Precise analyses of micro inclusions within anorthite megacrysts in island arc volcanoes and estimation of parental magmas

• Project/Area Number: 25400508
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Petrology/Mineralogy/Economic geology
• Research Institution: University of Tsukuba
• Principal Investigator: ARAKAWA Yoji 筑波大学, 生命環境系, 教授 (00192469)
• Co-Investigator(Kenkyū-buntansha): MATSUI Tomoaki 鹿児島大学, 教育学部, 准教授 (40295233) ; 池端 慶 筑波大学, 生命環境系, 助教 (70622017)
• Co-Investigator(Renkei-kenkyūsha): IKEHATA Kei 筑波大学, 生命環境系, 助教 (70622017)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 灰長石巨晶 / 島弧火山 / 微小包有物 / 灰長石 / マグマ混合 / 自然銅・真鍮 / Fe硫化物 / 島孤火山

Outline of Final Research Achievements

Ca-rich plagioclase (anorthite) megacrysts occurs as disequilibrium crystals n island arc volcanic rocks. The purpose of this study is to clarify chemical and mineralogical characteristics of the anorthite megacryst and micro inclusions. Our study was focused on the anorthite megacryst in volcanic rocks in Take-shima (S. Kyushu), Hokiyadake volcano (central Japan), and Miyakejima volcano in Izu volcanic arc. In the Take-shima volcano, anorthite megacrysts often contain micro inclusions that were identified to be native iron (Fe). Yellow colored anorthite megacrysts in Hokiyadake volcano are thought to be a result of substitution of Fe for Alin crystal structure. In Miyakejima volcano, disordered distribution of Si/Al in anorthite crystal structure was identified. This finding is interpreted as metastable phase of the anorthite megacryst.
The growth of the anorthite megacrysts were interpreted to be due to rapid changing of phyisical condition nearly at melting temperature of anorthite.

Research Products

• [Journal Article] 阿蘇火山北西部に分布するAso-4火砕流堆積物、弁利サブユニットの層序と岩石学的特徴 (2016)
  • Author(s): 関 琢磨・荒川洋二・新村太郎・大鹿淳也・森 康・池端 慶
  • Journal Title: 火山 Volume: 61 Pages: 1-20
  • NAID: 130006783523
  • Peer Reviewed / Open Access
• [Journal Article] Hydrothermal native copper in ocea island basalt from the Mineoka Belt, Boso Peninsula, central japan (2016)
  • Author(s): Ikehata, K., Chida, K., Tsunogae, T. and Bornhorst, J.
  • Journal Title: Economic Geology Volume: 112 Pages: 28-37
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Petrochemical investigations of the Chichibu tonalite pluton, central Japan: implications for magmatic activities in a collision zone of Izu-Bonin arc against Honshu arc. (2015)
  • Author(s): Arakawa, Y., Suzuki, T. and Kouta, T.
  • Journal Title: Proceed., 2015 IAGR Annual Convention & 12th Intenational Symposium on Gondwana to Asia, IAGR Confernce Series Volume: 21 Pages: 5-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Yellow and colorless anorthite megacrysts from Hakone volcano: Structural controls on colouration (2015)
  • Author(s): Mastui, T., Buisman, I., Lampront, G.I. and Redfern, S.A.T.
  • Journal Title: Goldschimidt 2015 Abstract volume, Cambridge Publications Ltd. Volume: 25 Pages: 2051-2051
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mineralogical and geochemical characteristics of hydrothermal minerals collected from hydrothermal fields in the Southern Mariana Trough. (2015)
  • Author(s): Ikehata, K., Suzuki, R., Sjimada, K., Ishibashi, J. and Urabe, T.
  • Journal Title: Subseafloor Biosphere Linked to hydrothermal systems TAIGA Concept, Springer Volume: 2015 Pages: 275-287
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dating of hydrothermal mineralization in active hydrothermal fields in the southern Mariana Trough (2015)
  • Author(s): Ishibashi, J., Shimada, K., Sato, F., Uchida, A., Toyoda, S., Takamasa, A., Nakai, S., Hyodo, H.,Sato, K., Kumagai, H., Ikehata, K.
  • Journal Title: Subseafloor Biosphere Linked to hydrothermal Systems TAIGA Concept, Springer Volume: 2015 Pages: 289-300
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Mineralogical and geochemical characteristics of hydrothermal minerals collected from hydrothrmal (2015)
  • Author(s): Ikehata, K., Suzuki, R., Sjimada, K., Ishibashi, J., Urabe, T.
