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Depositional ratio and cycles in the Rasthof cap carbonate of Namibia

Research Project

Project/Area Number 20606003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 地球システム変動
Research InstitutionNagoya University of Arts

Principal Investigator

TOJO Bunji  Nagoya University of Arts, 人間発達学部, 講師 (50422704)

Co-Investigator(Renkei-kenkyūsha) SHINICHI Kawakami  岐阜大学, 教育学部, 教授 (80183036)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsスノーボールアース / 地質学 / 全球凍結 / 原生代後期 / キャップカーボネート / 気候変動
Research Abstract

Rock specimens of Rasthof formation which covers Neoprpterozoic glacial deposit in Namibia were continuously sampled. These show the cyclic fluctuation in the amount of the carbonate minerals along vertical direction. Measurements reveal that the content of iridium in the specimens fluctuates with the carbonate cycle. It is concluded that the depositional ratio of the Rasthof cap carbonate periodically changes with kind of minerals if the amount of iridium in the specimens reflect in the depositional ratio.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (5 results)

All 2010 2009

All Journal Article (3 results) Book (2 results)

  • [Journal Article] 原生代後期のスターチアン氷河堆積物も赤道近くで堆積した2010

    • Author(s)
      東條文治、川上紳一
    • Journal Title

      科学 vol.80、No.7

      Pages: 680-681

    • Related Report
      2010 Final Research Report
  • [Journal Article] 原生代後期のスターチアン氷河堆積物も赤道近くで堆積した2010

    • Author(s)
      東條文治・川上紳一
    • Journal Title

      科学

      Volume: 80 Pages: 680-681

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 多細胞動物は原生代後期の氷河時代以前にすでに出現していたのか?2009

    • Author(s)
      東條文治、川上紳一
    • Journal Title

      科学 vol.79、No.6

      Pages: 596-599

    • Related Report
      2010 Final Research Report
  • [Book] 図解入門(最新地球史がよくわかる本「生命の星」誕生から未来まで[第2版])2009

    • Author(s)
      川上紳一、東條文治、秀和システム
    • Total Pages
      382
    • Related Report
      2010 Final Research Report
  • [Book] 最新地球史がよくわかる本[第2版]2009

    • Author(s)
      川上紳一・東條文治
    • Total Pages
      382
    • Publisher
      秀和システム
    • Related Report
      2009 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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