya, H. Kumagai, K. Suzuki, S. Maruyama
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Journal Title
Peer Reviewed
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[Remarks] 2012年 1月, NHK,サイエンス・ゼロ 「深海"ゴールドラッシュ" 熱水が生んだ夢の金属資源(No.371)」にてコメント 2011年 7月,NHK, NHKスペシャル「深海大探査 生命誕生の謎に迫る」にてコメント
