• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Towards a new view of the geomagnetic field intensity variation-paleointensity measurements from the Icelandic lavas

Research Project

Project/Area Number 19840034
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Solid earth and planetary physics
Research InstitutionKochi University

Principal Investigator

YAMAMOTO Yuhji  Kochi University, 教育研究部・自然科学系, 助教 (00452699)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,900,000 (Direct Cost: ¥2,540,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,340,000 (Direct Cost: ¥1,340,000)
Keywords古地磁気強度 / アイスランド / 低温消磁2 回加熱ショー法 / 岩石磁気
Research Abstract

最近の新たな絶対古地磁気強度測定法によると, 現在の地磁気ダイナモは大変活発な状態にあり, 平均的な状態からはかけ離れているらしい. この仮説を詳細に検討するためには, 北半球地域から系統的なデータを得ることが必要であり, 本研究ではこの新方法をアイスランド溶岩に適用するための予察研究に取り組んだ. 約100枚の溶岩からの予察的な測定結果によると, 過去約500 万年間の地磁気強度の平均は現在の約60%であり, 仮説を支持する.

Report

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

    (14 results)

All 2008 2007

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (10 results)

  • [Journal Article] Development of the microwave LTD-DHT Shaw method for absolute paleointensity determination2008

    • Author(s)
      Yamamoto, Y., and Shaw, J.
    • Journal Title

      Phys. Earth Planet. Inter. 170

      Pages: 15-23

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Paleomagnetic and rock magnetic studies of the Sakurajima 1914 and 1946 andesitic lavas from Japan : A comparison of the LTD-DHT Shaw and Thellier paleointensity methods2008

    • Author(s)
      Yamamoto, Y., and Hoshi, H.
    • Journal Title

      Phys. Earth Planet. Inter. 167

      Pages: 118-143

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Paleomagnetic and rock magnetic studies of the Sakurajima 1914 and 1946 andesitic lavas from Japan : A comparison of the LTD-DHT Shaw and Thellier paleointensity methods2008

    • Author(s)
      Yamamoto Y.
    • Journal Title

      Phys. Earth Planet. Inter. 167

      Pages: 118-143

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of the microwave LTD-DHT Shaw method for absolute paleointensity determination2008

    • Author(s)
      Yamamoto Y.
    • Journal Title

      Phys. Earth Planet. Inter. 170

      Pages: 15-23

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 低温消磁2 回加熱ショー法 : その適用の現状と将来2008

    • Author(s)
      山本裕二
    • Organizer
      第40回岩石磁気・古地磁気夏の学校(地球電磁気・地球惑星圏学会分科会)
    • Place of Presentation
      宮城県奥松島パイラ松島ユースホステル
    • Year and Date
      2008-09-17
    • Related Report
      2008 Final Research Report
  • [Presentation] 低温消磁2回加熱ショー法 : その適用の現状と将来2008

    • Author(s)
      山本裕二
    • Organizer
      第40回岩石磁気・古地磁気夏の学校(地球電磁気・地球惑星圏学会分科会)
    • Place of Presentation
      宮城県奥松島パイラ松島ユースホステル
    • Year and Date
      2008-09-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] 雲仙地域火山岩からの絶対古地磁気強度測定-過去50万年間の地球磁場強度変動2008

    • Author(s)
      山本裕二, 田中秀文, 渋谷秀敏, 星住英夫
    • Organizer
      日本地球惑星科学連合2008年大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Year and Date
      2008-05-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 雲仙地域火山岩からの絶対古地磁気強度測定-過去50万年間の地球磁場強度変動2008

    • Author(s)
      山本裕二
    • Organizer
      日本地球惑星科学連合2008年大会
    • Place of Presentation
      千葉県幕張メッセ
    • Year and Date
      2008-05-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] Study of the ancient geomagnetic field intensity variation2008

    • Author(s)
      Yamamoto, Y.
    • Organizer
      Kochi University-KIGAM international symposium
    • Place of Presentation
      高知コアセンター(高知県)
    • Year and Date
      2008-02-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Study of the ancient geomagnetic field intensity variation2008

    • Author(s)
      YAMAMOTO, Yuhji
    • Organizer
      Kochi University-KIGAM international symposium
    • Place of Presentation
      高知コアセンター,高知県
    • Year and Date
      2008-02-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] Introduction of the LTD-DHT Shaw method and its application to historical and older volcanic rocks (招待講演)2007

    • Author(s)
      Yamamoto, Y., Mochizuki, N., and Tsunakawa, H.
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      Moscone Convention Center, San Francisco
    • Year and Date
      2007-12-14
    • Related Report
      2008 Final Research Report
  • [Presentation] Introduction of the LTD-DHT Shaw method and its application to histo rical and older volcanic rocks(招待講演)2007

    • Author(s)
      YAMAMOTO, Yuhji
    • Organizer
      American Geophysical Union Fall Meeting
    • Place of Presentation
      Moscone Convention Center,San Francisco
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 古地球磁場変動の研究2007

    • Author(s)
      山本裕二
    • Organizer
      高知コアセンター合同セミナー
    • Place of Presentation
      高知コアセンター(高知県)
    • Year and Date
      2007-07-31
    • Related Report
      2008 Final Research Report
  • [Presentation] 古地球磁場変動の研究2007

    • Author(s)
      山本 裕二
    • Organizer
      高知コアセンター合同セミナー
    • Place of Presentation
      高知コアセンター,高知県
    • Year and Date
      2007-07-31
    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi