FN Archimer Export Format PT J TI Intermediate water warming caused methane hydrate instability in South China Sea during past interglacials BT AF Li, Niu Wang, Xudong Feng, Junxi Chen, Fang Zhou, Yang Wang, Maoyu Chen, Tianyu Bayon, Germain Peckmann, Jörn Cheng, Hai Edwards, R. Lawrence Chen, Duofu Feng, Dong AS 1:1,2;2:3;3:4;4:4;5:4;6:5;7:5;8:6;9:7;10:8,9,10;11:11;12:2,3;13:2,3; FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-REM-GEOOCEAN-ASTRE;9:;10:;11:;12:;13:; C1 Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China Shanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China Ministry of Land and Resources, Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, Guangzhou 510075, China State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China IFREMER, Marine Geosciences Unit, F-29280 Plouzané, France Institute for Geology, Center for Earth System Research and Sustainability, Universität Hamburg, 20146 Hamburg, Germany Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710054, China State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Key Laboratory of Karst Dynamics, Ministry of Land and Resources, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China Department of Earth Sciences, University of Minnesota, Minneapolis, Minnesota 55455, USA C2 CHINESE ACAD SCI, CHINA QINGDAO NATL LAB MARINE SCI & TECHNOL QNLM, CHINA UNIV SHANGHAI OCEAN, CHINA GUANGZHOU MARINE GEOL SURVEY, CHINA UNIV NANJING, CHINA IFREMER, FRANCE UNIV HAMBURG, GERMANY UNIV XI AN JIAO TONG, CHINA CHINESE ACAD SCI, CHINA CHINESE ACAD GEOLOGICAL SCI, CHINA UNIV MINNESOTA, USA SI BREST SE PDG-REM-GEOOCEAN-ASTRE UM GEO-OCEAN IN WOS Ifremer UMR copubli-europe copubli-int-hors-europe copubli-sud IF 4.9 TC 1 UR https://archimer.ifremer.fr/doc/00883/99492/109623.pdf LA English DT Article AB Methane hydrates are widely distributed along continental margins, representing a potential source of methane to the ocean and atmosphere, possibly influencing Earth’s climate. Yet, little is known about the response of methane hydrates to global climate change, especially at the timescale of glacial-interglacial cycles. Here we present a chronology of methane seepage from seep carbonates derived from a series of tens to hundreds of meters long hydrate-bearing sediment records from the South China Sea, drilled at water depths of 664−871 m. We find that six out of seven episodes of intense methane seepage during the last 440,000 years were related to hydrate dissociation, all coinciding with major interglacials, the so-called Marine Isotope Stages 1, 5e, 7c, 9c, and 11c. Using numerical modeling, we show that these events of methane hydrate instability were possibly triggered by the rapid warming of intermediate waters by ∼2.5−3.5 °C in the South China Sea. This finding provides direct evidence for the sensitivity of the deep marine methane hydrate reservoir to glacial-interglacial climatic and oceanographic cyclicity. PY 2024 PD MAR SO Geological Society Of America Bulletin SN 0016-7606 PU Geological Society of America VL 136 IS 2-3 UT 001190343600001 BP 917 EP 927 DI 10.1130/B36859.1 ID 99492 ER EF