Holocene activity evidence on the southeast boundary fault of Heqing basin, middle segment of Heqing-Eryuan fault zone, West Yunnan Province, China

doi:10.1007/s11629-016-3987-2

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.7

	Holocene activity evidence on the southeast boundary fault of Heqing basin, middle segment of Heqing-Eryuan fault zone, West Yunnan Province, China
	SUN Chang-bin; LI De-wen; SHEN Xiao-ming; KANG Yan-rui; LIU Rui; ZHANG Ya-jiao
刊名	Journal of Mountain Science
	2017-07
卷号	14 期号:7 页码:1445-1453
关键词	Heqing-eryuan Fault Zone Paleoearthquake Holocene Activity Sinistral Strike-slip Heqing Basin
ISSN号	1672-6316
DOI	10.1007/s11629-016-3987-2
通讯作者	LI De-wen
文献子类	期刊论文
英文摘要	The Heqing-Eryuan fault is an important part of the active fault system in the Northwestern Yunnan Province, China. Thus, the study on the nature, characteristics and activity history of this fault can provide not only the basis for seismic safety and engineering evaluation, but also the important information for the characteristics, history and patterns of the structural deformation of the southeastern margin of the Tibetan Plateau. Trench and faulted landforms investigations could provide effective paleoseismic methods to obtain the recent parameters of active faults. Using these methods, this study makes some breakthroughs on the recent activity of southeast boundary fault of the Heqing basin, middle segment of Heqing-Eryuan fault zone. Results indicate that the average vertical slip rate and left-lateral slip rate of the segment are about 0.28 mm/a and 1.80 mm/a respectively since the Late Pleistocene. The trench near the Beixi Village at the southeast boundary fault of the Heqing basin reveals that there have been at least three paleoearthquake events during the Holocene (~8 ka BP). The vertical displacement and sinistral strike-slip distance of a single paleoearthquake are ~20 cm and ~1.2 m, respectively. The estimated paleoearthquake magnitudes with Ms7.0, and the recurrence interval at 2-5 ka, as well as the latest activity time during 800-290 cal yr BP, are of great significance for preventing and mitigating regional earthquake disasters.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18936]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.7
推荐引用方式 GB/T 7714	SUN Chang-bin,LI De-wen,SHEN Xiao-ming,et al. Holocene activity evidence on the southeast boundary fault of Heqing basin, middle segment of Heqing-Eryuan fault zone, West Yunnan Province, China[J]. Journal of Mountain Science,2017,14(7):1445-1453.
APA	SUN Chang-bin,LI De-wen,SHEN Xiao-ming,KANG Yan-rui,LIU Rui,&ZHANG Ya-jiao.(2017).Holocene activity evidence on the southeast boundary fault of Heqing basin, middle segment of Heqing-Eryuan fault zone, West Yunnan Province, China.Journal of Mountain Science,14(7),1445-1453.
MLA	SUN Chang-bin,et al."Holocene activity evidence on the southeast boundary fault of Heqing basin, middle segment of Heqing-Eryuan fault zone, West Yunnan Province, China".Journal of Mountain Science 14.7(2017):1445-1453.