Earthquake-enhanced dissolved carbon cycles in ultra-deep ocean sediments
| Type | Article | ||||||||||||||||||||||||||||
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| Date | 2023-09 | ||||||||||||||||||||||||||||
| Language | English | ||||||||||||||||||||||||||||
| Author(s) | Chu Mengfan 1, Bao Rui1, Strasser Michael2, Ikehara Ken3, Everest Jez4, Maeda Lena5, Hochmuth Katharina6, 7, Xu Li8, McNichol Ann9, Bellanova Piero10, Rasbury Troy11, Kölling Martin12, Riedinger Natascha13, Johnson Joel14, Luo Min15, März Christian16, 17, Straub Susanne18, Jitsuno Kana19, Brunet Morgane20, Cai Zhirong21, Cattaneo Antonio22, Hsiung Kanhsi23, Ishizawa Takashi24, Itaki Takuya3, Kanamatsu Toshiya25, Keep Myra26, Kioka Arata27, McHugh Cecilia28, Micallef Aaron29, Pandey Dhananjai30, Proust Jean Noël20, Satoguchi Yasufumi31, Sawyer Derek32, Seibert Chloé33, Silver Maxwell34, Virtasalo Joonas35, Wang Yonghong36, Wu Ting-Wei12, 37, Zellers Sarah38 |
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| 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 |
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| 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 | ||||||||||||||||||||||||||||
| 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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