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Study on 1-byr time scale variation in the geomagnetic field using granitic rocks in Minnesota River valley

Research Project

Project/Area Number 18540417
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Solid earth and planetary physics
Research InstitutionTokyo Institute of Technology

Principal Investigator

TSUNAKAWA Hideo  Tokyo Institute of Technology, 大学院・理工学研究科, 教授 (40163852)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,940,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords古地磁気 / 花崗岩 / 先カンブリア紀 / ミネソタ / 磁鉄鉱 / 残留磁化 / 貫入岩テスト / 岩石磁気
Research Abstract

先カンブリア紀ミネソタ花崗岩類を系統的に採取し、詳細な岩石磁気学的研究を行った結果、安定した残留磁化は長石や石英に含まれる単磁区磁鉄鉱であった。これらは初生磁化を保持しうるので、古地磁気強度測定試料として有用性が示唆される。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (12 results)

All 2008 2007 2006

All Journal Article (8 results) (of which Peer Reviewed: 3 results) Presentation (4 results)

  • [Journal Article] 白亜紀スーパークロンと温室地球-関連性の示唆と古地磁気強度-2008

    • Author(s)
      吉原 新、渋谷秀敏、綱川秀夫、松島政貴
    • Journal Title

      月刊地球 30

      Pages: 378-386

    • Related Report
      2008 Final Research Report
  • [Journal Article] 地球ダイナミクスが生み出す地磁気2008

    • Author(s)
      綱川秀夫、望月伸竜、高橋太
    • Journal Title

      日本磁気学会会報 3

      Pages: 298-305

    • NAID

      10021155299

    • Related Report
      2008 Final Research Report
  • [Journal Article] 白亜紀スーパークロンと温室地球一関連性の示唆と古地磁気強度-2008

    • Author(s)
      吉原新, 渋谷秀敏, 綱川秀夫, 松島政貴
    • Journal Title

      月刊地球 30

      Pages: 378-386

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 地球ダイナミクスが生み出す地磁気2008

    • Author(s)
      綱川秀夫, 望月伸竜, 高橋太
    • Journal Title

      日本磁気学会会報 3

      Pages: 298-305

    • NAID

      10021155299

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Further K-Ar dating and paleomagnetic study of the Auckland geomagnetic excursions2007

    • Author(s)
      Mochizuki, N., et. al.
    • Journal Title

      Earth Planets Space, 59 59

      Pages: 755-761

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Paleomagnetism of the Datong monogenetic volcanoes in China: paleodirection and paleointensity during the middle to early Brunhes Chron2007

    • Author(s)
      Yamamoto, Y., et. al.
    • Journal Title

      Earth Planets Space 59

      Pages: 727-746

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New K-Ar ages of the Society Islands in French Polynesia and implication for the Society hotspot feature2007

    • Author(s)
      Uto, K., et. al.
    • Journal Title

      Earth Planets Space 59

      Pages: 879-885

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Paleomagnetism of the middle Cretaceous Iritono granite in the Abukuma region, northeast Japan2006

    • Author(s)
      Wakabayashi, K., Tsunakawa, H., Mochizuki, N., Yamamoto Y., Takigami, Y.
    • Journal Title

      Tectonophys 421

      Pages: 161-171

    • Related Report
      2006 Annual Research Report
  • [Presentation] Magnetic properties of the Precambrian granitic rocks in Minnesota2008

    • Author(s)
      N. Mochizuki, T. Kogiso, M. Sato, K.Seita, H. Tsunakawa
    • Organizer
      American Gephysical Union
    • Place of Presentation
      San Francisco
    • Year and Date
      2008-12-17
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 先カンブリア紀玄武岩質岩脈の初生磁化の検出2008

    • Author(s)
      清田和宏、望月伸竜、佐藤雅彦、小木曽哲、高橋太、綱川秀夫
    • Organizer
      地球電磁気・地球惑星圏学会秋季講演会
    • Place of Presentation
      仙台市戦災復興会館
    • Year and Date
      2008-10-20
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 先カンブリア時代ミネソタ花崗岩類の磁気特性2008

    • Author(s)
      望月伸竜、小木曽哲、佐藤雅彦、清田和宏、綱川秀夫
    • Organizer
      地球惑星科学連合大会
    • Place of Presentation
      千葉県幕張市幕張メッセ
    • Year and Date
      2008-05-27
    • Related Report
      2008 Final Research Report
  • [Presentation] 先カンブリア時代ミネソタ花岡岩類の磁気特性2008

    • Author(s)
      望月伸竜, 小木曽哲, 佐藤雅彦, 清田和宏, 綱川秀夫
    • Organizer
      地球惑星科学連合大会
    • Place of Presentation
      千葉県幕張市幕張メッセ
    • Year and Date
      2008-05-27
    • Related Report
      2008 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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