2013 Fiscal Year Final Research Report
Generation and migration dynamics of geofluids
| Project Area | Geofluids: Nature and dynamics of fluids in subduction zones |
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| Project/Area Number |
21109006
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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 | Japan Agency for Marine-Earth Science and Technology (2012-2013)
Tokyo Institute of Technology (2009-2011) |
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Principal Investigator |
IWAMORI Hikaru 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, プログラムディレクター (80221795)
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| Co-Investigator(Kenkyū-buntansha) |
KAZAHAYA Kohei 独立行政法人産業技術総合研究所, 地質情報研究部門・深部流体グループ, グループ長 (50356763)
TANIMIZU Masaharu 独立行政法人海洋研究開発機構, 高知コア研究所, 技術研究主幹 (20373459)
KATO Yasuhiro 東京大学, 工(系)研究科(研究院), 教授 (40221882)
YOKOYAMA Tetsuya 東京工業大学, 理工学研究科, 准教授 (00467028)
TOKUNAGA Tomochika 東京大学, 新領域創成科学研究科, 教授 (70237072)
KURITA Kei 東京大学, 地震研究所, 教授 (00111451)
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| Co-Investigator(Renkei-kenkyūsha) |
KIMURA Jun-ichi 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, チームリーダー (30241730)
NAKAMURA Hitomi 東京工業大学, 理工学研究科, 特任助教 (60572659)
FUJINAGA Koichiro 東京大学, 工学研究科, 特任研究員 (90409673)
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| Project Period (FY) |
2009-07-23 – 2014-03-31
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| Keywords | 地殻流体 / 沈み込み帯 / スラブ流体 / 火山岩 / 有馬型塩水 / 鉱脈鉱床 / 同位体 / 数値シミュレーション |
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| Research Abstract |
The following points have been clarified concerning generation, distribution and migration of geofluids. (1) Geochemical mapping of the geofluids over the Japan arcs show that the Arima-type birne is dominant as a geofluid. (2) Isotopic compositions of heavy elements in the arc volcanic rocks put constraints on the distribution and amount of slab-derived fluid over the Japan arcs, being strongly related to the tectonic settings. (3) Pb-Nd-He isotopic compositions of the ore deposits have been successfully analyzed, showing its potential origin from the slab-derived fluid. In addition, trace element transportation in subduction zones, including U-Th secular disequilibiria, has been numerically modeled, demonstrating the migration paths and modes of slab fluids.
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[Journal Article] Origin of methane in serpentinite-hosted hydrothermal systems : The CH4-H2-H2O hydrogen isotope systematics of the Hakuba Happo hot spring2014
Author(s)
Suda K., Y.Ueno, M.Yoshizaki, H.Nakamura, K.Kurokawa, E., Nishiyama, K.Yoshino, Y.Hongoh, K.Kawachi, S.Omori, K.Yamada, N., Yoshida, S.Maruyama
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Journal Title
Earth Planet. Sci. Lett.
Volume: 386
Pages: 112-125
Peer Reviewed
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[Journal Article] 西南日本におけるスラブ起源深部流体の分布と特徴2014
Author(s)
風早康平,高橋正明,安原正也,西尾嘉朗,稲村明彦,森川徳敏,佐藤 努,高橋 浩,大沢信二,尾山洋一,大和田道子,塚本 斉,堀口桂香,戸崎裕貴,切田 司
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Journal Title
日本水文科学会誌
Volume: 44
Pages: 3-16
Peer Reviewed
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[Journal Article] Deep-sea mud in the Pacific Ocean as a potential resource for rare-earth elements2011
Author(s)
Kato, Y., Fujinaga, K., Nakamura, K., Takaya, Y., Kitamura, K., Ohta, J., Toda, R., Nakashima, T. and Iwamori, H.
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Journal Title
Nature Geoscience
Volume: 4
Pages: 535-539
Peer Reviewed
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[Journal Article] Passive degassing of magmatic volatiles from Iwate volcano, NE Japan, based on three-dimensional measurement of helium isotopes in groundwater2011
Author(s)
Ohwada, M., K.Kazahaya, J.Itoh, N.Morikawa, M.Takahashi, H.A.Takahashi, A.Inamura, M.Yasuhara, H.Tsukamoto
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Journal Title
J. Geophys. Res
Volume: 117
Pages: B2
DOI
Peer Reviewed
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[Journal Article] A multiple-isotope δ 37Cl, 14C, 3H approach to reveal the coastal hydrogeological system and its temporal changes in western Kyushu2011
Author(s)
Tokunaga, T., Shimada, J., Kimura, Y., Inoue, D., Mogi, K. and Asai, K.
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Journal Title
Japan. Hydrogeol. J.
Volume: 19
Pages: 249-258
Peer Reviewed
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