Distribution and Characteristics of Hazardous Geological Features in the Marine Coastal and Offshore Areas of Zhejiang Province, East China Sea

doi:10.1007/s11802-018-3671-y

	Distribution and Characteristics of Hazardous Geological Features in the Marine Coastal and Offshore Areas of Zhejiang Province, East China Sea
	Qiu Jiandong 1,2; Liu Jian 1,2; Yue Nana 3; Wang Shuang 1; Mai Duc Dong 4
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2018-12
卷号	17 期号:6 页码:1318-1324
关键词	hazardous marine geological features shallow gas coastal and offshore areas East China Sea
ISSN号	1672-5182
DOI	10.1007/s11802-018-3671-y
英文摘要	y Newly acquired high-resolution shallow seismic profiles (7069 km in length) in the coastal and offshore areas of Zhejiang Province, East China Sea, China, have revealed eight marine hazardous geological features: shallow gas, sand ridges, erosion ditches, scarps, irregular bedrock features, underwater shoals, buried paleo-channels, and submarine deltas. Based on the seismic profiles, we have constructed a marine geological map of these hazardous features. Shallow gas accumulations are common and occur mainly in two separate nearshore regions that cover 4613 and 3382 km(2) respectively. There are also scattered shallow gas accumulations in the offshore area, typically accompanied by paleo-channels that occur mainly in the middle of the study area. Sand ridges, erosion ditches, scarps, and irregular bedrock features are found mainly in the northeast of the study area in association with each other. In the southeastern part of the study area, the sand ridges have a linear form and trend NW-SE, representing the western part of the linear sand ridges in the East China Sea. The maximum slope gradient is 1 degrees, which suggests that this area is prone to landslides. These hazardous marine geological features are important to marine and engineering activities in this region.
资助项目	China Geology Survey[GZH201200506] ; China Geology Survey[DD20160145]
WOS关键词	SHALLOW GAS ; GEOHAZARDS ; IDENTIFICATION ; SHELF
WOS研究方向	Oceanography
语种	英语
出版者	OCEAN UNIV CHINA
WOS记录号	WOS:000449886900007
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25523]
专题	自然资源部第一海洋研究所
通讯作者	Qiu Jiandong
作者单位	1.Qingdao Inst Marine Geol, Minist Nat Resources, Key Lab Marine Environm Geol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 4.Vietnam Acad Sci & Technol, Inst Marine Geol & Geophys, Hanoi 100000, Vietnam
推荐引用方式 GB/T 7714	Qiu Jiandong,Liu Jian,Yue Nana,et al. Distribution and Characteristics of Hazardous Geological Features in the Marine Coastal and Offshore Areas of Zhejiang Province, East China Sea[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(6):1318-1324.
APA	Qiu Jiandong,Liu Jian,Yue Nana,Wang Shuang,&Mai Duc Dong.(2018).Distribution and Characteristics of Hazardous Geological Features in the Marine Coastal and Offshore Areas of Zhejiang Province, East China Sea.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(6),1318-1324.
MLA	Qiu Jiandong,et al."Distribution and Characteristics of Hazardous Geological Features in the Marine Coastal and Offshore Areas of Zhejiang Province, East China Sea".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.6(2018):1318-1324.