2010 Fiscal Year Final Research Report
Studies on the therma I structure and the water distributi on in the Pacific plate subducting along the Japan Trench
| Project/Area Number |
19340125
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YAMANO Makoto The University of Tokyo, 地震研究所, 准教授 (60191368)
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| Co-Investigator(Kenkyū-buntansha) |
BABA Kiyoshi 東京大学, 地震研究所, 助教 (70371721)
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| Co-Investigator(Renkei-kenkyūsha) |
SENO Tetsuzo 東京大学, 地震研究所, 教授: (10216567)
KINOSHITA Masataka 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 (50225009)
GOTO Tadanori 京都大学, 大学院・工学研究科, 准教授 (90303685)
GOTO Shusaku 産業技術総合研究所, 地圏資源環境研究部門, 研究員 (10378557)
YAMAMOTO Junji 京都大学, 大学院・理学研究科, 助教 (60378536)
KAWAMURA Kiichiro 深田地質研究所, 主査研究員 (50321675)
HAMAMOTO Hideki 埼玉県環境科学国際センター, 主任 (40511978)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 日本海溝 / 沈み込み帯 / 地殻熱流量 / 地下温度構造 / 電気伝導度構造 / 太平洋プレート / 海洋地殻 / 地震発生帯 |
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| Research Abstract |
We revealed that heat flow on the seaward slope of the northern Japan Trench is anomalously high for the seafloor age. The high heat flow is observed only in the area where the Pacific plate has been deformed associated with subduction. It may be related to development of normal faults and hydrothermal circulation in the oceanic crust. We successfully conducted electromagnetic survey of shallow layers just below the seafloor in the high heat flow area on the Pacific plate using artificially controlled electric current. Combined with the results of natural-source electromagnetic survey of deeper part, we could obtain information on pore fluid rli ctrihntinn in tha cnhrlnntinu nnoanin nrnct.
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[Journal Article] プチスポット総合調査2007
Author(s)
馬場聖至,阿部なつ江,平野直人,富士原敏也,市來雅啓,町田嗣樹,高橋亜夕,山本順司,山野誠,濱元栄起,杉岡裕子,志藤あずさ
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Journal Title
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[Presentation] 北西太平洋の新種火山「プチスポット」の総合調査:メルト生成場とマグマ噴出場の分布解明2008
Author(s)
馬場聖至,阿部なつ江,平野直人,町田嗣樹,石井輝秋,山本順司,山野誠,濱元栄起,杉岡裕子,志藤あずさ,伊藤亜妃,高橋亜夕,富士原敏也,中西正男,磯部太祐,吉田貴洋
Organizer
BlueEarth '08 S40
Place of Presentation
神奈川,横浜市立大学
Year and Date
2008-03-14
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