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Secular variation of carbon isotopic compostition of the Phanerozoic shallow marine carbonates.

Research Project

Project/Area Number 07640595
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionUNIVERSITY OF TOKYO

Principal Investigator

MATSUMOTO Ryo  Univ. Tokyo, Geol. Inst., Professor, 大学院・理学系研究科, 教授 (40011762)

Co-Investigator(Kenkyū-buntansha) KAKUWA Yoshitaka  Univ. of Tokyo, Gen. Arts, Assistant, 教養学部, 助手 (70124667)
TANABE Kazushige  Univ. of Tokyo, Geol. Inst., Professor, 大学院・理学系研究科, 教授 (20108640)
吉田 鎮男  東京大学, 大学院・理学系研究科, 助教授 (50011656)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1995: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsCarbon isotopic composition / carbonates / travertine / carboniferous / Devonian / Cambrian / Ordvician / 石炭系 / イラン / 先カンブリア・カンブリア境界 / ファメニア・フラニアン境界 / 絶滅事変 / 炭素同位体 / 酸度同位体 / ストロンチウム同位体 / 境界事変 / カンブリア系 / オルドビス系 / ドロマイト
Research Abstract

The purpose of this research is to ellucidate the secular variation of the oceanic cabon isotopic composition throughout the Phanerozoic era, based on the fact that the carbon isotopic composition of shallow marine carbonated reflect the oceanic carbon isotopes. Geologic survey and sampling were made in the first year, and isotopic analysis was made in the second year.
1, Limest one from the Carboniferous Onimaru and Nagaiwa Formations of South Kitakami were measured and sampled. Visean dolomite and calcite are relatively depleted in 13-C compared with the Namurian and Westpharian carbonates, however, most of the data are plotted within the range of 2 to 5 permil.
2, Travertine limestone of Shirahone Spa were analyzed to show the variatin witin inland lake. Carbon isotopic values are mostly enriched in 13-C,ranging from 0 to 6 permi.
3, Cambro-Ordvician carbonates of the Chosen Group of Korea were observed to show strong negative anomaly at the Middle to Upper Cambrian strata. The Ordvician section is characterzed by lighter signatures.
4, Devonian-Carboniferous sections of northeran Iran were measured and sampled. Carbon isotopic values range between 1 and 3 permil for the Devonia section, but the Visean section show a general decreasing trend as observed in Kitakami massif.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] 松本良: "炭酸塩の炭素同位体組成異常の要因と新しいバラダイム「ガスハイドレート仮説」" 地質学雑誌. 101. 902-924 (1955)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kimura,H.,Matsumoto,R.,Kakuwa,Y.,and Hamdi,B.: "Vendian-Cambrian carbon isotope record : evidence for overtuming of the ocean before the Cambrian Explosion." E.P.S.L.(1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 松本良: "白骨温泉のトラバーチン堆積物" 地質学雑誌. (発表予定). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 杵島正洋、松本良: "韓國、朝鮮層群(カンブリア〜オルドビス紀)の炭素同位体組成変動(発表予定)" 地質学雑誌. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Matsumoto, R.: "Causes of the d13C anomalies of carbonates and a new paradigm "Gas-Hydrate Hypothesis"" Jour. Geol. Soc. Japan. 101. 902-924 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kimura, H., Matsumoto, R., Kakuwa, Y., and Hamdi, B.: "Vendian-Cambrian carbon isotope record : evidence for overturning of the ocean before the Cambrian Explosion" E.P.S.L.(1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Matsumoto, R.: "Travertine sediments of Shirahone Hot Spa" Jour. Geol. Soc. Japan. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kishima, M., and Matsumoto, R.: "Carbon isotopic variations of Choseon Group (Cambro-Ordvician), Korea" Jour. Geol. Soc. Japan. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 松本 良: "炭酸塩のS^<13>C異常の要因と新しいパラダイム「ガスハイドレート仮説」" 地質学雑誌. 101(11). 902-924 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 松本 良 他: "白骨温泉のトラバーチン堆積物(発表予定)"

    • Related Report
      1996 Annual Research Report
  • [Publications] 松本 良、渡辺大輔: "北上山地の石炭系のS^<13>C変動(発表予定)"

    • Related Report
      1996 Annual Research Report
  • [Publications] Kimura,H.Matsumoto,R.: "The Cambrian Explosion:A result of ovcrturning of the Ocean." E.P.S.L.発表予定.

    • Related Report
      1996 Annual Research Report
  • [Publications] Matsumoto,R.: "Preliminary results of paleomagnetic study on the Cambrian to the Triassic rocks from the Alborz,northeast Iran." Jour.Fac.Sci,Univ.Tokyo. II. 234-249 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kimura,H.: ""Cambrian Explosion"was initiated by breakup of ocean stratification.21GC02:Geology" 24. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松本 良: "カナダ東部,ロッホ・マカンバ(前期石炭紀)の葉理石灰岩とツ-ファマウンド" 月刊地球. 17. 584-590 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松本 良: "イラン中部,下部カンブリア系デズ層の溶解崩壊(Solution Collapsc)" 地質雑. 101. ××I-××II (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松本 良: "炭酸塩のS^<13>C異常の要因と新しいパラダイム「ガスハイドレート仮説」" 地質雑. 101. 902-924 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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