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Earth system changes across Superanoxia decoded by statistical analyses

Research Project

Project/Area Number 20K14596
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 17050:Biogeosciences-related
Research InstitutionKyushu University (2023)
Kochi University (2020-2022)

Principal Investigator

Soda Katsuhito  九州大学, 理学研究院, 学術研究員 (40850459)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords地質学 / データ解析 / 海洋無酸素事変
Outline of Research at the Start

遠洋深海堆積岩は多様な起源物質の複雑な混合(陸源,生物源,海水起源,火山起源,熱水起源など)によって構成されるため,単純な解釈が不可能である.そこで本研究では,遠洋深海堆積岩の化学分析に加えてデータ解析を組み込むことによって,超海洋無酸素事変における地球環境変動の解明を目指す.また微化石ー炭素同位体層序を確立し,高解像度年代モデルを確立する.これらをデータ解析によって統合し,超海洋無酸素事変における地球環境変動を解明する.

Outline of Final Research Achievements

Deep-sea pelagic sedimentary rocks are composed of a complex mixture of various source materials, which makes simple interpretation impossible. In this study, we aim to decode the Earth system changes across the Superanoxia by geochemical data analysis of deep-sea pelagic sedimentary rocks. We have also established a microfossil-carbon isotope stratigraphy and a high-resolution age model. These are integrated by data analysis to decode the Earth system changes across the Superanoxia.

Academic Significance and Societal Importance of the Research Achievements

超海洋無酸素事変における古環境復元では,データ間の対比・統合が適切ではないのが現状である.遠洋深海堆積岩はグローバルな環境変動を反映しやすい一方,多様で複雑な起源を示すため絵合わせ的解釈が通用しない.本研究ではその特徴を逆手に取り,データ解析を駆使することで,各起源物質を一度に分離・抽出することが可能である.そのため本研究は,超海洋無酸素事変における地球システム変動を解明する寄与するデータセットを世界に向けて発信できる.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] パドヴァ大学(イタリア)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Slovak Academy of Sciences(スロバキア)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Extreme continental weathering in the northwestern Tethys during the end-Triassic mass extinction2022

    • Author(s)
      Onoue, T., Michalik, J., Shirozu, H., Yamashita, K., Yamashita, M., Kusaka, S., Soda, K
    • Journal Title

      Palaeogeography, Palaeoclimatology, Palaeoecology

      Volume: 594 Pages: 110934-110934

    • DOI

      10.1016/j.palaeo.2022.110934

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of Deep-Sea Anoxia in Panthalassa During the Lopingian (Late Permian): Insights From Redox-Sensitive Elements and Multivariate Analysis2021

    • Author(s)
      Onoue Tetsuji、Soda Katsuhito、Isozaki Yukio
    • Journal Title

      Frontiers in Earth Science

      Volume: 8 Pages: 613126-613126

    • DOI

      10.3389/feart.2020.613126

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 美濃帯の三畳紀/ジュラ紀境界における連続層序の改訂と古環境復元2022

    • Author(s)
      曽田勝仁,冨松由希,尾上哲治,池原 実
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Extreme continental weathering in the northwestern Tethys during the Triassic-Jurassic transition2022

    • Author(s)
      尾上哲治,Michalik Josef, 白水秀子,山下美沙,山下勝行,日下宗一郎,曽田勝仁
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 後期三畳紀Carnian Pluvial Episodeにおけるパンサラッサ遠洋深海域での古海洋環境変動の復元2022

    • Author(s)
      曽田 勝仁,尾上 哲治
    • Organizer
      日本地質学会
    • Related Report
      2022 Research-status Report
  • [Presentation] ペルム紀/三畳紀境界における地球外3He流入量の変動: 地球科学と惑星科学の境界領域開拓を目指して2022

    • Author(s)
      尾上 哲治,高畑 直人,曽田 勝仁,佐野 有司,磯崎 行雄
    • Organizer
      日本地質学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Paleoenvironmental reconstruction based on the revised continuous stratigraphy across the Triassic-Jurassic boundary in the Mino Belt, central Japan2022

    • Author(s)
      Katsuhito Soda, Yuki Tomimatsu, Tetsuji Onoue, Minoru Ikehara
    • Organizer
      Goldschmidt Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Biotic extinction at the Norian/Rhaetian boundary (Upper Triassic): geochemical and isotope evidence of a previously unrecognised global event2022

    • Author(s)
      Manuel Rigo, Tetsuji Onoue, Honami Sato, Yuki Tomimatsu, Katsuhito Soda, Linda Godfrey, Miriam Katz, Hamish J. Campbell, Lydia Tackett, Martyn Golding, Jerry Lei, Jon Husson, Matteo Maron, Sara Satolli, Mariachiara Zaffani, Giuseppe Concheri, Angela Bertinelli, Marco Chiari, Lawrence Tanner
    • Organizer
      Goldschmidt Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Enhanced continental weathering in the NW Tethys during the end-Triassic mass extinction2022

    • Author(s)
      Tetsuji Onoue, Jozef Michalk, Hideko Shirozu, Misa Yamashita, Katsuyuki Yamashita, Soichiro Kusaka, Katsuhito Soda
    • Organizer
      Goldschmidt Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 美濃帯における三畳紀/ジュラ紀境界層の再検討2021

    • Author(s)
      曽田勝仁・冨松由希・山下大輔・尾上哲治・池原 実
    • Organizer
      地質学会
    • Related Report
      2021 Research-status Report
  • [Presentation] テチス海北西部における大陸風化の増加と三畳紀末大量絶滅2021

    • Author(s)
      尾上哲治・J. Michalik・白水秀子・山下勝行・山下美沙・川上高平・日下宗一郎・曽田勝仁
    • Organizer
      地質学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Upper Triassic (Rhaetian) conodont biostratigraphy of the Panthalassa Ocean and the final extinction of conodonts at the end-Triassic2020

    • Author(s)
      Onoue, T., Yamasaki, K., Tomimatsu, Y., Yixing, D., Yamashita, D., Soda, K., and Manuel, R.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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