| Co-Investigator(Kenkyū-buntansha) |
KOGURE Toshihiro 東京大学, 大学院理学系研究科, 准教授 (50282728)
ISHIKAWA Tsuyoshi 独立行政法人海洋研究開発機構, 高知コア研究所, グループリーダー (30270979)
FUJIMOTO Koichiro 東京学芸大学, 教育学部, 准教授 (80181395)
HIRONO Tetsuro 大阪大学, 大学院理学研究科, 准教授 (70371713)
UJIIE Kohtaro 筑波大学, 大学院生命環境科学研究科, 准教授 (40359188)
YAMAMOTO Yuzuru 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, 研究員 (10435753)
田上 高広 京都大学, 大学院・理学研究科, 教授 (80202159)
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| Budget Amount *help |
¥161,720,000 (Direct Cost: ¥124,400,000、Indirect Cost: ¥37,320,000)
Fiscal Year 2013: ¥22,880,000 (Direct Cost: ¥17,600,000、Indirect Cost: ¥5,280,000)
Fiscal Year 2012: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
Fiscal Year 2011: ¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000)
Fiscal Year 2010: ¥41,600,000 (Direct Cost: ¥32,000,000、Indirect Cost: ¥9,600,000)
Fiscal Year 2009: ¥55,510,000 (Direct Cost: ¥42,700,000、Indirect Cost: ¥12,810,000)
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| Research Abstract |
We conducted the detailed analysis of the plate boundary faults in the Nankai Trough and the Japan Trench, where are located at the subduction zone producing devastating earthquakes and tsunamis.We moreover investigated structural, mineralogical, and chemical aspects of fault rocks, which were once deeply situated in the subduction zone but exhumed later on land. As the result, the aspects of fault rocks are quite variable and controlling factors for the sesimo-and tsunami-genesis are considered to be dependent upon the variability. Addition to the variability, it is clarified that existence of fluid in the plate boundary fault zone is quite important to determine the slip mechanisms of the plate boundary.
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