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Understanding the process of spherical carbonate concretions formation and its application to civil engineering

Research Project

Project/Area Number 15H04224
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Earth system and resources engineering
Research InstitutionNagoya University

Principal Investigator

Yoshida Hidekzau  名古屋大学, 博物館, 教授 (30324403)

Co-Investigator(Kenkyū-buntansha) 南 雅代  名古屋大学, 宇宙地球環境研究所, 准教授 (90324392)
城野 信一  名古屋大学, 環境学研究科, 准教授 (20332702)
丸山 一平  名古屋大学, 環境学研究科, 教授 (40363030)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywordsコンクリーション / 炭酸カルシウム / 続成作用 / 球状コンクリーション / 再現実験 / シーリング / 炭酸塩コンクリーション / 応用研究 / 炭酸塩球状コンクリーション / 堆積岩 / 応用 / 亀裂シーリング
Outline of Final Research Achievements

Based on the study, the process of spherical concretions formation was revealed as follows; 1)spherical carbonate concretions are only found in marine sediments. 2)Sphere is formed by the diffusive process. 3)The reason why carbonate has been accumulated, is the process by the reaction with carbon and calcium in the sea water. 4)The fossils inside was well preserved, because of the reason by self sealing. 5)The reaction of carbon and calcium to form concretions is quite rapidly that before we had thought.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、球状コンクリーションの形成メカニズムを明らかにしただけでなく、そのプロセスを土木工学などの分野に応用可能であることを示したことである。とくに炭酸カルシウムによる閉塞効果などはあまりこれまで考えてこられなかったものであり、今後の応用性が期待される。

Report

(4 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (4 results)

All 2018 2017 2016 2015

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results,  Acknowledgement Compliant: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Generalized conditions of spherical carbonate concretion formation around decaying organic matter in early diagenesis2018

    • Author(s)
      Hidekazu Yoshida, Koshi Yamamoto, Masayo Minami, Nagayoshi Katsuta, Sirono Sin-ichi & Richard Metcalfe
    • Journal Title

      Scientific Reports

      Volume: 8:6308 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-018-24205-5

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long term behavior of hydrogeological structures associated with faulting: An example from the deep crystalline rock in the Mizunami URL, Central Japan2016

    • Author(s)
      Masayuki Ishibashi, Hidekazu Yoshida, Eiji Sasao, Takashi Yuguchi
    • Journal Title

      Engineering Geology

      Volume: 208 Pages: 114-127

    • DOI

      10.1016/j.enggeo.2016.04.026

    • NAID

      120005868240

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Early post-mortem formation of carbonate concretions around tusk-shells over week-month timescales2015

    • Author(s)
      Hidekazu Yoshida, Atsushi Ujihara, Masayo Minami, Yoshihiro Asahara, Nagayoshi Katsuta, Koshi Yamamoto, Sin-iti Sirono, Ippei Maruyama, Shoji Nishimot & Richard Metcalfe
    • Journal Title

      Scientific Reports

      Volume: srep14123 Issue: 1 Pages: 1-7

    • DOI

      10.1038/srep14123

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Current state of nuclear waste disposal in Japan2017

    • Author(s)
      H.Yoshida
    • Organizer
      International conference in Korean Geological Society
    • Place of Presentation
      ソウル大学
    • Year and Date
      2017-02-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2020-03-30  

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