气候变化领域集成服务门户(CCPortal): Uniform slip rates of the Altyn Tagh and the Kunlun faults likely reflect lateral variation of frictional strength of the faults

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DOI	10.1111/ter.12467
	Uniform slip rates of the Altyn Tagh and the Kunlun faults likely reflect lateral variation of frictional strength of the faults
	Zhu, Xiaojie; He, Jiankun; Xiao, Jie; Wang, Xinguo
通讯作者	He, JK (通讯作者)
发表日期	2020
ISSN	0954-4879
EISSN	1365-3121
起始页码	381
结束页码	389
卷号	32 期号:5
英文摘要	The slip rate predicted from geodetic and geomorphological measurements is quite uniform on similar to 800-1,000 km length of the Altyn Tagh and the Kunlun faults. GPS velocity field documents that tectonic loading on the two active faults changes greatly along their strikes. To explore the mechanical relationship between far-field tectonic loading and fault slip-rate accumulation, we built a 3D viscoelastic finite-element model with fault motion governed by frictional strength of contact interfaces. Based on numerical experiments, it is found that the observed uniform slip rate could reflect lateral variation of frictional strength along fault strike. Variation of predicted frictional coefficient ranges from similar to 0.13 to similar to 0.02, verifying that the two active faults must be weak for their mechanical strength. In addition, the good fitness between the relatively weak segment of faults and the location of strong earthquakes suggests that seismic activity along the two faults could be related to their frictional strength.
关键词	GPS VELOCITY-FIELD TIBETAN PLATEAU ACTIVE DEFORMATION 1997 MANYI EARTHQUAKE KINEMATICS TECTONICS RUPTURE MODEL STRESS
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000535740200001
来源期刊	TERRA NOVA
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/259755
推荐引用方式 GB/T 7714	Zhu, Xiaojie,He, Jiankun,Xiao, Jie,et al. Uniform slip rates of the Altyn Tagh and the Kunlun faults likely reflect lateral variation of frictional strength of the faults[J]. 中国科学院青藏高原研究所,2020,32(5).
APA	Zhu, Xiaojie,He, Jiankun,Xiao, Jie,&Wang, Xinguo.(2020).Uniform slip rates of the Altyn Tagh and the Kunlun faults likely reflect lateral variation of frictional strength of the faults.TERRA NOVA,32(5).
MLA	Zhu, Xiaojie,et al."Uniform slip rates of the Altyn Tagh and the Kunlun faults likely reflect lateral variation of frictional strength of the faults".TERRA NOVA 32.5(2020).