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

Clarification of magmatic and tectonic evolution of Quaternary granite

Research Project

Project/Area Number 16K05617
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionCentral Research Institute of Electric Power Industry

Principal Investigator

Ito Hisatoshi  一般財団法人電力中央研究所, 地球工学研究所, 上席研究員 (50371406)

Co-Investigator(Kenkyū-buntansha) 堀江 憲路  国立極地研究所, 研究教育系, 助教 (00571093)
福山 繭子  秋田大学, 理工学研究科, 講師 (40630687)
外田 智千  国立極地研究所, 研究教育系, 准教授 (60370095)
山田 隆二  国立研究開発法人防災科学技術研究所, 社会防災システム研究部門, 主任研究員 (70343762)
福間 浩司  同志社大学, 理工学部, 准教授 (80315291)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsマグマ / 第四紀 / 花崗岩 / 年代測定 / 古地磁気測定 / 火成活動 / 古地磁気 / テクトニクス / 地質学 / 地球化学 / 火山防災 / 地熱
Outline of Final Research Achievements

The entire magmatic and tectonic evolution history of the Earth’s youngest exposed granite, Kurobegawa Granite, Japan Alps, was investigated using mainly U-Pb dating and paleomagnetism. As a result, it was revealed that the granite was formed not by a single intrusion but by multiple intrusion episodes spanning from 2.5 million years ago to 0.8 million years ago. Moreover, the granite was cooled below the magnetization temperature of ~600 degrees C during the Brunhes chron (since 0.77 million years ago) and the Japan Alps has experienced a rapid uplift and erosion during this time period without significant tilting as opposed to a commonly accepted theory.

Academic Significance and Societal Importance of the Research Achievements

一つの花崗岩体を対象に世界的にも類のない高密度の年代測定を行い,第四紀花崗岩(黒部川花崗岩)の生成年代に明瞭な地域差を見い出すとともに,関連する火山岩の噴出年代を明らかにした.また,古地磁気測定により,従来説とは異なり,北アルプスが大きな傾動を伴わずに激しい隆起・削剥を受け,現在の姿になったことを明らかにした.これらの成果は,我が国を代表する山岳地帯である北アルプスの成り立ちについての新たな知見であるとともに,花崗岩成因論や大規模噴火のメカニズムの解明への一助となり得る成果である.

Report

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

    (18 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (8 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] Curtin University/University of Western Australia(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Stanford University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] British Geological Survey(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Curtin University(Australia)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Stanford University(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Granada(Spain)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Curtin University(Australia)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Stanford University(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Rapid exhumation of Earth’s youngest exposed granites driven by subduction of an oceanic arc2019

    • Author(s)
      Spencer, C.J., Danisik, M., Ito, H., Hoiland, C., Tapster, S., Jeon, H., McDonald, B. and Evans, N.J.
    • Journal Title

      Geophysical Research Letters

      Volume: 46 Issue: 3 Pages: 1259-1267

    • DOI

      10.1029/2018gl080579

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magmatic tempo of Earth’s youngest exposed plutons as revealed by detrital zircon U-Pb geochronology2017

    • Author(s)
      Ito, H., Spencer, C.J., Danisik, M., Hoiland, C.W.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-6

    • DOI

      10.1038/s41598-017-12790-w

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 黒部川花崗岩と滝谷花崗閃緑岩の年代比較:どちらが世界一若いか?2017

    • Author(s)
      伊藤久敏
    • Journal Title

      フィッション・トラックニュースレター

      Volume: 30 Pages: 11-13

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] Dynamic Quaternary magmatism and volcanic activities in the Japan Alps as revealed by U-Pb zircon dating2017

    • Author(s)
      Ito, H.
    • Journal Title

      Journal of Nepal Geological Society

      Volume: 54 Pages: 227-227

    • Related Report
      2017 Research-status Report
  • [Presentation] ジルコンU-Pb年代と古地磁気・地化学分析から見た第四紀黒部川花崗岩の生成過程2018

    • Author(s)
      伊藤久敏・福間浩司・福山繭子・堀江憲路・竹原真美・山田隆二
    • Organizer
      日本地質学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 酸化されたマグネタイトに担われた黒部川花崗岩の自然残留磁化2018

    • Author(s)
      福間浩司,伊藤久敏,山田隆二,久保貴志,竹原真美
    • Organizer
      地球電磁気・地球惑星圏学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Dynamic Quaternary magmatism and volcanic activities in the Japan Alps as revealed by U-Pb zircon dating2017

    • Author(s)
      Ito, H.
    • Organizer
      11th Asian Regional Conference (ARC-11) of IAEG
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 黒部川花崗岩と滝谷花崗閃緑岩の年代比較:どちらが世界一若いか?2017

    • Author(s)
      伊藤久敏
    • Organizer
      日本フィッション・トラック研究会
    • Place of Presentation
      奈良県
    • Related Report
      2016 Research-status Report
  • [Presentation] Youngest exposed granite and its geochemistry: the 0.8 Ma Kurobegawa Granite2016

    • Author(s)
      Cambeses, A., Bea, F. and Ito, H.
    • Organizer
      VIII International SHRIMP Workshop
    • Place of Presentation
      Spain, Granada
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Funded Workshop] VIII International SHRIMP Workshop2016

    • Place of Presentation
      Spain, Granada
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2022-02-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi