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Discrimination between unaltered and altered volcanic products based on Cu and Fe isotopic measurements

Research Project

Project/Area Number 16K16372
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Natural disaster / Disaster prevention science
Research InstitutionUniversity of Tsukuba

Principal Investigator

IKEHATA KEI  筑波大学, 生命環境系, 助教 (70622017)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords火山噴出物 / マグマ水蒸気爆発 / 水蒸気爆発 / 水蒸気噴火 / 火山 / 岩石・鉱物・鉱床学 / 地球化学
Outline of Final Research Achievements

Chemical compositions of tiny primary copper minerals in volcanic products of phreatic and phreatomagmatic eruptions are similar to those in volcanic products of a magmatic eruption. In contrast, Cu isotopic compositions for the tiny primary copper minerals in the volcanic products of phreatic and phreatomagmatic eruptions are different from those (primary magmatic values) in the volcanic products of a magmatic eruption. This suggests that these primary copper minerals in the volcanic products of phreatic and phreatomagmatic eruptions were affected by hydrothermal alteration or weathering.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果から、火山噴出物に含まれる銅鉱物の銅同位体比は、噴出物の変質の程度を評価する指標になり得ると考えられる。火山噴火の様式の一つであるマグマ噴火の噴出物は、主に未変質な火山ガラスや造岩鉱物からなる。マグマ噴火の前駆現象として、変質噴出物を含む水蒸気爆発やマグマ水蒸気爆発が発生することがある。従って、火山噴出物の変質の程度を把握することができれば、火山噴火推移予測に役に立つことが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (29 results)

All 2019 2018 2017 2016 Other

All Journal Article (15 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (12 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Journal Article] Sulfur isotopic systematics during the October 2017 eruption of the Shinmoe-dake volcano, Japan2019

    • Author(s)
      K. Ikehata and T. Maruoka
    • Journal Title

      Applied Geochemistry

      Volume: 102 Pages: 102-107

    • DOI

      10.1016/j.apgeochem.2019.01.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-silica rhyolites of Niijima volcano in the northern Izu-Bonin arc, Japan: Petrological and geochemical constraints on magma generation and supply2019

    • Author(s)
      Y. Arakawa, D. Endo, J. Oshika, T. Shinmura, K. Ikehata
    • Journal Title

      Lithos

      Volume: 330-331 Pages: 223-237

    • DOI

      10.1016/j.lithos.2019.02.014

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Solid sulfur spherules near fumaroles of Hakone volcano, Japan2019

    • Author(s)
      K. Ikehata, M. Date, J. Ishibashi,G. Kikugawa, K. Mannen
    • Journal Title

      International Journal of Earth Sciences

      Volume: 108 Issue: 1 Pages: 347-356

    • DOI

      10.1007/s00531-018-1657-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative micro-PIXE analyses of trace elements in sphalerite from hydrothermally-altered sediments2018

    • Author(s)
      M. Kurosawa, K. Ikehata, K. Hattori, K. Sasa, S. Ishii
    • Journal Title

      Annual Report, Tandem Accelerator Center, University of Tsukuba

      Volume: 87 Pages: 39-40

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 新燃岳2017年10月11日-12日噴火の降下火山灰の水溶性付着成分と硫黄同位体組成2018

    • Author(s)
      池端 慶, 丸岡照幸
    • Journal Title

      火山噴火予知連絡会会報

      Volume: 129 Pages: 306-307

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] 硫黄島の地熱帯で2016年10月に発生した自然硫黄の溶融・燃焼と溶融硫黄の流出について2018

    • Author(s)
      池端 慶, 伊達みのり, 気象庁
    • Journal Title

      火山噴火予知連絡会会報

      Volume: 126 Pages: 122-127

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] 新燃岳2017 年10 月11 日-12 日噴火の降下火山灰の水溶性付着成分と硫黄同位体組成の特徴2018

    • Author(s)
      池端 慶, 丸岡照幸
    • Journal Title

      第140回火山噴火予知連絡会資料

      Volume: 1-2 Pages: 66-67

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] Micro-PIXE analyses of pyrite in sea-floor sediments2017

    • Author(s)
      M. Kurosawa, K. Hattori, K. Ikehata, K. Sasa, S. Ishii
    • Journal Title

      Annual Report, Tandem Accelerator Center, University of Tsukuba

      Volume: 86 Pages: 38-40

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Two types of gabbroic xenoliths from rhyolite dominated Niijima volcano, northern part of Izu-Bonin arc: petrological and geochemical constraints2017

    • Author(s)
      Yoji Arakawa, Daisuke Endo, Kei Ikehata, Junya Oshika, Taro Shinmura, Yasushi Mori
    • Journal Title

      Open Geosciences

      Volume: 9 Issue: 1 Pages: 1-12

    • DOI

      10.1515/geo-2017-0001

    • NAID

      120007129089

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 青ヶ島の噴気帯の現地調査結果(2016年4月19日~21日)2017

    • Author(s)
      池端 慶, 髙野友希
    • Journal Title

      火山噴火予知連絡会会報

      Volume: 124 Pages: 1-4

    • Related Report
      2016 Research-status Report
  • [Journal Article] 硫黄島の地熱変質帯で2016年10月に発生した自然硫黄の溶融・燃焼と溶融硫黄の流出について2017

    • Author(s)
      池端 慶, 伊達みのり, 気象庁
    • Journal Title

      第137回火山噴火予知連絡会資料

      Volume: 3-4 Pages: 160-165

    • Related Report
      2016 Research-status Report
  • [Journal Article] Eruptive history of Sundoro volcano, Central Java, Indonesia since 34 ka2016

