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Non-destructive magnetic detection of volcanic ash in ice cores with SQUID gradiometer

Research Project

Project/Area Number 24654166
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Geology
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

ODA Hirokuni  独立行政法人産業技術総合研究所, 地質情報研究部門, 主任研究員 (90356725)

Co-Investigator(Kenkyū-buntansha) KAWAI Jun  金沢工業大学, 先端電子技術応用研究所, 教授 (10468978)
SUGANUMA Yusuke  国立極地研究所, 教育研究系, 助教 (70431898)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsSQUIDグラジオメータ / 火山灰 / 南極 / 磁性鉱物 / 非破壊検出 / 氷 / 雪 / 残留磁化 / 岩石磁気 / 阿蘇火山 / 氷床コア / 非破壊測定 / 人工磁化
Outline of Final Research Achievements

Indentification of volcanic ash layers in ice cores are important in providing time markers for comparison among multiple ice cores and in recognizing large volcanic eruptions that lead to global climate change.In this study, we pursued to develop non-destructive magnetic detection method of thin volcanic ash layers in ice cores. However, the difficulties in accessing to drilled ice cores and using low temperature room, our experiments were limited to modeled cores, Antarctic ice and snow samples with volcanic ashes. For modeled cores, volcanic ashes from Sakurajima and Aso volcanoes and Tiva Canyon tuff were measured. As a real ice sample, Antarctic ice collected from Nansen Ice Field was used while cooling with liquid nitrogen. As a real deposited volcanic ash, snow cores were collected 50km south of Aso volcano in Feb. 2015 during the time of active ash falls after Nov., 2014.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (7 results)

All 2014 2013 2012

All Journal Article (1 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] 東ドロンイングモードランド,セール・ロンダーネ山地調査隊報告2013(JARE-55)2014

    • Author(s)
      菅沼悠介,福田洋一 ,青山雄一,岡田雅樹
    • Journal Title

      南極資料

      Volume: 0 Pages: 0-0

    • NAID

      120005557512

    • Related Report
      2013 Research-status Report
  • [Presentation] 堆積残留磁化獲得メカニズムと地球磁場極性逆転年代の高精度決定2014

    • Author(s)
      菅沼悠介
    • Organizer
      日本地質学会第121年学術大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2014-09-15
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Non-destructive Magnetic Detection of Thin Ash Layers in Ice Cores2014

    • Author(s)
      小田啓邦・河合淳・菅沼悠介・船木實・今栄直也・三河内岳・宮城磯治
    • Organizer
      Asia Oceania Geosciences Society 11th Annual Meeting
    • Place of Presentation
      札幌
    • Year and Date
      2014-07-30
    • Related Report
      2014 Annual Research Report
  • [Presentation] SQUID Gradiometerの氷床コア中における火山灰検出への応用2013

    • Author(s)
      河合淳、小田啓邦、宮本政和、菅沼悠介、船木實
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学京田辺キャンパス(京都市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 氷床コアに含まれる微量火山灰の磁気的手法による非破壊検出2013

    • Author(s)
      小田 啓邦、宮城 磯治、河合淳、菅沼悠介、船木實、今栄直也
    • Organizer
      第4回極域科学シンポジウム
    • Place of Presentation
      国立極地研究所(立川市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 氷床コアに含まれる微量火山灰の磁気的手法による非破壊検出2013

    • Author(s)
      小田 啓邦、宮城 磯治、河合淳、菅沼悠介、船木實
    • Organizer
      日本地球惑星科学連合2013年大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 氷床コアに含まれる微量火山灰の磁気的手法による非破壊検出の可能性2012

    • Author(s)
      小田啓邦、宮城磯治、河合淳、菅沼悠介、船木實
    • Organizer
      第3回極域科学シンポジウム/第35回極域気水圏シンポジウム
    • Place of Presentation
      国立極地研究所(東京都)
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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