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Research on provenance study using quartz grain surface microtextures

Research Project

Project/Area Number 16K16351
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Geography
Research InstitutionNational Research Institute of Police Science

Principal Investigator

Itamiya Hiromi  科学警察研究所, 法科学第三部, 研究員 (40645488)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords石英粒子 / 表面形態 / 円磨度 / フラクタル次元 / 主成分分析 / 共焦点レーザー顕微鏡 / 表面粗さ / レーザー共焦点顕微鏡 / 石英 / 電子顕微鏡 / 後背地 / ImageJ / 後背地推定 / 微細形態
Outline of Final Research Achievements

The microtexture of a quartz surface reflects the sedimentary history of the grain, including its parent rock, transportation process, and depositional environment. In this study, we examined the relationship between quartz morphological features and sedimentary history to apply surface textural analysis to provenance study in Japan.
Fluvial sediments and coastal sands were collected in Japan, and quartz grains after chemical treatment were observed by scanning electron microscope. It is revealed that quartz surface analysis has the potential to show the morphological variation and provide useful information on the provenance study. Furthermore, 3D measurement of v-shaped percussion cracks, one of the surface microtextures, was developed. This analysis can contribute to reveal the subaqueous environment of fluvial and marine sediments.

Academic Significance and Societal Importance of the Research Achievements

日本の土における石英粒子の形態的特徴の多様性を確認し、後背地の推定に有用であることを示した。一方、先行する欧米諸国の研究とは必ずしも同様の傾向を示さないことも明らかとなり、日本の地質や地形的特徴を踏まえた考察を行う必要があると示唆された。土砂の後背地を推定し、「いつ、どこで、どのような地形変化が起こったのか」を明らかにする研究は、自然地理学における地域的多様性や地形変遷の解明、防災学における将来の自然災害の予測や土地の危険度の評価などに貢献できると考えられる。

Report

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

    (5 results)

All 2019 2016

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

  • [Journal Article] Analysis of the surface microtextures and morphologies of beach quartz grains in Japan and implications for provenance research.2019

    • Author(s)
      Itamiya, H. Sugita, R. and Sugai, T.
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 6:43 Issue: 1 Pages: 1-14

    • DOI

      10.1186/s40645-019-0287-9

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 石英の形状と表面構造を利用した後背地推定のための検討2019

    • Author(s)
      (5)板宮 裕実, 杉田 律子, 須貝 俊彦.
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 姫川河床堆積物における石英の形態変化2016

    • Author(s)
      板宮裕実、須貝俊彦
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ
    • Related Report
      2016 Research-status Report
  • [Presentation] Diversity of quartz shapes and microtextures of beach sands by scanning electron microscope(SEM) observation in Japan2016

    • Author(s)
      Itamiya H, Sugita R, Sugai T.
    • Organizer
      ANZFSS 23rd International Symposium on the Forensic Sciences
    • Place of Presentation
      SKYCITY Auckland Convention Centre
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 石英粒子の形態観察に基づく海岸砂の識別2016

    • Author(s)
      板宮裕実, 杉田律子, 須貝俊彦
    • Organizer
      日本法科学技術学会第22回学術集会
    • Place of Presentation
      中野サンプラザ
    • Related Report
      2016 Research-status Report

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

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