The crustal structure beneath the Shidao station on Xisha Islands of South China Sea

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

	The crustal structure beneath the Shidao station on Xisha Islands of South China Sea
	Qiu, XL ; Zeng, GP ; Xu, Y ; Hao, TY ; Li, ZX ; Priestley, K ; McKenzie, D
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2006
卷号	49 期号:6 页码:1720-1729
关键词	South China Sea Xisha Islands Shidao Station teleseismic receiver function crustal velocity structure
ISSN号	0001-5733
通讯作者	xlqiu@scsio.ac.cn
中文摘要	We installed a temporary earthquake station at Shidao on Xisha Islands of South China Sea to study the seismicity and lithospheric structure of the region, and carried out the observation experiment for more than one year. Although the seismic data in reef and island areas have relatively large background noise, especially during the passage of a tropical cyclone, earthquakes above M-W 6 can still be recorded. In this paper, those teleseismic records with clear P waveforms are chosen to carry out receiver function analysis and modeling. A simple crustal structure model beneath the station is obtained, in which the Moho depth is 28 km. On the top of the upper crust is a 2 km-thick low velocity layer with a shear wave velocity of only 2.3 km/s. The shear wave velocity increases gradually with depth to 3.8 km/s in the lower crust. We compared this model with previous results and discovered that the models of Shidao Station and Qiongzhong Station (QIZ) are the natural extensions of the Xisha Trough section. The crustal structure of Xisha Block consists of thinned continental crust, with a velocity structure that is similar to the normal continental crust of South China Block.
学科主题	Geochemistry & Geophysics
收录类别	SCI
原文出处	SCIENCE CHINA PRESS
WOS记录号	WOS:000242388600019
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/4388]
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	Qiu, XL,Zeng, GP,Xu, Y,et al. The crustal structure beneath the Shidao station on Xisha Islands of South China Sea[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(6):1720-1729.
APA	Qiu, XL.,Zeng, GP.,Xu, Y.,Hao, TY.,Li, ZX.,...&McKenzie, D.(2006).The crustal structure beneath the Shidao station on Xisha Islands of South China Sea.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(6),1720-1729.
MLA	Qiu, XL,et al."The crustal structure beneath the Shidao station on Xisha Islands of South China Sea".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.6(2006):1720-1729.