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Dating of multi-period earthquake-triggered rockfalls: a method for revealing paleo-seismic events that occurred along the Yushu fault in the eastern Tibetan Plateau

文献类型：期刊论文

作者Tian, Tingting1,2,3; Wu, Zhonghai2,3; Gai, Hailong4; Zhou, Chunjing2,3; Zhang, Keqi2,3; Ma, Zhibang5
刊名LANDSLIDES
出版日期2021-11-11
页码21
关键词Earthquake-triggered rockfall Yushu fault U-series dating Paleo-earthquake events
ISSN号1612-510X
DOI10.1007/s10346-021-01730-5
英文摘要The quantitative study of earthquake-triggered rockfall debris along seismogenic fault zones has proven to be a valid approach for use in identifying paleo-earthquakes and faulting activities. After the 2010 Yushu earthquake, paleo-rockfall research employed U-series dating of calcareous coats on the rockfall surface, and the results provided chronological evidence of multi-period features relating to earthquake-triggered rockfalls that have occurred along the Yushu fault. In this study, the mechanism involved in forming the calcareous coat on seismic rockfall surfaces was analyzed to further explain the significance of conducting associated U-Th aging analyses. For earthquake-triggered rockfall regions, the U-Th age of the calcareous coat can be used as a proxy age of the rockfall formation, and the timing of the related paleo-earthquake event can be constrained. Based on all current existing age data, an in-depth comparison was made between the U-Th ages of calcareous coats obtained from five seismic rockfall sites and other C-14 dating results obtained from trenches and paleo-seismic landslides relating to paleo-earthquakes. Combined with the results of field investigations, four individual paleo-earthquakes that triggered rockfalls of different scales in historical time were identified. These results imply that multi-period earthquake-triggered rockfalls along the Yushu fault may be valid time indicators of seismic events and reflect the intensity and meizoseismal scale of relevant paleo-earthquake events. This exploratory research on the U-series dating of calcareous coats from earthquake-triggered rockfalls in Yushu can be used as a valuable reference for paleo-earthquake studies in other tectonically active regions.
WOS关键词C-14 AGES ; LANDSLIDES ; CARBONATE ; EVOLUTION ; IDENTIFICATION ; LAHONTAN ; GEOLOGY ; SYSTEM ; TH-230 ; CHINA
资助项目National Natural Science Foundation of China[U2002211] ; China Geology Survey Project[1212011120163] ; China Geology Survey Project[12120114002101] ; China Geology Survey Project[DD20160268] ; Chinese Academy of Geological Sciences Research Funds[JYYWF20183201]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000717403900001
出版者SPRINGER HEIDELBERG
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geology Survey Project ; China Geology Survey Project ; Chinese Academy of Geological Sciences Research Funds ; Chinese Academy of Geological Sciences Research Funds ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geology Survey Project ; China Geology Survey Project ; Chinese Academy of Geological Sciences Research Funds ; Chinese Academy of Geological Sciences Research Funds ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geology Survey Project ; China Geology Survey Project ; Chinese Academy of Geological Sciences Research Funds ; Chinese Academy of Geological Sciences Research Funds ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geology Survey Project ; China Geology Survey Project ; Chinese Academy of Geological Sciences Research Funds ; Chinese Academy of Geological Sciences Research Funds
源URL[http://ir.iggcas.ac.cn/handle/132A11/103823]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Wu, Zhonghai
作者单位1.China Univ Geosci, Coll Earth Sci & Resources, Beijing 100083, Peoples R China
2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
3.Minist Nat Resources, Key Lab Act Tecton & Geol Safety, Beijing 100081, Peoples R China
4.Earthquake Adm Qinghai Prov, Xining 810001, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Tingting,Wu, Zhonghai,Gai, Hailong,et al. Dating of multi-period earthquake-triggered rockfalls: a method for revealing paleo-seismic events that occurred along the Yushu fault in the eastern Tibetan Plateau[J]. LANDSLIDES,2021:21.
APA Tian, Tingting,Wu, Zhonghai,Gai, Hailong,Zhou, Chunjing,Zhang, Keqi,&Ma, Zhibang.(2021).Dating of multi-period earthquake-triggered rockfalls: a method for revealing paleo-seismic events that occurred along the Yushu fault in the eastern Tibetan Plateau.LANDSLIDES,21.
MLA Tian, Tingting,et al."Dating of multi-period earthquake-triggered rockfalls: a method for revealing paleo-seismic events that occurred along the Yushu fault in the eastern Tibetan Plateau".LANDSLIDES (2021):21.

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来源：地质与地球物理研究所

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