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	Crustal S-wave Q estimated from M-L amplitude I: attenuation in different tectonic regions of China
	Wang Su-Yun; Pei Shun-Ping; Xu Zhong-Huai; Zhang Guo-Min; Yu Yan-Xiang; Pan Hua
发表日期	2007
ISSN	0001-5733
起始页码	1740
结束页码	1747
卷号	50 期号:6 页码:468-488
英文摘要	S wave maximum amplitude and period data reported in the Annual Bulletin of Chinese Earthquakes are used to study the S wave attenuation in crust and the regional variation of material quality factor Q(0) in China. We obtained an average Q(0) (Q at 1 Hz) value of 367 for the entire area of China. The highest values of regional Q0 we found are 460 for the South China platform, 442 for the Tarim basin and 419 for the Ordos plateau, while we obtained a lower regional Q(0) of 294 for North China, and a similarly low value of 295 for the Sichuan-Yunnan region. Our results indicate that for tectonically stable cratonic regions, such as the Tarim basin I Ordos plateau and South China platform, Q(0) is usually high, in contrast, for tectonically active regions, such as the deforming Sichuan-Yunnan shear zone that lies on the eastern margin of the Tibetan plateau, and the extensional North China basin, the Q(0) is generally low. This regional Q(0) variation closely parallels the observed Pn velocity patterns: in regions of fast Pn velocity the S wave Q(0) is high, while the regions having slow Pn velocity often exhibit a low Q(0).
关键词	CODA ATTENUATION NORTH CHINA TOMOGRAPHY BENEATH MANTLE
英文关键词	attenuation; crust; S-wave; Q(0) value
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000251343600014
来源期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/315
推荐引用方式 GB/T 7714	Wang Su-Yun,Pei Shun-Ping,Xu Zhong-Huai,et al. Crustal S-wave Q estimated from M-L amplitude I: attenuation in different tectonic regions of China[J]. 中国科学院青藏高原研究所,2007,50(6):468-488.
APA	Wang Su-Yun,Pei Shun-Ping,Xu Zhong-Huai,Zhang Guo-Min,Yu Yan-Xiang,&Pan Hua.(2007).Crustal S-wave Q estimated from M-L amplitude I: attenuation in different tectonic regions of China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(6),468-488.
MLA	Wang Su-Yun,et al."Crustal S-wave Q estimated from M-L amplitude I: attenuation in different tectonic regions of China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.6(2007):468-488.