气候变化领域集成服务门户(CCPortal): Modelling of current crustal tectonic deformation in the Chinese Tianshan orogenic belt constrained by GPS observations

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DOI	10.1088/1742-2132/7/4/010
	Modelling of current crustal tectonic deformation in the Chinese Tianshan orogenic belt constrained by GPS observations
	Lei, Xianquan; Chen, Yunping; Zhao, Junmeng; Zhao, Jiongyang
通讯作者	Chen, YP (通讯作者)
发表日期	2010
ISSN	1742-2132
EISSN	1742-2140
起始页码	431
结束页码	442
卷号	7 期号:4
英文摘要	It is important to discover the deformation characteristics of the Tianshan mountain range for a better understanding of the geodynamics of the Tianshan orogenic belt. Constrained by the GPS-derived velocity vectors of crustal movement, the current velocity field, stress field and strain rate in the Tianshan mountains have been retrieved from a three-dimensional numerical model presented in this paper by using the finite-element code ANSYS, on the basis of geological structures, tectonic regimes, active fault belts and seismic velocity structures of the crust and upper mantle. The results suggest that: (1) the general direction of crustal movement is NNE, and yet gradually turns to NE from west to east; (2) the regional stress field is characterized by near N-S tectonic compression, resulting in crustal shortening in the near N-S direction as well; and (3) the shortening strain rate is similar to 10(-8) a(-1) and decreases gradually from west to east. Our results support the opinion that the crustal deformation of the Tianshan mountain range is controlled by the clockwise rotation of the Tarim basin.
关键词	TIEN-SHAN TARIM BASIN CENOZOIC TECTONICS VELOCITY STRUCTURE MANTLE ASIA BENEATH ZONE CONVECTION MOUNTAINS
英文关键词	geodynamics; crustal movement; tectonic deformation; Tianshan orogenic belt; FEM simulation; GPS
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000283791300010
来源期刊	JOURNAL OF GEOPHYSICS AND ENGINEERING
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/257747
推荐引用方式 GB/T 7714	Lei, Xianquan,Chen, Yunping,Zhao, Junmeng,et al. Modelling of current crustal tectonic deformation in the Chinese Tianshan orogenic belt constrained by GPS observations[J]. 中国科学院青藏高原研究所,2010,7(4).
APA	Lei, Xianquan,Chen, Yunping,Zhao, Junmeng,&Zhao, Jiongyang.(2010).Modelling of current crustal tectonic deformation in the Chinese Tianshan orogenic belt constrained by GPS observations.JOURNAL OF GEOPHYSICS AND ENGINEERING,7(4).
MLA	Lei, Xianquan,et al."Modelling of current crustal tectonic deformation in the Chinese Tianshan orogenic belt constrained by GPS observations".JOURNAL OF GEOPHYSICS AND ENGINEERING 7.4(2010).