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High-resolution sulfur isotope analysis for reconstructing the perturbation of ocean redox condition during glacial-interglacial cycle

Research Project

Project/Area Number 21H01203
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 17050:Biogeosciences-related
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Ogawa Nanako O.  国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), グループリーダー (80359174)

Co-Investigator(Kenkyū-buntansha) 黒田 潤一郎  東京大学, 大気海洋研究所, 准教授 (10435836)
吉村 寿紘  国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), 副主任研究員 (90710070)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords硫黄同位体比 / 微量硫黄同位体比分析 / 炭酸置換型硫酸(CAS) / CAS弱酸性溶出法 / 硫酸ICIF法 / マイクロバライト化法 / 炭酸置換態硫酸 / 硫酸単離精製 / 分取イオンクロマトグラフィー / 有孔虫殻化石 / 硫黄同位体 / 海王硫黄循環 / 酸化還元環境 / 後期更新世 / 氷期-間氷期 / 海洋硫黄循環 / 氷期ー間氷期 / 海洋酸化還元環境 / 硫黄安定同位体比 / 浮遊性有孔虫
Outline of Research at the Start

過去100万年間の地球は、10万年周期の顕著な氷期-間氷期サイクルという地球史を通しても非常に激しい気候振動に特徴付けられる。本研究では、氷期-間氷期サイクルへの海洋の酸化還元環境と硫黄循環の応答を、硫黄同位体比変動の高解像度復元から解析する。代表者が開発した高精度な微量硫黄同位体比分析手法を、過去100万年間の氷期-間氷期サイクルが連続的に記録された西赤道太平洋オントンジャワ海台で採取された柱状堆積物中の浮遊性有孔虫殻化石に適用する。氷期-間氷期の数十万年単位の高解像度な硫黄動態解析には、より微量かつ高精度な硫黄同位体比分析が要求され、世界的にも研究例は限定的で知見も非常に少ない。

Outline of Final Research Achievements

This research aimed to assess the response of marine sulfur cycles to its redox changes during glacial-interglacial periods by sulfur Isotopic information from carbonate-associated sulfate (CAS) in foraminiferal fossils collected from marine sediments. We approached the subject by developing and optimizing micro-sulfur pretreatment and high-sensitivity isotopic analysis and observed 0.6‰ variations in sulfur isotope ratios in Ontong Java Plateau sediments between glacial and interglacial periods.
We developed three new technologies (weak acid CAS dissolution, ICFC purification, and nano barite forge) to isolate sulfate from small CAS samples to enable isotope analysis. Together with these pretreatment techniques and optimized trace sulfur EA/IRMS, we reconstructed the CAS sulfur isotopic record from marine sediments of the Ontong Java Plateau. This approach provides insight into the relationship between marine sulfur dynamics and glacial-interglacial climate change.

Academic Significance and Societal Importance of the Research Achievements

本研究では技術的な課題の克服というアプローチで、オントンジャワ海台堆積物からの氷期-間氷期の硫黄同位体比記録の復元に成功した。世界で初となる微量同位体変動の復元データはそれ自体が今後の海洋理解のための知見として意義を持つ。
一方、硫黄同位体比は多くの研究分野で活用されているものの、分析技術の高感度化では他の元素に大きく後れをとり、これまではエアロゾル(都市域を除く)、アイスコア、隕石など試料量が限られる研究への適用が難しかった。本研究で開発・最適化した微量硫黄試料の前処理および同位体分析の新手法は様々な研究に新しい解析ツールを提供し、各分野の研究の裾野を広げる効果を有するものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021 Other

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Genetic connectivity and isotopic niches of alvinocaridid shrimps from chemosynthetic habitats in Aotearoa/New Zealand, with a new Alvinocaris species2024

    • Author(s)
      Pierre Methou, Nanako O. Ogawa, Hidetaka Nomaki, Naohiko Ohkouchi, Chong Chen, Kareen Schnabel
    • Journal Title

      Marine Ecology Progress Series

      Volume: - Pages: 85-109

    • DOI

      10.3354/meps14611

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Carbonate Associated Sulfate Extraction Method Using Weakly Acidic Cation Exchange Resins2023

    • Author(s)
      Kochi Takeru、Yoshimura Toshihiro、Ogawa Nanako O.、Ohkouchi Naohiko、Kobayashi Yasuyuki、Kuroda Junichiro
    • Journal Title

