气候变化领域集成服务门户(CCPortal): The updated crustal attenuation in North China using M-L amplitude tomography

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DOI	10.1007/s11589-010-0753-3
	The updated crustal attenuation in North China using M-L amplitude tomography
	Pei, Shunping; Chen, Yongshun
通讯作者	Pei, SP (通讯作者)
发表日期	2010
ISSN	1674-4519
EISSN	1867-8777
起始页码	541
结束页码	548
卷号	23 期号:6
英文摘要	We have updated the lateral variations of the quality factor Q(0) (Q at 1 Hz) beneath the crust of North China using ML amplitude tomography with near three times data. The data were selected from the Annual Bulletin of Chinese Earthquakes (ABCE) in 1985-2009, including 26 283 M-L amplitude readings from 4 204 events recorded by 38 stations. The result is similar with previous research but has higher resolution. Estimated Q(0) values are consistent with tectonic and topographic structure in North China. Q(0) is low in the active tectonic regions having many faults, such as Bohai bay, North China basin, the Shanxi and Yinchuan grabens, while it is high in the stable Ordos craton. Q(0) values are low in several topographically low-lying areas, such as the North China, Taikang-Hefei, and Subei-Huanghai Sea basins, whereas it is high in mountainous and uplift regions exhibiting surface expressions of crystalline basement rocks: the Yinshan, Yanshan, Taihang, Qinling and Dabie mountains, Luxi and Jiaoliao uplifts. Quality factor estimates are also consistent with Pn and Sn velocity patterns. High velocity values in general correspond with high Q(0) and vice versa. This coincides with a common temperature influence in the crust and uppermost mantle.
关键词	S-WAVE ATTENUATION VELOCITY STRUCTURE UPPERMOST MANTLE SURROUNDING REGIONS CODA ATTENUATION SICHUAN-YUNNAN CONTINENT INVERSION SPECTRA EURASIA
英文关键词	amplitude tomography; Q value; North China
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000210043900003
来源期刊	EARTHQUAKE SCIENCE
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/257742
推荐引用方式 GB/T 7714	Pei, Shunping,Chen, Yongshun. The updated crustal attenuation in North China using M-L amplitude tomography[J]. 中国科学院青藏高原研究所,2010,23(6).
APA	Pei, Shunping,&Chen, Yongshun.(2010).The updated crustal attenuation in North China using M-L amplitude tomography.EARTHQUAKE SCIENCE,23(6).
MLA	Pei, Shunping,et al."The updated crustal attenuation in North China using M-L amplitude tomography".EARTHQUAKE SCIENCE 23.6(2010).