  • Journal Title: Subseafloor Biosphere Linked to hydrothermal Systems TAIGA Concept, Springer Volume: 2015 Pages: 275-287
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Anorthite megacryst from Take-shima, Kagoshima Prefecture, Japan: oscillatory zoning and micro inclusions. (2014)
  • Author(s): Matsui, T., Arakawa, Y., Kimata, M., Nishida, N., Hoshino, M., Echigo, T.
  • Journal Title: Proceed., of the 21st meeting of the Interantional Mineralogical Association Volume: 21 Pages: 380-380
  • Peer Reviewed
• [Journal Article] 高原崋山、藤山におけるマグマ混合機構：苦鉄質包有物による検討 (2014)
  • Author(s): 田島義之・荒川洋二・池端 慶・金井啓通
  • Journal Title: 火山 Volume: 59 Pages: 91-97
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Potential for biogeochemical cycling of sulfur, iron, and carbon within massive sulfide deposits below the seafloor (2014)
  • Author(s): Kato, S., Ikehata, K., Shibuya, T., Urabe, T., Ohkuma, M., Yamagashi, A.
  • Journal Title: Environmental Microbiology Volume: 19 Issue: 5 Pages: 19-19
  • DOI: 10.1111/1462-2920.12648
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Single crystal X-ray and electron microprobe study of Al/Si disordered anorthite with the low content of albite (2014)
  • Author(s): Echigo, T., Hoshino, M., Kimata, M., Shimizu, M., Matsui, T., Nishida, N.
  • Journal Title: Zeitschrift fur Kristallographie Volume: 229 Pages: 435-449
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Al/Si disordered anorthite (An92.0Ab3.4) occurring an anorthite megacryst from Miyake-jima, Japan (2014)
  • Author(s): Echigo, T., Hoshino, M., Kimata, M., Shimizu, M., Matsui, T., Nishida, N.
  • Journal Title: Proceed., of the International Mineralogical Association Volume: 21 Pages: 34-34
  • Peer Reviewed / Open Access
• [Journal Article] A rare basanite distribution in the northern part of the Izu-Bonin volcanic arc, Japan: Petrological and geochemical constraints (2014)
  • Author(s): Oshika, J., Arakawa, Y., Endo, D., Shinmura, T. and Mori, Y.
  • Journal Title: Journal Volcanology and Geothermar Research Volume: 270 Pages: 76-89
  • Peer Reviewed
• [Journal Article] 高原火山、富士山におけるマグマ混合機構：苦鉄質包有物による検討 (2014)
  • Author(s): 田島義之・荒川洋二・池端慶・金井啓通
  • Journal Title: 火山 Volume: 印刷中 Pages: 80-83
  • NAID: 110009829302
  • Peer Reviewed
• [Journal Article] Evaluation of UV-fs-LA-MC-ICP-MS for precise in situ Copper Isotopic Microanalysis of cubanite (2013)
  • Author(s): Ikehata,K. and Hirata, T.
  • Journal Title: Analytical Science Volume: 29 Pages: 1213-1217
  • NAID: 130004827330
  • Peer Reviewed
• [Journal Article] 硫黄島旧噴火口（ミリオンダラーホール）の現地調査結果（2012.3.7-9） (2013)
  • Author(s): 池端慶・滝沢茂・気象庁
  • Journal Title: 火山噴火予知連絡会会報 Volume: 112 Pages: 84-87
• [Presentation] Anorthite megacrysts within the basaltic andesite of Hokiyadake volcano, central Japan: geochemical and mineralogical constraints for their generation (2016)
  • Author(s): Arakawa, Y., Azuhata, M. and Matsui, T.
  • Organizer: Goldschimidt 2016 in Yokohama, Japan
  • Place of Presentation: Pacifico Yokohama, Yokohama, Japan
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Using copper isotopic composition to distinguish native copper formation mechnisms (2015)
  • Author(s): Ikehata, k., Chida, K., Bornhorst, J., Ishibashi, J. and Hirata, T.
  • Organizer: 2015 Geological Society of America, Annual meeting
  • Place of Presentation: Baltimore, USA
  • Year and Date: 2015-11-02
  • Int'l Joint Research
• [Presentation] Petrochemical investigations of the Chichibu tonalite pluton, central Japan: implication for magmatic activities in a collision zone of Izu-Bonin arc against Honshu arc (2015)
  • Author(s): Ａｒａｋａｗａ， Ｙ．， Ｓｕｚｕｋｉ， Ｔ． ａｎｄ Kouta, T.
  • Organizer: 2015 IAGR Annual Convention & 12th International Conference on Gondwana to asia
  • Place of Presentation: University of Tsukuba,Tsukuba, Japan
  • Year and Date: 2015-10-21
  • Int'l Joint Research
• [Presentation] Copper isotope systematics of chalcopyrites in ancient and modern seaflor hydrothermal deposits, measured by a femtosecond LA-MC-ICP-MS (2015)
  • Author(s): Ikehata, K., Ishibashi, J. and Hirata, T.
  • Organizer: Society of Economic Geologist 2015 Conference
  • Place of Presentation: Ｈｏｂａｒｔ， Ａｕｓｔｒａｌｉａ
  • Year and Date: 2015-09-25
  • Int'l Joint Research
• [Presentation] 箱根火山産黄色および無色灰長石巨晶：着色に関する構造制御 (2015)
  • Author(s): 松井智彰、Buisman, I., Lampront, G.I. and Redefer, S. A.T.
  • Organizer: 日本鉱物学会
  • Place of Presentation: 東京大学、東京都文京区
  • Year and Date: 2015-09-25
• [Presentation] 海底熱水性硫化鉱物の銅同位体比の特徴 (2015)
  • Author(s): 池端 慶・石橋純一郎・平田岳史
  • Organizer: 2015年度日本地球化学会年会
  • Place of Presentation: 横浜国立大学、神奈川県横浜市
  • Year and Date: 2015-09-15
• [Presentation] Yellow and colourless anorthite megacrysts from Haokone volcano: Structural controls on colouration (2015)
  • Author(s): Matsui, T., Buisman, I., Lampront, G.I. and Redefer, S. A. T.
  • Organizer: Goldschidt Conference 2015
  • Place of Presentation: Ｐｒａｇｕｅ，Czeck Republic
  • Year and Date: 2015-08-16
  • Int'l Joint Research
• [Presentation] 御嶽山2014年噴火で放出された熱水変質鉱物の鉱物学的・地球化学的特徴 (2015)
  • Author(s): 池端 慶・丸岡照幸
  • Organizer: ２０１５年度資源地質学会年会
  • Place of Presentation: 東京大学、東京都文京区
  • Year and Date: 2015-06-25
• [Presentation] 御岳火山２０１４年９月噴出物の鉱物学的・地球化学的特長 (2014)
  • Author(s): 池端 慶・丸岡照幸・千田康介
  • Organizer: ２０１４年同位体比部会
  • Place of Presentation: 茨城県つくば市（つくば温泉）
  • Year and Date: 2014-11-26 – 2014-11-27
• [Presentation] 御岳火山２０１４年９月噴出物の硫黄同位体比の特徴 (2014)
  • Author(s): 池端 慶・丸岡照幸・千田康介
  • Organizer: 日本火山学会2014年秋季大会
  • Place of Presentation: 福岡大学（福岡市）
  • Year and Date: 2014-11-02 – 2014-11-04
• [Presentation] Copper isotope ystematics of the various types of native copper mineralization (2014)
  • Author(s): Ikehata, K., Chida, K., Bornhorst, T.J., Ishibashi, J., Hirata, T.
  • Organizer: Geological Society of America, Annual Meeting
  • Place of Presentation: Vancouver, Canada
  • Year and Date: 2014-10-19 – 2014-10-22
• [Presentation] 伊豆弧、新島火山により産する２種類のハンレイ岩捕獲岩の成因：岩石学的・地球化学的考察 (2014)
  • Author(s): 遠藤大介・荒川洋二・池端 慶・大鹿淳也・新村太郎・森 康
  • Organizer: 日本鉱物科学会
  • Place of Presentation: 熊本大学(熊本市）
  • Year and Date: 2014-09-18 – 2014-09-20
• [Presentation] Anorthite megacryst from Take-shima, Kagoshima Prefecture, Japan: oscillatory zoning and micro inclusions (2014)
  • Author(s): Matsui, T., Arakawa, Y., Kimata, M., Nishida, N., Hoshino, M., Echigo, T.
