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Biostratigraphy of conodonts and foraminifers across the boundary between permian and Triassic Systems in calcareous facies.

Research Project

Project/Area Number 06454001
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionUniversity of Tsukuba

Principal Investigator

ADACHI Shuko (1996)  Institute of Geoscience, University of Tsukuba, Assistant, 地球科学系, 助手 (80182997)

猪郷 久義 (1994-1995)  筑波大学, 地球科学系, 教授 (20015572)

Co-Investigator(Kenkyū-buntansha) IGO Hisayoshi  Institute of Geoscience, University of Tsukuba, Professor Emeritus, 地球科学系, 名誉教授 (20015572)
安達 修子  筑波大学, 地球科学系, 助手 (80182997)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1996: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1994: ¥3,200,000 (Direct Cost: ¥3,200,000)
KeywordsConodonts / Smaller Foraminifer / Permian / P / T boundary / Triassic
Research Abstract

Recent study of the boundary problem of the Permian and Triassic-Systems in Japan has been initiated in strata which were deposited in the off-shore pelagic to semipelagic environments. The study in calcareous facies, however, was remained the result of investigations until 1960's and insufficient compared with the research in foreign countries. The present study was planed and conducted to obtain more advanced knowledge concerning the boundary problems between permian and Triassic Systems.
We tried to establish the complete sections in calcareous facies including the P/T boundary in the following areas such as Kamura, Takachiho of Miyazaki Prefecture ; Taho Limestone, Shikoku ; Akasaka Limestone, Ogaki of Gifu Prefecture ; Gozen-yama Limestone, Okutama of Tokyo ; Kuzu Limestone, Aso county of Tochigi Prefecture ; Kamiiso Limestone, Hakodate of Hamatonbetsu of Hokkaido ; and Menashidomari near Hokkaido. In these sections, we establish hiostratigraphy of microfossils (mainly smaller foraminifers, fusulinacean foraminifers, conodonts, calcareous algae, and others) and analyzed vertical change of microfacies of carbonate rocks. As a result, we confirmed the intercalation of dolomitized facies and carbonaceous limestone in strata contain the P/T boundary.This stratigraphic and sedimentological evidence shows that the world-wide geochemical change of the sea water related with eustatic regression occurred at the boundary.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Igo, Hisayoshi et al.: "Some Jurassic radiolarians from Busuanga Island,Calamian Island Group,Palawan,Philippines." Prof.H.Igo Commemorative Vol.,ed.by H.Noda & K.Sashida. 165-191 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Adachi, Shuko et al.: "Late Triassic radiolarians from siliceous bedded limestone in west Timor." Prof.H.Igo Commemorative Vol.ed.by H.Noda & K.Sashida. 225-234 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo, Hisayoshi et al.: "Early Triassic deep-sea pelagic anoxic claystone in British Columbia." Prof.H.Igo Commemorative Vol.ed.by H.Noda & K.Sashida. 245-251 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo, Hisayoshi et al.: "Geology of the Nanmokuarea in Chichibu Terrane the northwestern part of the Kanto Mountains,ceutral Japan." Sci.Rep.Inst.Geosci.,Univ.Tsukuba sec.B. 15. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo, Hisayoshi et al.: "Some Jurassic radiolarians from Busuanga Island, Calamian Island Group, Palawan, Philippines." Prof.H.Igo Commemorative Vol.ed.by H.Noda and K.Sashida. 165-191 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Adachi, Shuko et al.: "Late Triassic radiolarians from siliceous bedded limestone in west Timor." Prof.H.Igo Commemorative Vol.ed.by H.Noda and K.Sashida. 225-234 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo, Hisayoshi et al.: "Early Triassic deep-sea pelagic anoxic claystone in British Columbia." Prof.H.Igo Commemorative Vol.ed.by H.Noda and K.Sashida. 245-251 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo, Hisayoshi et al.: "Geology of the Nanmoku area in the Chichibu Terrane, the northwestern part of the Kanto Mountains, central Japan." Sci.Rep.Inst.Geosci., Univ.Tsukuba, sec, B. 15. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Igo.Hisayoshi et al.: "Some Jurassic radiolarians from Busuanga Island,Calamian Island Group,Palawan,Philippines." Prof,H.Igo Commemorative Vol.,ed.by H.Noda & k.Sashida. 165-191 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Adachi,Shuko et al.: "Late Triassic radiolariaus from siliceousbedded limestone in west Timor." Prof.H.Igo Commemorative Vol.,ed.by H.Noda & k.Sashida. 225-234 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Igo.Hisayoshi et al.: "Early Triassic deep-sea pelagic anoxic claystone in British Columbia." Prof.H.Igo Commemorative Vol.,ed.by H.Noda & k.Sashida. 245-251 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Igo.Hisayoshi et al.: "Geology of the Nanmoku area in the Chichibu Terrane,the northwestern part of the Kanto Mountains,central Japan" Sci.Rep.Inst.Geosci.,Univ.Tsukuba.sec.B. 15(in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Igo. Hisayoshi et al.: "Middle and Late Permian radiolarians from SemNmggol Formation,northwest. PeninsleR Malaysia." Trans. Proc., Palaeont. Soc., Japan, New Series.177. 43-58 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 猪郷 久義・安達 修子: "A micropaleontological study near the Permian/Triassic boundary in Japan." (発表予定).

    • Related Report
      1994 Annual Research Report
  • [Publications] Sashida,K.: "The Permian/Triassic boundary in bedded chert sequence in Northern Thailand" Proc.International Symposium,Stratigraphic Correlation of Southeast Asia. 130- (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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