Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from<i> in-situ</i> experiments

doi:10.1016/j.epsl.2023.118469

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from in-situ experiments
	Zhang, Xiong 1,3,4; Luan, Zhendong 1,2,3,4; Du, Zengfeng 3,4; Xi, Shichuan 3,4; Li, Lianfu 3,4; Lian, Chao 3,4; Zhang, Jianxing 3,4; Yin, Ziyu 1,3,4; Ma, Liang 1,3,4; Zhang, Xin 1,2,3,4
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2023-12-15
卷号	624 页码:11
关键词	Chemosynthetic community Cold seep Gas hydrate capacitor In-situ experiment
ISSN号	0012-821X
DOI	10.1016/j.epsl.2023.118469
通讯作者	Zhang, Xin(xzhang@qdio.ac.cn)
英文摘要	Cold seep ecosystems are characterized by a dense accumulation of chemosynthetic communities that utilize the chemical energy contained in fluids. Due to various technical challenges, the direct monitoring of these communities and their activity shifts during the venting of cold seeps has not been achieved. In this study, an integrated in-situ long-term observation platform was used to monitor seep venting activity, associated gas hydrates, and chemosynthetic communities inhabiting the Formosa Ridge in the South China Sea. In-situ Raman spectral data obtained over 14 days revealed two periods during which cold seep venting formed gas hydrates, interspersed with periods of hydrate decomposition during non-active intervals. The methane concentration in the open seawater column near the cold seep vent fluctuated, with an average of 23.07 mu M (variance 28.71 mu M). Furthermore, the average coverage ratio of the dominant cold seep macrofauna Shinkaia crosnieri was 22.94 % (variance 0.11 %). We hypothesize that the methane concentrations and biological cover in chemosynthetic communities exhibit stability. This phenomenon may be related to the role of natural gas hydrate deposits as methane capacitors, as proposed by earth scientists.
资助项目	National Natural Science Foundation of China[92058206] ; National Natural Science Foundation of China[52001303] ; National Natural Science Foundation of China[42221005] ; National Natural Science Foundation of China[41822604] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203101] ; Strategic Priority Research Program, CAS[XDB42040302] ; Strategic Priority Research Program, CAS[XDA22050102] ; Young Taishan Scholars Program[tsqn201909158] ; Key Project of the Ocean Research Center, Chinese Academy of Sciences[COMS2020J03]
WOS关键词	NORTHERN CONGO FAN ; SEA-FLOOR ; ANAEROBIC OXIDATION ; TEMPORAL VARIATION ; RAMAN DETECTION ; METHANE ; MARINE ; MIGRATION ; OCEAN ; RIDGE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001115089600001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/184119]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Zhang, Xin
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Laoshan Lab, Lab Marine Geol, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiong,Luan, Zhendong,Du, Zengfeng,et al. Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from in-situ experiments[J]. EARTH AND PLANETARY SCIENCE LETTERS,2023,624:11.
APA	Zhang, Xiong.,Luan, Zhendong.,Du, Zengfeng.,Xi, Shichuan.,Li, Lianfu.,...&Zhang, Xin.(2023).Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from in-situ experiments.EARTH AND PLANETARY SCIENCE LETTERS,624,11.
MLA	Zhang, Xiong,et al."Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from in-situ experiments".EARTH AND PLANETARY SCIENCE LETTERS 624(2023):11.