A continuous 13.3-ka record of seismogenic dust events in lacustrine sediments in the eastern Tibetan Plateau

doi:10.1038/s41598-017-16027-8

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	A continuous 13.3-ka record of seismogenic dust events in lacustrine sediments in the eastern Tibetan Plateau
	Nie, Gaozhong 1; Jiang, Hanchao 2; Zhong, Ning 2,4; Li, Yanhao 2,4; Ma, Xiaolin 3; Xu, Hongyan 2,4; Shi, Wei 2,4; Zhang, Siqi 2,5
刊名	SCIENTIFIC REPORTS
	2017-11-16
卷号	7 期号:1
DOI	10.1038/s41598-017-16027-8
文献子类	Article
英文摘要	Lacustrine sediments on the eastern Tibetan Plateau (TP) contain a wealth of information on local and regional tectonic activity. High-resolution grain-size and magnetic susceptibility measurements were conducted on the 23.4-m-thick Lixian lacustrine sedimentary sequence spanning from 19.3 to 6.0 ka, revealing 70 prehistoric seismic events on the eastern TP. The seismic events caused intermittent increases in source materials that endowed the samples of an individual event layer with a gradual fining trend along the C = M line on a C (one percentile)-M (median diameter) plot. Grain-size distribution and end-member modeling imply that dust particles of < 20 mu m in size were transported primarily by long-term suspension, while medium to coarse silt and sand were transported primarily by short-term suspension, such as aeolian transport constrained by local topography. Provenance analysis based on U-Pb zircon ages indicates that dust particles generated by earthquakes at Lixian had no effect on dust deposition at Xinmocun and Diaolin, and vice versa. These prehistoric seismic events, revealed by variations in grain size and magnetic susceptibility, thus provide invaluable information on the long-term behavior of local seismic activity.
WOS关键词	CHINESE LOESS PLATEAU ; DEFORMATION STRUCTURES ; WENCHUAN EARTHQUAKE ; PARTICLE-SIZE ; TIME-SERIES ; SEISMITES ; PROVENANCE ; SIGNATURE ; REVERSE ; BALANCE
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000415282900001
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5392]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China 2.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 5.China Univ Geosci, Coll Geosci & Resources, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Nie, Gaozhong,Jiang, Hanchao,Zhong, Ning,et al. A continuous 13.3-ka record of seismogenic dust events in lacustrine sediments in the eastern Tibetan Plateau[J]. SCIENTIFIC REPORTS,2017,7(1).
APA	Nie, Gaozhong.,Jiang, Hanchao.,Zhong, Ning.,Li, Yanhao.,Ma, Xiaolin.,...&Zhang, Siqi.(2017).A continuous 13.3-ka record of seismogenic dust events in lacustrine sediments in the eastern Tibetan Plateau.SCIENTIFIC REPORTS,7(1).
MLA	Nie, Gaozhong,et al."A continuous 13.3-ka record of seismogenic dust events in lacustrine sediments in the eastern Tibetan Plateau".SCIENTIFIC REPORTS 7.1(2017).