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Study on the marine environment around the P/T (Permian/Triassic) boundary in the deep sea deposits

Research Project

Project/Area Number 11440148
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionUniversity of Tsukuba

Principal Investigator

SASHIDA Katsuo  Univ. Tsukuba, Institute of Geoscience, Professor, 地球科学系, 助教授 (60134201)

Co-Investigator(Kenkyū-buntansha) KAMATA Yoshihito  Yamaguchi Univ. Institute of Geoscience, Research Assoc., 理学部, 助手 (30294622)
KOMURO Kosei  Univ. Tsukuba, Institute of Geoscience, Assi. Professor, 地球科学系, 講師 (40251037)
ADACHI Shuko  Univ. Tsukuba, Institute of Geoscience, Assi. Professor, 地球科学系, 講師 (80182997)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥15,400,000 (Direct Cost: ¥15,400,000)
Fiscal Year 2001: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1999: ¥12,700,000 (Direct Cost: ¥12,700,000)
KeywordsP / T boundary / Panthalassa / Ashio Mountains / Tethys / Anoxic / radiolarians / Thailand / Kano Mountains / T境界 / パンサラサ / テチス / チャート / 砕屑岩シーケンス
Research Abstract

We distinguished the Neoalbaillella optima zone as the Uppermost Permian radiolarian zone in the continuous sequence found in northern Thailand. Just below the P/T boundary, there was an acme which is characterized by prolific radiolarian fauna that exceeds more than 100 species. However, we can not find the occurrence of radiolarians in the Lower Triassic Griesbachian. Previously, four genera of Entactinaria and a genus of Spumeliaria have been reported in the Dienerian. In Spathian to Anisian, radiolarians explosively recovered, which means recovery and stability of marine environment in this period.
Based on the geochemical analysis by using δ13C and δ18O, there seem to be large volcanic eruption of basalt and emission of So2 and dust into the air. These made the global darkness and continental ice sheets which induced great regression and productivity collapse, and finally the mass extinction. Geochemical evidence for meteorite impact at the P/T boundary is extremely tenuous.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 松本, 指田, 堀: "新潟県北魚沼郡小出東方地域の足尾帯から産する中・古生代放散虫化石"第7回放散虫研究集会論文集. 99-112 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 高柳, 堀, 指田: "栃木県足利北部地域の足尾帯堆積岩のコンプレックスの構造層方と放散虫化石"第7回放散虫研究集会論文集. 113-127 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 指田勝男: "東南アジアのタイ国およびインドネシア国チモール島における中・古生代放散虫化石研究の現状"古生物学トピックス. 2. 25-30 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sashida, Salyopongse: "Permian radiolarian fauna from Thailand and their palcogeographic significance"Journal of Asian Earth Sciences. (in press). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sashida, Salyapongse, Charisizi: "Lover Carbonifeous radiolarian fauna from the Kobang area, southernmost past of peninsular Thailand"Micropaleontology. (in press). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsumoto, Sashida, Hori: "Paleozoic and Mesozoic radlolarians from the area east of Koide Town, Kitauonuma County, Nilgata Prefecture, central Japan"News of Osaka Micropaleontologists (NOM), Spec.. Vol. No. 12. 99-112 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayanagi, Hori, Sashida: "Tectonostratigraphy of the sedimentary complex of the Ashio Terrane in the northern part of the Ashikaga area, Tochigi Prefecture, and the occurrence of radiolarians"News of Osaka Micropaleontologists (MOM), Spec.. Vol. No. 12. 113-127 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sashida, Salypongse: "Permian radiolarian fauna from Thailand and their paleogeographic significance"Journal of Asian Earth Sciences. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sashida, Salyapongse, Punya: "Lower Carboniferous radiolarian fauna from the Kabang area, southernmost part of peninsular Thailand"Micropaleontology. (jn press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 松本, 指田, 堀: "新潟県北魚沼群小出東方地域の足尾帯から産する中・古生代放散虫化石"第7回放散虫研究集会論文集. 99-112 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 高柳, 堀, 指田: "栃木県足利北部地域の足尾帯堆積岩コンプレックスの構造層序と放散虫化石"第7回放散虫研究集会論文集. 113-127 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 指田勝男: "東南アジアのタイ国およびインドネシア国チモール島における中・古生代放散虫化石研究の現状"古生物学トピックス. 2. 25-30 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sashida, Salyapongse: "Permian radiolarian fauna from Thailand and their paleogeographic significance"Journal of Asian Earth Sciences. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sashida, Salyapongse, Charusiri: "Lower Carboniferous radiolarian fauna from the Kabang area, southernmost part of peninsular Thailand"Micropaleontology. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 高柳厚志,指田勝男 ほか: "栃木県足利当方地域の足尾帯の構造層序と放散虫化石"放散虫研究集会論文集特別号. 10(受理). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 松本洋介,指田勝男 ほか: "新潟県北魚沼群小出当方地域の足尾帯相当層の中・古生代放散虫"放散虫研究集会論文集特別号. 10(受理). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kamata,Sashida, et al.: "Triassic radiolarian faunas from the Mae Sariang area, northern Thailand and their paleogeographic significance"Journal of Asian Earth Sceince. (Accepted). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sashida and Salyaponges: "Permian radiolarian faunas from Thailand and their paleogeographic significance"Journal of Asian Earth Science. (Accepted). (2002)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sashida et al.: "Carboniferous radiolarian fauna from Kabang, southernmost part of peninsular Thailand."Micropaleontolopy. (Accepted). (2002)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sashidaka K.et al.: "Late Permian to Middle Triassic radiolarian faunas from northern Thailand"Jounal of Paleontology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Sashida K.et al.: "Latest Permian radiolarian fauna from Klaeng,eastern Thailand"Micropaleontology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Sashida K.et al.: "Carboniferous and Triassic radiolarian faunas from the Saba Yoi area,southernmost part of Peninsular Thailand and their paleogeographic signifficance"Sci.Rep.Inst.Geosci.,Univ.Tsukuba. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kurihara T.,Sashida,K.: "Taxonomy of Late Silurian to Middle Devonian radiolarians from the Kuzuryu Lake district of the Hida Gaien Belt,Fukui Prefecture,central Japan"Micropaleontology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kurihara T.,Sashida,K.: "Early Silurian (Llandoverian) radiolarians from the Ise area of the Hida Gaien Belt,central Japan"Paleontological Research. (in press). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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