气候变化领域集成服务门户(CCPortal): Dip-slip rate determined by cosmogenic surface dating on a Holocene scarp of the Daju fault, Yunnan, China

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DOI	10.1016/j.tecto.2010.07.006
	Dip-slip rate determined by cosmogenic surface dating on a Holocene scarp of the Daju fault, Yunnan, China
	Kong, Ping; Fink, David; Na, Chunguang; Xiao, Wei
通讯作者	Kong, P (通讯作者)
发表日期	2010
ISSN	0040-1951
起始页码	106
结束页码	112
卷号	493 期号:1-2
英文摘要	The Daju and Lijiang-Daju fault zones which bound the Yulong Mountains on its northern and eastern perimeters, respectively, are segments of a continuous fault system that bends at Daju. Uplift of the Yulong Mountains, the southernmost glacierized mountain range in Eurasia, resulted from the normal faulting characteristics of the fault system. Using cosmogenic surface exposure dating with (10)Be and (26)Al, we have measured bedrock exposure ages as a function of elevation along an exposed bedrock scarp of the Daju fault 1 Be and (26)Al exposure ages increase monotonically with elevation ranging from 2.6 to 9.6 ka over the 51 m scarp length giving an average dip-slip rate of 7.5 m/ka during the Holocene period and a vertical uplift rate of 5.7 m/ka. The 5.7 m/ka Holocene uplift rate and supporting geomorphic features suggest that the uplift of the Yulong Mountains mainly occurred in the Quaternary. The fast slip rate and seismic quiescence for the recent 2.8 ka call attention to the possible recurrence of large magnitude earthquake events along the fault zone. (C) 2010 Elsevier B.V. All rights reserved.
关键词	EROSION RATES HALF-LIFE BE-10 AL-26 TIBET EARTHQUAKES HISTORY BEDROCK CL-36 AGES
英文关键词	Daju fault; Dip-slip rate; Cosmogenic nuclide; Yulong Mountains; Dali block
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000283700800007
来源期刊	TECTONOPHYSICS
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/257769
推荐引用方式 GB/T 7714	Kong, Ping,Fink, David,Na, Chunguang,et al. Dip-slip rate determined by cosmogenic surface dating on a Holocene scarp of the Daju fault, Yunnan, China[J]. 中国科学院青藏高原研究所,2010,493(1-2).
APA	Kong, Ping,Fink, David,Na, Chunguang,&Xiao, Wei.(2010).Dip-slip rate determined by cosmogenic surface dating on a Holocene scarp of the Daju fault, Yunnan, China.TECTONOPHYSICS,493(1-2).
MLA	Kong, Ping,et al."Dip-slip rate determined by cosmogenic surface dating on a Holocene scarp of the Daju fault, Yunnan, China".TECTONOPHYSICS 493.1-2(2010).