Insights about the structure and development of Zhongsha Bank in the South China Sea from integrated geophysical modelling

doi:10.1080/00206814.2019.1653798

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

	Insights about the structure and development of Zhongsha Bank in the South China Sea from integrated geophysical modelling
	Huang, Haibo 1,2; He, Enyuan 1,2; Qiu, Xuelin 1,2; Guo, Xingwei 3,4; Fan, Jianke 5; Zhang, Xunhua 3
刊名	INTERNATIONAL GEOLOGY REVIEW
	2019-08-19
页码	11
关键词	South China Sea Zhongsha Bank continental block geophysical modelling ridge propagation
ISSN号	0020-6814
DOI	10.1080/00206814.2019.1653798
通讯作者	Guo, Xingwei(xwguo_qd@126.com)
英文摘要	We construct a complete density transection based on the velocity structures across the Zhongsha Bank in the South China Sea. Gravity modelling of the lateral density contrasts between tectonic units helps us to determine the structural attributes and boundaries between continental blocks and deep basins. The configuration of the continent-ocean boundary (COB) around the Zhongsha Bank is mapped based on the gravity/magnetic anomaly and crustal structures. A low-density mantle is found beneath the Zhongsha Bank and the oceanic basins, and this mantle is associated with the high heat-flow background. The COB orientation is northeast-east in the north of the bank, with faulted linear structures. In further southeast, where there is a more intact crust, the COB orientation changed to north-northeast. The reconstructed density model and gravity/magnetic map indicate that the Zhongsha Bank is conjugated with the Liyue Bank by a rifted basin, where the crust had experienced localized deformation before the seafloor spreading. Because of the insufficient magmatism in the oceanic basin, the spreading ridge propagates into the weakened continental lithosphere between the two continental blocks, thus completely separating the Zhongsha Bank from the Liyue Bank. Seafloor spreading ridge jumps within the South China Sea may also be affected by the heterogeneous lithosphere beneath the continental blocks and oceanic basins.
资助项目	National Natural Science Foundation of China[41306046] ; National Natural Science Foundation of China[41676045] ; Project of Geological and Geophysical Series Maps of China[GZH200900504] ; Guangdong NSF research team project[2017A030312002]
WOS研究方向	Geology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000482046800001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/162357]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Guo, Xingwei
作者单位	1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China 2.Chiese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou, Guangdong, Peoples R China 3.Qingdao Inst Marine Geol, Qingdao, Shandong, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Resources, Qingdao 266235, Shandong, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, KEY Lab Marine Geol & Environm, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Huang, Haibo,He, Enyuan,Qiu, Xuelin,et al. Insights about the structure and development of Zhongsha Bank in the South China Sea from integrated geophysical modelling[J]. INTERNATIONAL GEOLOGY REVIEW,2019:11.
APA	Huang, Haibo,He, Enyuan,Qiu, Xuelin,Guo, Xingwei,Fan, Jianke,&Zhang, Xunhua.(2019).Insights about the structure and development of Zhongsha Bank in the South China Sea from integrated geophysical modelling.INTERNATIONAL GEOLOGY REVIEW,11.
MLA	Huang, Haibo,et al."Insights about the structure and development of Zhongsha Bank in the South China Sea from integrated geophysical modelling".INTERNATIONAL GEOLOGY REVIEW (2019):11.