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Earthquake-enhanced dissolved carbon cycles in ultra-deep ocean sediments

Author

Listed:
  • Mengfan Chu

    (Ocean University of China)

  • Rui Bao

    (Ocean University of China)

  • Michael Strasser

    (Institute of Geology)

  • Ken Ikehara

    (Institute of Geology and Geoinformation)

  • Jez Everest

    (Lyell Centre)

  • Lena Maeda

    (Japan Agency for Marine-Earth Science and Technology)

  • Katharina Hochmuth

    (University of Leicester
    University of Tasmania)

  • Li Xu

    (Woods Hole Oceanographic Institution)

  • Ann McNichol

    (Woods Hole Oceanographic Institution)

  • Piero Bellanova

    (Institute of Neotectonics and Natural Hazards & Institute of Geology and Geochemistry of Petroleum and Coal)

  • Troy Rasbury

    (Department of Geosciences)

  • Martin Kölling

    (University of Bremen)

  • Natascha Riedinger

    (Oklahoma State University)

  • Joel Johnson

    (Department of Earth Sciences)

  • Min Luo

    (Shanghai Ocean University)

  • Christian März

    (University of Leeds
    University of Bonn)

  • Susanne Straub

    (Geochemistry Division)

  • Kana Jitsuno

    (Waseda University)

  • Morgane Brunet

    (Géosciences Rennes)

  • Zhirong Cai

    (Graduate School of Science)

  • Antonio Cattaneo

    (Univ Brest, CNRS, Ifremer)

  • Kanhsi Hsiung

    (Subduction Dynamics Research Center)

  • Takashi Ishizawa

    (Tohoku University)

  • Takuya Itaki

    (Institute of Geology and Geoinformation)

  • Toshiya Kanamatsu

    (Research Institute of Marine Geodynamics (IMG))

  • Myra Keep

    (Department School of Earth Sciences)

  • Arata Kioka

    (Department of Earth Resources Engineering)

  • Cecilia McHugh

    (School of Earth and Environmental Sciences)

  • Aaron Micallef

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Dhananjai Pandey

    (Government of India)

  • Jean Noël Proust

    (Géosciences Rennes)

  • Yasufumi Satoguchi

    (Lake Biwa Museum)

  • Derek Sawyer

    (School of Earth Sciences)

  • Chloé Seibert

    (Marine geology and geophysics division)

  • Maxwell Silver

    (Hydrologic Science and Engineering)

  • Joonas Virtasalo

    (Geological Survey of Finland (GTK))

  • Yonghong Wang

    (Department of Marine Geosciences)

  • Ting-Wei Wu

    (University of Bremen
    Norwegian Geotechnical Institute)

  • Sarah Zellers

    (Department of Physical Sciences)

Abstract

Hadal trenches are unique geological and ecological systems located along subduction zones. Earthquake-triggered turbidites act as efficient transport pathways of organic carbon (OC), yet remineralization and transformation of OC in these systems are not comprehensively understood. Here we measure concentrations and stable- and radiocarbon isotope signatures of dissolved organic and inorganic carbon (DOC, DIC) in the subsurface sediment interstitial water along the Japan Trench axis collected during the IODP Expedition 386. We find accumulation and aging of DOC and DIC in the subsurface sediments, which we interpret as enhanced production of labile dissolved carbon owing to earthquake-triggered turbidites, which supports intensive microbial methanogenesis in the trench sediments. The residual dissolved carbon accumulates in deep subsurface sediments and may continue to fuel the deep biosphere. Tectonic events can therefore enhance carbon accumulation and stimulate carbon transformation in plate convergent trench systems, which may accelerate carbon export into the subduction zones.

Suggested Citation

  • Mengfan Chu & Rui Bao & Michael Strasser & Ken Ikehara & Jez Everest & Lena Maeda & Katharina Hochmuth & Li Xu & Ann McNichol & Piero Bellanova & Troy Rasbury & Martin Kölling & Natascha Riedinger & J, 2023. "Earthquake-enhanced dissolved carbon cycles in ultra-deep ocean sediments," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41116-w
    DOI: 10.1038/s41467-023-41116-w
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    References listed on IDEAS

    as
    1. Stefan Farsang & Marion Louvel & Chaoshuai Zhao & Mohamed Mezouar & Angelika D. Rosa & Remo N. Widmer & Xiaolei Feng & Jin Liu & Simon A. T. Redfern, 2021. "Deep carbon cycle constrained by carbonate solubility," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Rui Bao & Michael Strasser & Ann P. McNichol & Negar Haghipour & Cameron McIntyre & Gerold Wefer & Timothy I. Eglinton, 2018. "Tectonically-triggered sediment and carbon export to the Hadal zone," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    3. Steven D’Hondt & Robert Pockalny & Victoria M. Fulfer & Arthur J. Spivack, 2019. "Subseafloor life and its biogeochemical impacts," Nature Communications, Nature, vol. 10(1), pages 1-13, December.
    4. Shanshan Yang & Yongxin Lv & Xipeng Liu & Yinzhao Wang & Qilian Fan & Zhifeng Yang & Nico Boon & Fengping Wang & Xiang Xiao & Yu Zhang, 2020. "Genomic and enzymatic evidence of acetogenesis by anaerobic methanotrophic archaea," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
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