Relation of submarine landslide to hydrate occurrences in Baiyun Depression, South China Sea

doi:10.1007/s11802-018-3458-1

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海地球物理与资源研究室

	Relation of submarine landslide to hydrate occurrences in Baiyun Depression, South China Sea
	Sun, Yunbao 2,3; Sun, Yunbao(Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Mineral Resou, Qingdao 266003, Peoples R China); Yang, Shengxiong 6; Wang, Lei 3; Wu, Shiguo1,4,5 ; Zhang, Xiaohua 7
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2018-02-01
卷号	17 期号:1 页码:129-138
关键词	Hydrate Canyon Submarine Slide South China Sea
DOI	10.1007/s11802-018-3458-1
产权排序	第1完成单位 ; 第2完成单位 ; 第3完成单位 ; 第4完成单位 ; 第5完成单位 ; 第6完成单位 ; 第7完成单位
文献子类	Article
英文摘要	Submarine landslides have been observed in the Baiyun Depression of the South China Sea. The occurrence of hydrates below these landslides indicates that these slope instabilities may be closely related to the massive release of methane. In this study, we used a simple Monte-Carlo model to determine the first-order deformation pattern of a gravitationally destabilizing slope. The results show that a stress concentration occurs due to hydrate dissociation on the nearby glide surface and on top of a gas chimney structure. Upon the dissolution of the gas hydrate, slope failure occurs due to the excess pore pressure generated by the dissociation of the gas hydrates. When gas hydrates dissociate at shallow depths, the excess pore pressure generated can be greater than the total stress acting at those points, along with the forces that resist sliding. Initially, the failure occurs at the toe of the slope, then extends to the interior. Although our investigation focused only on the contribution of hydrate decomposition to submarine landslide, this process is also affected by both the slope material properties and topography.
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WOS关键词	NORTHERN CONTINENTAL-SLOPE ; GULF-OF-MEXICO ; GAS-HYDRATE ; SHENHU AREA ; SEISMIC DATA ; OFFSHORE MAURITANIA ; STOREGGA SLIDE ; ITALIAN ALPS ; MARGIN ; CANYON
语种	英语
WOS记录号	WOS:000419533800013
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/5262]
专题	深海科学研究部_深海地球物理与资源研究室
通讯作者	Sun, Yunbao; Sun, Yunbao(Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Mineral Resou, Qingdao 266003, Peoples R China)
作者单位	1.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 2.Qingdao Inst Marine Geol, Gas Hydrate Geol Div, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Mineral Resou, Qingdao 266003, Peoples R China 4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesources, Sanya 572000, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China 6.MLR, Guangzhou Marine Geol Survey, Guangzhou 510760, Guangdong, Peoples R China 7.Ocean Univ China, Coll Marine Geosci, Qingao 266100, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yunbao,Sun, Yunbao,Yang, Shengxiong,et al. Relation of submarine landslide to hydrate occurrences in Baiyun Depression, South China Sea[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(1):129-138.
APA	Sun, Yunbao,Sun, Yunbao,Yang, Shengxiong,Wang, Lei,Wu, Shiguo,&Zhang, Xiaohua.(2018).Relation of submarine landslide to hydrate occurrences in Baiyun Depression, South China Sea.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(1),129-138.
MLA	Sun, Yunbao,et al."Relation of submarine landslide to hydrate occurrences in Baiyun Depression, South China Sea".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.1(2018):129-138.