Evolution of gas hydrates inventory and anaerobic oxidation of methane (AOM) after 40ka in the Taixinan Basin, South China Sea

doi:10.1016/j.dsr.2019.103084

	Evolution of gas hydrates inventory and anaerobic oxidation of methane (AOM) after 40ka in the Taixinan Basin, South China Sea
	Xie, Rui 1,2,4; Wu, Daidai 1,2,3; Liu, Jie 1,2; Sun, Tiantian 1; Liu, Lihua 1; Wu, Nengyou 3,5
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2019-10-01
卷号	152 页码:9
关键词	Gas hydrate inventory Climate change Methane leak Anaerobic oxidation of methane
ISSN号	0967-0637
DOI	10.1016/j.dsr.2019.103084
通讯作者	Wu, Daidai(wudd@ms.giec.ac.cn)
英文摘要	Gas hydrates are the largest carbon sink on the earth and have an important impact on global climate and the environment. We studied the delta S-34,delta C-13, major trace elements and P -Fe dates at station 973-4 which acquired from the cold seep area of the Taixinan Basin. The results showed that during the Last Glacial Maximum (LGM), Younger Dryas (YD), and the Last Deglaciation, Gas hydrate inventory (GHI) was significantly reduced. And during the LGM, anaerobic oxidation of methane played an important role in preventing methane from leaking into seawater and the atmosphere. Because that there was no acidification of seawater or increase in Pun. Meanwhile, rapid rate of sediment accumulation caused by isobaric flow provided accumulated material for Anaerobic Oxidation of Methan (AOM) during the LGM. The rapid rate of sediment accumulation also created a good environment for the formation of Pm and vivianite below the sulfate methane transition zone (SMTZ). And according to changes of elements with depth, we conclude that the effect of methane anaerobic oxidation on redistribution of elemental P-Fe is divided into three processes: SMTZ rapid movement (material accumulation); SMTZ gradually stable; and SMTZ fixation process. In this paper, the effects of sedimentary evolution and hydrate evolution on AOM are studied in detail, which is of great significance for further understanding of anaerobic oxidation of methane.
资助项目	Municipal Science and Technology Program of Guangzhou[201904010311] ; Special project for marine economy development of Guangdong Province[GDME-2018D002] ; Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences[ISEE2018YB03] ; Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Sciences and Technology (Qingdao)[KC201703]
WOS关键词	AUTHIGENIC APATITE ; VESTNESA RIDGE ; SHENHU AREA ; SEDIMENTS ; TRANSITION ; RATIOS ; CARBONATE ; HISTORY ; SULFUR ; PYRITE
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000497251500003
资助机构	Municipal Science and Technology Program of Guangzhou ; Special project for marine economy development of Guangdong Province ; Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences ; Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Sciences and Technology (Qingdao)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25919]
专题	中国科学院广州能源研究所
通讯作者	Wu, Daidai
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst South China Sea Ecol & Environm Engn, Guangzhou 510301, Guangdong, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266071, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Minist Nat Resources, Qingdao Inst Marine Geol, Key Lab Gas Hydrate, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Xie, Rui,Wu, Daidai,Liu, Jie,et al. Evolution of gas hydrates inventory and anaerobic oxidation of methane (AOM) after 40ka in the Taixinan Basin, South China Sea[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2019,152:9.
APA	Xie, Rui,Wu, Daidai,Liu, Jie,Sun, Tiantian,Liu, Lihua,&Wu, Nengyou.(2019).Evolution of gas hydrates inventory and anaerobic oxidation of methane (AOM) after 40ka in the Taixinan Basin, South China Sea.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,152,9.
MLA	Xie, Rui,et al."Evolution of gas hydrates inventory and anaerobic oxidation of methane (AOM) after 40ka in the Taixinan Basin, South China Sea".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 152(2019):9.