2009 Fiscal Year Final Research Report
Mapping of subduction component in Southwest Japan arc using boron content of volcanic rocks
| Project/Area Number |
19540509
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Kumamoto University |
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Principal Investigator |
HASENAKA Toshiaki Kumamoto University, 大学院・自然科学研究科, 教授 (50202429)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIBUYA Hidetoshi 熊本大学, 大学院・自然科学研究科, 教授 (30170921)
MIYOSHI Masaya 京都大学, 大学院・理学研究科附属地球熱学研究施設, 研究員 (50557353)
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| Research Collaborator |
SHIMONO Madoka 熊本大学, 大学院・自然科学研究科
SEKIGUCHI Yuko 熊本大学, 大学院・自然科学研究科
TAMURA Tomohisa 熊本大学, 大学院・自然科学研究科
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| Project Period (FY) |
2007 – 2009
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| Keywords | ホウ素 / 沈み込み帯 / 火山 / 即発ガンマ線分析 / 島弧玄武岩 / 海洋堆積物 / 物質循環 / マントル |
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| Research Abstract |
I estimated the influence of oceanic plate on the composition of the mantle materials where magmas for island arc volcanoes are generated. Boron contents in volcanic rocks from Kyushu island were determined by prompt gamma-ray analysis (PGA), and used as a representative subduction component. Contribution of subduction component is little for northern Kyushu, whereas it is relatively large for southern Kyushu, in which across-arc variation is observed. These results give an important restriction on the thermal structure of subducting plate and behavior of subduction component elements.
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[Journal Article] Boron systematics of Hisatsu and Kirishima basaltic rocks from southern Kyushu2010
Author(s)
Miyoshi, M., Shimono, M., Hasenaka, T., Sano, T., Mori, Y., Fukuoka, T
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Journal Title
Japan. Geochemical Journal 44(in press)
Peer Reviewed
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[Journal Article] Development of methodologies for the identification of volcanic and tectonic hazards to potential HLW repository sites in Japan-The Kyushu case study-2009
Author(s)
Chapman N, Apted M, Beavan J, Berryman K, Cloos M, Connor C, Connor L, Hasenaka T, Jaquet O, Kiyosugi K, Litchfield N, Mahony S, Miyoshi M, Smith W, Sparks S, Stirling M, Villamor P, Wallace L, Goto J, Miwa T, Tsuchi H, Kitayama K
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Journal Title
NUMO Technical Reports 40788
Pages: 186
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[Journal Article] Determination of boron contents in volcanic rocks by prompt-gamma ray analysis: an application to magma genesis in Kyushu island, SW-Japan2008
Author(s)
Miyoshi, M., Shimono, M., Hasenaka, T., Sano, T., Fukuoka, T
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Journal Title
Journal of Radioanalytical and Nuclear Chemistry 278
Pages: 343-347
Peer Reviewed
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[Journal Article] K-Ar ages of highmagnesian andesite lavas from northern Kyushu, Japan2008
Author(s)
Miyoshi, M., Nasu, T., Tajima, T., Kido, M., Mori, Y., Hasenaka, T., Shibuya, H., Nagao, K
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Journal Title
Journal of Mineralogical and Petrological Sciences 103
Pages: 183-191
Peer Reviewed
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