Crust-mantle coupling in North China: Preliminary analysis from seismic anisotropy

doi:10.1007/s11434-010-4135-y

	Crust-mantle coupling in North China: Preliminary analysis from seismic anisotropy
	Gao Yuan 1; Wu Jing 2; Yi GuiXi 3; Shi YuTao 1
刊名	CHINESE SCIENCE BULLETIN
	2010-11-01
卷号	55 期号:31 页码:3599-3605
关键词	Seismic Anisotropy Crust-mantle Coupling Polarization Direction Of Fast Shear-wave Shear-wave Splitting Crustal Principal Compressive Stress North China
ISSN号	1001-6538
DOI	10.1007/s11434-010-4135-y
文献子类	Article
英文摘要	Data from the CASN (Capital Area Seismograph Network), NSNC (National Seismograph Network of China), and IRIS (Incorporated Research Institutions for Seismology) are compared with data from a temporary North China Seismic Array to obtain the background orientation of the horizontal crustal principal compressive stress at NE 95.1A degrees A +/- 15.4A degrees in North China. Data are corrected for disturbances of faults and irregular tectonics, and are used to constrain the fast SKS polarization at NE 110.2A degrees A +/- 15.8A degrees in North China. Individual station analyses suggests that there is consistently more than 10A degrees difference between the polarizations of fast shear-wave in the crust and those of fast SKS phases. Azimuthally anisotropic phase velocities of Rayleigh waves at different periods also indicate an orientation change for fast velocity with depth. It suggests the crust-mantle coupling in North China follows neither the simple decoupling model nor the strong coupling model. Instead, it is possibly some inhomogeneous combination of two models or some gradual-change model of physical characteristics. This study shows that anisotropy in the crust and mantle could be multiply characterized more correctly and crust-mantle coupling could be analyzed further, if increasing near-field shear-wave splitting data that indicate crustal anisotropy, combined with the azimuthal anisotropy of Rayleigh waves, besides the result of SKS splitting travelling through lithosphere and surface GPS measurements.
WOS关键词	ADJACENT REGIONS ; EASTERN CHINA ; AZIMUTHAL ANISOTROPY ; TEMPORAL VARIATIONS ; SMALL EARTHQUAKES ; PLATE MOTIONS ; CAPITAL AREA ; STRESS-FIELD ; WAVE ; VELOCITY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000284111500015
资助机构	National Natural Science Foundation of China(40674021) ; National Natural Science Foundation of China(40674021) ; Institute of Earthquake Science, China Earthquake Administration ; Institute of Earthquake Science, China Earthquake Administration ; National Natural Science Foundation of China(40674021) ; National Natural Science Foundation of China(40674021) ; Institute of Earthquake Science, China Earthquake Administration ; Institute of Earthquake Science, China Earthquake Administration ; National Natural Science Foundation of China(40674021) ; National Natural Science Foundation of China(40674021) ; Institute of Earthquake Science, China Earthquake Administration ; Institute of Earthquake Science, China Earthquake Administration ; National Natural Science Foundation of China(40674021) ; National Natural Science Foundation of China(40674021) ; Institute of Earthquake Science, China Earthquake Administration ; Institute of Earthquake Science, China Earthquake Administration
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73448]
专题	中国科学院地质与地球物理研究所
通讯作者	Gao Yuan
作者单位	1.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Earthquake Adm Sichuan Prov, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Gao Yuan,Wu Jing,Yi GuiXi,et al. Crust-mantle coupling in North China: Preliminary analysis from seismic anisotropy[J]. CHINESE SCIENCE BULLETIN,2010,55(31):3599-3605.
APA	Gao Yuan,Wu Jing,Yi GuiXi,&Shi YuTao.(2010).Crust-mantle coupling in North China: Preliminary analysis from seismic anisotropy.CHINESE SCIENCE BULLETIN,55(31),3599-3605.
MLA	Gao Yuan,et al."Crust-mantle coupling in North China: Preliminary analysis from seismic anisotropy".CHINESE SCIENCE BULLETIN 55.31(2010):3599-3605.