      Geostandards and Geoanalytical Research

      Volume: 48 Issue: 1 Pages: 77-89

    • DOI

      10.1111/ggr.12536

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu2023

    • Author(s)
      Yoshimura, Toshihiro; Takano, Yoshinori; Naraoka, Hiroshi and 84 more (Yabuta, H.は26番目)
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 5284-5284

    • DOI

      10.1038/s41467-023-40871-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu2023

    • Author(s)
      Hashiguchi, Minako; Aoki, Dan; Fukushima, Kazuhiko and 51 more (Yabuta, H.は34番目)
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 73-73

    • DOI

      10.1186/s40623-023-01792-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu2023

    • Author(s)
      Naraoka Hiroshi、Takano Yoshinori、Dworkin Jason P.、Oba Yasuhiro、Hamase Kenji、Furusho Aogu、Ogawa Nanako O.、Hashiguchi Minako、Fukushima Kazuhiko、Aoki Dan ... Yabuta Hikaru ... et al.
    • Journal Title

      Science

      Volume: 379 Issue: 6634 Pages: 9033-9033

    • DOI

      10.1126/science.abn9033

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 蒸発実験とシチリア島塩田から採取した石膏および塩水試料を用いた石膏形成時の 硫黄同位体分別の推定2023

    • Author(s)
      古知 武、黒田 潤一郎、小川 奈々子、吉村 寿紘、大河内 直彦
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 分子レベル同位体分析の最先端技術:地球物質循環と生態環境解析のための有機化合物炭素窒素同位体分析2023

    • Author(s)
      小川 奈々子、高野 淑識、大河内 直彦
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 分子レベル同位体比計測の最先端技術:地球物質循環と生態環境解析のための有機化合物の炭素・窒素・硫黄同位体比分析法2023

    • Author(s)
      小川奈々子・ 髙野淑識・ 大河内直彦
    • Organizer
      第 71 回質量分析総合討論会 (2023)
    • Related Report
      2023 Annual Research Report
  • [Presentation] The impact of Antarctic ice sheet expansion (ca. 34 Ma) on silicate weathering, erosion and the carbon cycle: insights from Li and Mg isotopes2023

    • Author(s)
      Adam David Sproson, Toshihiro Yoshimura, Shigeyuki Wakaki, Takahiro Aze, Tsuyoshi Ishikawa, Yusuke Yokoyama,Naohiko Ohkouchi
    • Organizer
      Goldschmidt Conference 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurements and applications of compound-specific C, N, and S isotope ratios with HPLC purification system and ultra-sensitive EA/IRMS2022

    • Author(s)
      Nanako O. Ogawa
    • Organizer
      International Symposium on Isotope Physiology, Ecology, and Geochemistry 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Can Mg and Li isotopes in the authigenic and detrital fractions of sediments be used to trace paleoweathering? Case study: The EOT2022

    • Author(s)
      Adam David Sproson, Toshihiro Yoshimura, Takahiro AZE, Shigeyuki Wakaki, Tsuyoshi Ishikawa, Yusuke Yokoyama, Naohiko Ohkouchi
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water- and Acid-Soluble Components in the Asteroid Ryugu: Insight from Primordial Salt with Aqueous Alteration2022

    • Author(s)
      T. Yoshimura, Y. Takano, H. Naraoka, T. Koga, Y. Oba , N. O. Ogawa, N. Ohkouchi, S. Sakai, J. P. Dworkin , S. Tachibana, The Hayabusa2-initial-analysis SOM team, The Hayabusa2-initial-analysis core
    • Organizer
      53rd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 蒸発岩の硫黄同位体比を用いた中新世メッシニアン塩分危機における地中海の硫黄サイクル復元2021

    • Author(s)
      古知武、黒田潤一郎、小川奈々子、吉村寿紘、宮崎 隆、Vaglarov Bogdan S.、大河内直彦
    • Organizer
      Japan Geoscience Union (JpGU) Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超微量測定システムの開発と炭素質隕石中の炭素/窒素/硫黄の定量および多次元同位体比分析 の最適化2021

    • Author(s)
      小川 奈々子・高野 淑 識・大河内 直彦・奈良岡 浩
    • Organizer
      日本地球化学会第68回年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Sub-microgram sulfur isotope analysis for the biological, geological, and extraterrestrial samples by sensitivity-improved EA/IRMS2021

    • Author(s)
      小川 奈々子、吉村 寿紘、古知 武、黒田 潤一郎、高野 淑識、大河内 直彦
    • Organizer
      Japan Geoscience Union (JpGU) Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Remarks] 生物地球化学センター(BGC), JAMSTEC

    • URL

      https://www.jamstec.go.jp/biogeochem/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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