Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions

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

	Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions
	Yang, XQ ; Shi, XB ; Xu, HH
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2012
卷号	55 期号:7 页码:2307-2318
关键词	Taiwan Strait Tectonic stress field Numerical modeling GPS velocity field Focal mechanism solution (FMS)
ISSN号	0001-5733
通讯作者	yzy2081@scsio.ac.cn
中文摘要	This paper presents the current tectonic stress field in the Taiwan Strait and its adjacent regions, which was calculated with a 3D finite element model based on the elastic theory. When doing so, we divided the study area into several sub-regions which had same thickness but were assigned different elastic parameters, and the model was constrained by GPS observed velocity data and the directions of principal stress axes deduced from focal mechanism solutions (FMS). The results show that: (1) The direction of the maximum principal stress is about NW-SE in the centers of the Taiwan Strait and Taiwan mountain belt, and experiences clockwise rotation in the northeastern part, and anticlockwise rotation in the southern part, respectively. (2) The horizontal displacement field can be divided into two areas by the Latitude 23 degrees N and it is much stronger in the southern area than in the northern one. In the northern area, the displacement field shows clockwise rotation, while it shows anticlockwise rotation in the southern area. (3) The Dongsha-Penghu-Peikang Basement High becomes a barrier because it is stronger than surrounding regions. As a result, there are two tectonic escapes in the north and the south of the High. And the deformation is much stronger in the southeastern part of the High than its northwestern part.
学科主题	Geochemistry & Geophysics
语种	中文
WOS记录号	WOS:000307155400016
公开日期	2013-08-28
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10329]
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	Yang, XQ,Shi, XB,Xu, HH. Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(7):2307-2318.
APA	Yang, XQ,Shi, XB,&Xu, HH.(2012).Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(7),2307-2318.
MLA	Yang, XQ,et al."Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.7(2012):2307-2318.