气候变化领域集成服务门户(CCPortal): Holocene Earthquake Cycles of an Active Tectonic Block Boun- dary Fault Zone: A Case Study in the Qilian-Haiyuan Fault Zone, Northeastern Tibet Plateau

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DOI	10.2113/2023/7919174
	Holocene Earthquake Cycles of an Active Tectonic Block Boun- dary Fault Zone: A Case Study in the Qilian-Haiyuan Fault Zone, Northeastern Tibet Plateau
	Liang, Shumin; Zheng, Wenjun; Zhang, Dongli; Peng, Hui; Sun, Xin; Wei, Shiqi
发表日期	2023
ISSN	1941-8264
EISSN	1947-4253
卷号	2023 期号:1
英文摘要	Fault zones along active tectonic block boundaries are a significant source of devastating continental earthquakes. Strong earthquakes produce disruptions of sediment and induce characteristic sediments near the fault, which serve as valuable sedimentary evidence for identifying and dating of paleoearthquakes. In this study, we aimed to reconstruct the earthquake history of the Qilian-Haiyuan fault zone in the northeastern Tibetan Plateau during the Holocene. We reanalyzed forty-four trenches and used the sedimentary sequences, event indicators, and age constraints to determine the earthquake history. Our analysis revealed the paleoearthquakes of 6 subsidiary faults of the Qilian-Haiyuan fault zone with accurate event ages and rupture extents. Based on the spatial and temporal distributions of strong earthquakes since 10 ka, we identified five earthquake clusters around the central-eastern Qilian-Haiyuan fault zone including seven rupture cascades where the earthquakes migrated gradually from east to west. The existing seismic gap reveals that the latest migration may not yet be complete and suggests a high probability of M & GE; 7 earthquakes occurring on the Jinqianghe fault, Maomaoshan fault, and the central part of the Lenglongling faults. We concluded that, in order to better understand earthquake cycles and seismic hazards, it is important to consider a fault zone as a whole, including multiple faults and their interaction on the earthquake triggering between nearby faults.
英文关键词	SAN-ANDREAS FAULT; NORTH-ANATOLIAN FAULT; HUI AUTONOMOUS REGION; ALTYN TAGH FAULT; RUPTURE BEHAVIOR; STRIKE-SLIP; GREAT EARTHQUAKES; XIANSHUIHE FAULT; STRESS CHANGES; RECURRENCE
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS记录号	WOS:001070785300001
来源期刊	LITHOSPHERE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283551
作者单位	Sun Yat Sen University; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Ministry of Natural Resources of the People's Republic of China; China Geological Survey; Guangzhou Marine Geological Survey
推荐引用方式 GB/T 7714	Liang, Shumin,Zheng, Wenjun,Zhang, Dongli,et al. Holocene Earthquake Cycles of an Active Tectonic Block Boun- dary Fault Zone: A Case Study in the Qilian-Haiyuan Fault Zone, Northeastern Tibet Plateau[J],2023,2023(1).
APA	Liang, Shumin,Zheng, Wenjun,Zhang, Dongli,Peng, Hui,Sun, Xin,&Wei, Shiqi.(2023).Holocene Earthquake Cycles of an Active Tectonic Block Boun- dary Fault Zone: A Case Study in the Qilian-Haiyuan Fault Zone, Northeastern Tibet Plateau.LITHOSPHERE,2023(1).
MLA	Liang, Shumin,et al."Holocene Earthquake Cycles of an Active Tectonic Block Boun- dary Fault Zone: A Case Study in the Qilian-Haiyuan Fault Zone, Northeastern Tibet Plateau".LITHOSPHERE 2023.1(2023).