  • Organizer: Internationa Mineralogal Association
  • Place of Presentation: Johannesburg, South Africa
  • Year and Date: 2014-09-01 – 2014-09-05
• [Presentation] Al/Si disordered anorthite (An92.0Ab3.4) occurring an anorthite megacryst from Miyake-jima, Japan (2014)
  • Author(s): Echigo, T., Hoshino, M., Kimata, M., Shimizu, M., Matsui, T., Nishida, N.
  • Organizer: Internationa Mineralogal Association
  • Place of Presentation: Johannesburg, South Africa
  • Year and Date: 2014-09-01 – 2014-09-05
• [Presentation] UVフェムト秒LA-MC-ICP-MSによるキューバナイト鉱の銅同位体比分析 (2014)
  • Author(s): 池端 慶・平田岳史
  • Organizer: 2014年資源地質学会年会
  • Place of Presentation: 東京大学（東京都文京区）
  • Year and Date: 2014-06-26 – 2014-06-28
• [Presentation] 小笠原・硫黄島の旧火口で2012-2013年に発生した爆発現象に伴う噴出物の岩石学的特長 (2014)
  • Author(s): 池端 慶・田村知也
  • Organizer: 日本地球惑星科学連合 連合大会2014年大会
  • Place of Presentation: パシフィコ横浜（横浜市）
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] フェムト秒LA-MC-ICP-MSによる銅同位体比局所分析法の開発と鉱石試料への応用 (2014)
  • Author(s): 池端 慶
  • Organizer: 日本地球惑星科学連合 連合大会2014年大会
  • Place of Presentation: パシフィコ横浜（横浜市）
  • Year and Date: 2014-04-28 – 2014-05-02
  • Invited
• [Presentation] Micro-inclusions in anorthite megacryst from Takeshima, Kogoshima Prefecture, Japan (2013)
  • Author(s): Matsui, T., Arakawa, Y., Kimata, M., Nishida, M., Hoshino, M. and Echigo, T.
  • Organizer: 日本鉱物科学会２０１３年年会
  • Place of Presentation: 筑波大学
• [Presentation] 高原火山、富士山溶岩ドームにおける苦鉄質包有物から推定されたマグマ混合機構 (2013)
  • Author(s): 田島義之・荒川洋二・池端慶・金井啓通
  • Organizer: 日本地球化学会第60回年会
  • Place of Presentation: 筑波大学
• [Presentation] 東伊豆単成火山群 岩ノ山ー伊雄山火山列の岩石学的研究 (2013)
  • Author(s): 金井啓通・荒川洋二・池端慶・田島義之
  • Organizer: 日本地球化学会第60回年会
  • Place of Presentation: 筑波大学
• [Presentation] Generation mechanism of the Nanzaki basanite in northern part of Izu Volcanic arc, Japan: petrological and geochemical constraints (2013)
  • Author(s): Yoji Arakawa, Oshika, J., Endo, D., Shinmura, T., Mori, Y.
  • Organizer: IAVCEI 2013
  • Place of Presentation: 鹿児島市鹿児島県民文化センター
• [Presentation] 銅同位体比局所分析方の開発と資源地質学への応用 (2013)
  • Author(s): 池端慶
  • Organizer: 2013年度資源地質学会
  • Place of Presentation: 東京大学
  • Invited
• [Presentation] Copper isotope variations of copper-rich minerals in seafloor hydrothermal deposits and igneous rocks, measured by a femtosecond LA-MC-ICP-MS (2013)
  • Author(s): Ikehata, K., Ishibashi, J., Suzuki, R., Hirata, T.
  • Organizer: 2013 Meetng of the Americas, Cancun, Mexico
  • Place of Presentation: Cancun, Mexico
• [Presentation] Characteristics of hot spring water and carbonate deposit from the Obama hot spring in the Unzen Volcanic Area Global Geopark (2013)
  • Author(s): Ikehata, K.
  • Organizer: IAVCEI 2013
  • Place of Presentation: 鹿児島市鹿児島県民文化センター
• [Remarks] 筑波大学 地球進化科学専攻 岩石分野ホームページ
  • URL: http://www.geol.tsukuba.ac.jp/~gansekihp/
• [Remarks] 筑波大学 荒川洋二 ホームページ
  • URL: http://www.geol.tsukuba.ac.jp/~gansekihp/arakawa.html