    • Author(s)
      Oktory Prambada, Yoji Arakawa Kei Ikehata Ryuta Furukawa Akira Takada Haryo Edi Wibowo, Mitsuhiro Nakagawa, M. Nugraha Kartadinata
    • Journal Title

      Bulletin of Volcanology

      Volume: 78:81 Issue: 11 Pages: 1-19

    • DOI

      10.1007/s00445-016-1079-3

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sulfur isotopic characteristics of volcanic products from the September 2014 Mount Ontake eruption, Japan2016

    • Author(s)
      Kei Ikehata and Teruyuki Maruoka
    • Journal Title

      Earth, Planets and Space

      Volume: 68:116 Issue: 1 Pages: 1-7

    • DOI

      10.1186/s40623-016-0496-z

    • NAID

      120007129525

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [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: 429-448

    • NAID

      130006783523

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 青ヶ島の噴気帯の現地調査結果(平成28 年4 月19 日~21 日)2016

    • Author(s)
      池端 慶, 髙野友希
    • Journal Title

      第135回火山噴火予知連絡会資料

      Volume: 8 Pages: 83-87

    • Related Report
      2016 Research-status Report
  • [Presentation] 新燃岳2017年噴火初期噴出物の硫黄同位体比の特徴2018

    • Author(s)
      池端 慶, 丸岡 照幸
    • Organizer
      2018年度 日本地球化学会第65回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 伊豆弧、新島火山における流紋岩質マグマの生成・分化過程に関する岩石学的、地球化学的研究2018

    • Author(s)
      荒川洋二, 遠藤大介, 池端 慶, 大鹿淳也, 新村太郎
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 中部沖縄トラフ伊平屋北海丘熱水域海底下の熱水変質鉱物の地球化学的特徴2018

    • Author(s)
      池端 慶, 服部浩一, 三橋武史, 黒澤正紀, 小室光世, 笹 公和, 石井聡, 三好陽子, 島田和彦, 戸塚修平, 石橋純一郎
    • Organizer
      2018年度 資源地質学会第68回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] PUMOS論争期における黒鉱鉱石記載の再評価:海底熱水鉱床探査における意義2018

    • Author(s)
      小室光世, 池端 慶, 黒澤正紀
    • Organizer
      2018年度 資源地質学会第68回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Depiction of the sub-seafloor hydrothermal system in the Izena Hole, middle Okinawa Trough based on the whole rock chemical analyses and mineralogical observations of core samples2018

    • Author(s)
      Takaya, Y., T., Yamasaki, T., Nagase, T., Yonezu, K., Ikehata, K., Totsuka, S., Nozaki, T., Ishibashi, J.-I., Kumagai, H., Maeda, L. and CK16-05 Cruise Members
    • Organizer
      2018 AGU Fall Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 硫黄島の地熱帯で2016年10月に発生した自然硫黄の溶融と燃焼2017

    • Author(s)
      池端 慶, 伊達みのり
    • Organizer
      日本火山学会2017年度秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 中部沖縄トラフ伊平屋北海丘熱水域に産する熱水変質鉱物の地球化学的研究2017

    • Author(s)
      池端 慶, 服部浩一, 黒澤正紀, 小室光世, 笹 公和, 石井 聡, 三好陽子, 島田和彦, 戸塚修平, 石橋純一郎
    • Organizer
      日本火山学会2017年度秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 中部沖縄トラフ伊平屋北海丘熱水域に産する黄鉄鉱の微量元素組成の特徴2016

    • Author(s)
      池端 慶, 服部浩一, 黒澤正紀, 小室光世, 笹 公和, 石井 聡, 三好陽子, 島田和彦, 戸塚修平, 石橋純一郎
    • Organizer
      火山学会
    • Place of Presentation
      山梨県富士吉田市、富士吉田市民会館
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 阿蘇火山北西部に分布するAso-4火砕流堆積物の層序と岩石学2016

    • Author(s)
      荒川洋二, 関 琢磨, 新村太郎, 大鹿淳也, 森 康, 池端 慶
    • Organizer
      火山学会
    • Place of Presentation
      山梨県富士吉田市、富士吉田市民会館
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
  • [Presentation] インドネシア、ジャワ中部スンドロ火山の噴火活動史2016

    • Author(s)
      古川竜太, 高田亮, Oktory Prambada, Kartadinata Nugraha, Wiboyo Haryo, 中川光弘, 荒川洋二, 池端慶
    • Organizer
      火山学会
    • Place of Presentation
      山梨県富士吉田市、富士吉田市民会館
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 伊平屋小海嶺野甫サイトの掘削コアを含む熱水性鉱石試料の鉱物学的特徴2016

    • Author(s)
      戸塚修平, 石橋純一郎, 島田和彦, 野崎達生, 池端 慶
    • Organizer
      2016年度資源地質学会年会
    • Place of Presentation
      東京都、文京区、東京大学
    • Year and Date
      2016-06-23
    • Related Report
      2016 Research-status Report
  • [Presentation] Mineralogical and geochemical characteristics of the pyroclastic materials from the September 2014 Mount Ontake eruption, Japan2016

    • Author(s)
      Kei Ikehata, Teruyuki Maruoka
    • Organizer
      2016 Geological Society of America, Annual Meeting
    • Place of Presentation
      米国、デンバー、デンバーコンベンションセンター
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 研究室のHP

    • URL

      http://www.geol.tsukuba.ac.jp/~ikkei-hp/ikkei-index.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 研究室のHP

    • URL

      http://www.geol.tsukuba.ac.jp/~ikkei-hp/ikkei-index.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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