IMHE OpenIR  > 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
Corresponding AuthorLI De-wen
2017-07
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:7Pages:1445-1453
Subtype期刊论文
AbstractThe 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.
KeywordHeqing-eryuan Fault Zone Paleoearthquake Holocene Activity Sinistral Strike-slip Heqing Basin
DOI10.1007/s11629-016-3987-2
Indexed BySCI
Language英语
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18936
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.7
Recommended Citation
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.
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