气候变化领域集成服务门户(CCPortal): A dislocation model of elastic block for aseismic crustal deformation in Taiwan

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DOI	10.3969/j.issn.0001-5733.2009.05.011
	A dislocation model of elastic block for aseismic crustal deformation in Taiwan
	Hao Jin-Lai; Wang Wei-Min; Wang Jian; Yao Zhen-Xing
通讯作者	Hao, JL (通讯作者)
发表日期	2009
ISSN	0001-5733
起始页码	1223
结束页码	1232
卷号	52 期号:5
英文摘要	In previous dislocation model, the aseismic crustal deformation is regarded as the sum of the rigid block motion and the effect of the locked fault. We modify the dislocation model in two aspects. Firstly, the block motion is assumed to be the sum of rotation and linear strain rather than the rigid motion. Secondly, the elastic layered-earth model rather than the homogenous half-space model is applied to calculate the effect of the locked part. The 1990 similar to 1995 Global Position System (GPS) velocity data of the Taiwan area are used in our dislocation model. Our simulation shows that in eastern Coastal Range, the velocity decreases northward rapidly from Chimei Fault, which may result from the high crustal compressive rate of about 30 turn . a(-1) at Chimei Fault. In western Taiwan, the most strongly locked faults appear in the southern Coastal Plain where many disaster earthquakes occur frequently. The calculated strain and rotation rates consist with previous results in most areas. The strain rate field reveals the nearly NW-SE compression in most parts of Taiwan with a fan-shaped distribution. The rotation rate field reveals anticlockwise rotation in eastern and southern Taiwan while clockwise rotation in western and northern Taiwan, generally.
关键词	VELOCITY STRUCTURE TENSILE FAULTS HALF-SPACE SW TAIWAN FIELD STRAIN PLATE AREA EXHUMATION COLLISION
英文关键词	Taiwan; Crustal deformation; Elastic block; Dislocation model
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000266542700011
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/257657
推荐引用方式 GB/T 7714	Hao Jin-Lai,Wang Wei-Min,Wang Jian,et al. A dislocation model of elastic block for aseismic crustal deformation in Taiwan[J]. 中国科学院青藏高原研究所,2009,52(5).
APA	Hao Jin-Lai,Wang Wei-Min,Wang Jian,&Yao Zhen-Xing.(2009).A dislocation model of elastic block for aseismic crustal deformation in Taiwan.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(5).
MLA	Hao Jin-Lai,et al."A dislocation model of elastic block for aseismic crustal deformation in Taiwan".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.5(2009).