气候变化领域集成服务门户(CCPortal): Lower friction of the Xianshuihe-Xiaojiang fault system and its effect on active deformation around the south-eastern Tibetan margin

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DOI	10.1111/j.1365-3121.2007.00735.x
	Lower friction of the Xianshuihe-Xiaojiang fault system and its effect on active deformation around the south-eastern Tibetan margin
	He, Jiankun; Lu, Shuangjiang
发表日期	2007
ISSN	0954-4879
EISSN	1365-3121
起始页码	204
结束页码	210
卷号	19 期号:3
英文摘要	We use three-dimensional mechanical modelling with fault as Coulomb-type frictional surface to explore the active deformation of the Xianshuihe-Xiaojiang fault system in south-eastern Tibet. Crustal rheology is simplified as an elastoplastic upper crust and a viscoelastic lower crust. Far-field GPS velocities and Quaternary fault slip rates are used to constrain the model results. Numerical experiments show that effective fault friction lower than similar to 0.1-0.08 leads to a high slip rate that fits well with geological estimates of the slip rate on the fault system. Associating with the modelled fault slip rate, strain in the surrounding crust distributes broadly, and is partitioned into strike-slip and thrust senses. This means that in the Indian-Eurasia convergence, accommodation of the large fraction of sinistral motion on the fault system is achieved mainly due to its lower fault friction. This in turn affects crustal deformation around the south-eastern Tibetan margin, resulting in negligible compression across the Longmen Shan.
关键词	LOWER-CRUSTAL FLOW EURASIA COLLISION ZONE SAN-ANDREAS FAULT YUNNAN PROVINCE SURFACE UPLIFT CHINA TECTONICS ASIA PLATEAU CALIFORNIA
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000246796500006
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/257463
推荐引用方式 GB/T 7714	He, Jiankun,Lu, Shuangjiang. Lower friction of the Xianshuihe-Xiaojiang fault system and its effect on active deformation around the south-eastern Tibetan margin[J]. 中国科学院青藏高原研究所,2007,19(3).
APA	He, Jiankun,&Lu, Shuangjiang.(2007).Lower friction of the Xianshuihe-Xiaojiang fault system and its effect on active deformation around the south-eastern Tibetan margin.TERRA NOVA,19(3).
MLA	He, Jiankun,et al."Lower friction of the Xianshuihe-Xiaojiang fault system and its effect on active deformation around the south-eastern Tibetan margin".TERRA NOVA 19.3(2007).