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

Type Article
Date 2023-09
Language English
Author(s) Chu MengfanORCID1, Bao RuiORCID1, Strasser MichaelORCID2, Ikehara KenORCID3, Everest JezORCID4, Maeda Lena5, Hochmuth KatharinaORCID6, 7, Xu LiORCID8, McNichol Ann9, Bellanova PieroORCID10, Rasbury TroyORCID11, Kölling MartinORCID12, Riedinger NataschaORCID13, Johnson JoelORCID14, Luo MinORCID15, März Christian16, 17, Straub SusanneORCID18, Jitsuno Kana19, Brunet Morgane20, Cai Zhirong21, Cattaneo AntonioORCID22, Hsiung Kanhsi23, Ishizawa Takashi24, Itaki Takuya3, Kanamatsu Toshiya25, Keep MyraORCID26, Kioka ArataORCID27, McHugh Cecilia28, Micallef Aaron29, Pandey DhananjaiORCID30, Proust Jean Noël20, Satoguchi YasufumiORCID31, Sawyer DerekORCID32, Seibert Chloé33, Silver MaxwellORCID34, Virtasalo JoonasORCID35, Wang Yonghong36, Wu Ting-WeiORCID12, 37, Zellers SarahORCID38
Affiliation(s) 1 : 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
2 : University of Innsbruck, Institute of Geology, Innsbruck, Austria
3 : National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Institute of Geology and Geoinformation, Ibaraki, 305-8567, Japan
4 : British Geological Survey, Lyell Centre, Edinburgh, EH14 4AP, UK
5 : Center for Deep Earth Exploration, Japan Agency for Marine-Earth Science and Technology, Kanagawa, 236-0001, Japan
6 : School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
7 : 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
8 : NOSAMS Laboratory, Woods Hole Oceanographic Institution, Massachusetts, USA
9 : Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Massachusetts, USA
10 : RWTH Aachen University, Institute of Neotectonics and Natural Hazards & Institute of Geology and Geochemistry of Petroleum and Coal, 52056, Aachen, Germany
11 : Stony Brook University, Department of Geosciences, New York, 11794, USA
12 : MARUM – Center for Marine Environmental Science, University of Bremen, Bremen, 28359, Germany
13 : Boone Pickens School of Geology, Oklahoma State University, Oklahoma, 74078, USA
14 : University of New Hampshire, Department of Earth Sciences, New Hampshire, 03824, USA
15 : Shanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai, China
16 : School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
17 : Institute for Geosciences, University of Bonn, Nussallee 8, 53115, Bonn, Germany
18 : Lamont Doherty Earth Observatory, Geochemistry Division, New York, 10964, USA
19 : Department of Life Science and Medical Bioscience, Waseda University, Tokyo, 162−0041, Japan
20 : Univ Rennes, CNRS, Géosciences Rennes, UMR 6118, 35000, Rennes, France
21 : Kyoto University, Department of Geology and Mineralogy, Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto, 606-8502, Japan
22 : Geo-Ocean, UMR 6538, Univ Brest, CNRS, Ifremer, Plouzané, F-29280, France
23 : Research Institute for Marine Geodynamics, JAMSTEC, Marine Geology and Geophysics Research Group, Subduction Dynamics Research Center, Kanagawa, 237-0061, Japan
24 : International Research Institute of Disaster Science, Tohoku University, Sendai, 980-0845, Japan
25 : Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute of Marine Geodynamics (IMG), Yokosuka, 237−0061, Japan
26 : The University of Western Australia, Department School of Earth Sciences, Perth, Australia
27 : Kyushu University, Department of Earth Resources Engineering, Fukuoka, 819−0395, Japan
28 : Queens College, City University of New York, School of Earth and Environmental Sciences, New York, 11367, USA
29 : GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, D-24148, Germany
30 : National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Government of India, Goa, 403 804, India
31 : Lake Biwa Museum, Shiga, 525-0001, Japan
32 : The Ohio State University, School of Earth Sciences, Ohio, 43210, USA
33 : Lamont Doherty Earth Observatory, Marine geology and geophysics division, New York, 10964, USA
34 : Colorado School of Mines, Hydrologic Science and Engineering, Colorado, 80227, USA
35 : Geological Survey of Finland (GTK), Espoo, 02151, Finland
36 : Ocean University of China, Department of Marine Geosciences, Qingdao, 266100, China
37 : Norwegian Geotechnical Institute, Oslo, Norway
38 : University of Central Missouri, Department of Physical Sciences, Missouri, 64093, USA
Source Nature Communications (2041-1723) (Springer Science and Business Media LLC), 2023-09 , Vol. 14 , N. 1 , P. 5427 (9p.)
DOI 10.1038/s41467-023-41116-w
WOS© Times Cited 3

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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Chu Mengfan, Bao Rui, Strasser Michael, Ikehara Ken, Everest Jez, Maeda Lena, Hochmuth Katharina, Xu Li, McNichol Ann, Bellanova Piero, Rasbury Troy, Kölling Martin, Riedinger Natascha, Johnson Joel, Luo Min, März Christian, Straub Susanne, Jitsuno Kana, Brunet Morgane, Cai Zhirong, Cattaneo Antonio, Hsiung Kanhsi, Ishizawa Takashi, Itaki Takuya, Kanamatsu Toshiya, Keep Myra, Kioka Arata, McHugh Cecilia, Micallef Aaron, Pandey Dhananjai, Proust Jean Noël, Satoguchi Yasufumi, Sawyer Derek, Seibert Chloé, Silver Maxwell, Virtasalo Joonas, Wang Yonghong, Wu Ting-Wei, Zellers Sarah (2023). Earthquake-enhanced dissolved carbon cycles in ultra-deep ocean sediments. Nature Communications, 14(1), 5427 (9p.). Publisher's official version : , Open Access version :