Shallow anatomy of a continent-ocean transition zone in the northern South China Sea from multichannel seismic data

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	Shallow anatomy of a continent-ocean transition zone in the northern South China Sea from multichannel seismic data
	Zhu, JJ ; Qiu, XL ; Kopp, H ; Xu, HL ; Sun, ZX ; Ruan, AG ; Sun, JL ; Wei, XD
刊名	TECTONOPHYSICS
	2012
卷号	554 页码:18-29
关键词	Continent ocean transition zone Multi-channel seismic data South China Sea Continental passive margins
ISSN号	0040-1951
通讯作者	jzhu@scsio.ac.cn ; xlqiu@scsio.ac.cn ; hkopp@geomar.de ; hlxu@scsio.ac.cn ; sunzx@scsio.ac.cn ; ruanag@163.com ; sunjl@scsio.ac.cn ; xdwei@scsio.ac.cn
中文摘要	The Cenozoic tectonic evolution of the South China Sea is reflected in diverse tectonic processes including continental rifting, seafloor spreading, subduction, terrane collision and strike-slip fault movement. A continent-ocean transition zone in the northern South China Sea caused by the lithospheric extension when the continent underwent break-up, rifting and later seafloor spreading, is clearly imaged in the multi-channel seismic data presented in this study. The morphological units of the continent-ocean transition zone are the rift-depression, the volcanic zone and tilted fault blocks. The volcanic zone represents a highest extension zone within the continent-ocean transition zone and is mainly distributed in the southern slope uplift zone along the northern passive margin of the South China Sea. The large listric-normal faults bounding the Dongsha Rise and Baiyun Sag are evidenced in the seismic image. The passive margin in the northern South China Sea underwent the wide-rift to narrow-rift process in the transition zone as inferred from the relation between the surface heat flow and initial rifted crustal thickness. The continent-ocean transition zone in the continental margin of the South China Sea is consistent with high heat flow zone (average 90 mW.m(-2)) observed in the previous heat flow measurements and at ODP Site 1148, and is manifested in a sharp change of the P-wave velocity. The rifted margin of the South China Sea is a non-typical magma poor passive margin or an intermediary form between the Iberian-type non-volcanic and the Greenland-type volcanic margin compared to the world's typical passive margins. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000307136900002
公开日期	2013-08-28
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10325]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	Zhu, JJ,Qiu, XL,Kopp, H,et al. Shallow anatomy of a continent-ocean transition zone in the northern South China Sea from multichannel seismic data[J]. TECTONOPHYSICS,2012,554:18-29.
APA	Zhu, JJ.,Qiu, XL.,Kopp, H.,Xu, HL.,Sun, ZX.,...&Wei, XD.(2012).Shallow anatomy of a continent-ocean transition zone in the northern South China Sea from multichannel seismic data.TECTONOPHYSICS,554,18-29.
MLA	Zhu, JJ,et al."Shallow anatomy of a continent-ocean transition zone in the northern South China Sea from multichannel seismic data".TECTONOPHYSICS 554(2012):18-29.