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Chu M, Bao R, Strasser M, Ikehara K, Everest J, Maeda L, Hochmuth K, Xu L, McNichol A, Bellanova P, Rasbury T, Kölling M, Riedinger N, Johnson J, Luo M, März C, Straub S, Jitsuno K, Brunet M, Cai Z, Cattaneo A, Hsiung K, Ishizawa T, Itaki T, Kanamatsu T, Keep M, Kioka A, McHugh C, Micallef A, Pandey D, Proust JN, Satoguchi Y, Sawyer D, Seibert C, Silver M, Virtasalo J, Wang Y, Wu TW, Zellers S. Earthquake-enhanced dissolved carbon cycles in ultra-deep ocean sediments. Nat Commun 2023; 14:5427. [PMID: 37696798 PMCID: PMC10495447 DOI: 10.1038/s41467-023-41116-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/23/2023] [Indexed: 09/13/2023] Open
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.
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Affiliation(s)
- Mengfan Chu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Rui Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Michael Strasser
- University of Innsbruck, Institute of Geology, Innsbruck, Austria
| | - Ken Ikehara
- National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Institute of Geology and Geoinformation, Ibaraki, 305-8567, Japan
| | - Jez Everest
- British Geological Survey, Lyell Centre, Edinburgh, EH14 4AP, UK
| | - Lena Maeda
- Center for Deep Earth Exploration, Japan Agency for Marine-Earth Science and Technology, Kanagawa, 236-0001, Japan
| | - Katharina Hochmuth
- School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
- Australian Centre for Excellence in Antarctic Sciences, Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point TAS, Churchill Ave, 7004, Australia
| | - Li Xu
- NOSAMS Laboratory, Woods Hole Oceanographic Institution, Massachusetts, USA
| | - Ann McNichol
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Massachusetts, USA
| | - Piero Bellanova
- RWTH Aachen University, Institute of Neotectonics and Natural Hazards & Institute of Geology and Geochemistry of Petroleum and Coal, 52056, Aachen, Germany
| | - Troy Rasbury
- Stony Brook University, Department of Geosciences, New York, 11794, USA
| | - Martin Kölling
- MARUM - Center for Marine Environmental Science, University of Bremen, Bremen, 28359, Germany
| | - Natascha Riedinger
- Boone Pickens School of Geology, Oklahoma State University, Oklahoma, 74078, USA
| | - Joel Johnson
- University of New Hampshire, Department of Earth Sciences, New Hampshire, 03824, USA
| | - Min Luo
- Shanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai, China
| | - Christian März
- School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
- Institute for Geosciences, University of Bonn, Nussallee 8, 53115, Bonn, Germany
| | - Susanne Straub
- Lamont Doherty Earth Observatory, Geochemistry Division, New York, 10964, USA
| | - Kana Jitsuno
- Department of Life Science and Medical Bioscience, Waseda University, Tokyo, 162-0041, Japan
| | - Morgane Brunet
- Univ Rennes, CNRS, Géosciences Rennes, UMR 6118, 35000, Rennes, France
| | - Zhirong Cai
- Kyoto University, Department of Geology and Mineralogy, Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto, 606-8502, Japan
| | - Antonio Cattaneo
- Geo-Ocean, UMR 6538, Univ Brest, CNRS, Ifremer, Plouzané, F-29280, France
| | - Kanhsi Hsiung
- Research Institute for Marine Geodynamics, JAMSTEC, Marine Geology and Geophysics Research Group, Subduction Dynamics Research Center, Kanagawa, 237-0061, Japan
| | - Takashi Ishizawa
- International Research Institute of Disaster Science, Tohoku University, Sendai, 980-0845, Japan
| | - Takuya Itaki
- National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Institute of Geology and Geoinformation, Ibaraki, 305-8567, Japan
| | - Toshiya Kanamatsu
- Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute of Marine Geodynamics (IMG), Yokosuka, 237-0061, Japan
| | - Myra Keep
- The University of Western Australia, Department School of Earth Sciences, Perth, Australia
| | - Arata Kioka
- Kyushu University, Department of Earth Resources Engineering, Fukuoka, 819-0395, Japan
| | - Cecilia McHugh
- Queens College, City University of New York, School of Earth and Environmental Sciences, New York, 11367, USA
| | - Aaron Micallef
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, D-24148, Germany
| | - Dhananjai Pandey
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Government of India, Goa, 403 804, India
| | - Jean Noël Proust
- Univ Rennes, CNRS, Géosciences Rennes, UMR 6118, 35000, Rennes, France
| | | | - Derek Sawyer
- The Ohio State University, School of Earth Sciences, Ohio, 43210, USA
| | - Chloé Seibert
- Lamont Doherty Earth Observatory, Marine geology and geophysics division, New York, 10964, USA
| | - Maxwell Silver
- Colorado School of Mines, Hydrologic Science and Engineering, Colorado, 80227, USA
| | | | - Yonghong Wang
- Ocean University of China, Department of Marine Geosciences, Qingdao, 266100, China
| | - Ting-Wei Wu
- MARUM - Center for Marine Environmental Science, University of Bremen, Bremen, 28359, Germany
- Norwegian Geotechnical Institute, Oslo, Norway
| | - Sarah Zellers
- University of Central Missouri, Department of Physical Sciences, Missouri, 64093, USA
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