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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Timing and seismic origin of Nixu rock avalanche in southern Tibet and its implications on Nimu active fault

文献类型：期刊论文

作者Zeng, Qingli2,3; Yuan, Guangxiang1; McSaveney, Mauri6; Ma, Fengshan5; Wei, Rongqiang2; Liao, Liye1; Du, Hua4
刊名ENGINEERING GEOLOGY
出版日期2020-04-01
卷号268页码:14
ISSN号0013-7952
关键词Earthquake-induced landslides Landslide dating Seismic liquefaction Seismic slope response Yadong-Gulu rift
DOI10.1016/j.enggeo.2020.105522
英文摘要In tectonically active mountain areas, the identification, dating and determination of origin of large landslides are of special importance in recognizing the seismicity and earthquake magnitude of regional faults, reconstructing the prehistoric landscape evolution and estimating the seismic hazards. Based on field survey, high-resolution satellite image interpretation and C-14 dating of substrate, this paper studied the large, long-runout Nixu rock avalanche (the NXRA) in the Angang graben of the southern Tibetan Plateau. The study revealed that: (1) the deep-seated Nixu rock avalanche straddles the Nimu active normal fault and spreads onto the Angang basin with a deposit volume of 47 Mm(3) and a travelling distance of 4960 m. (2) Humus samples immediately under the deposit of rock avalanche along the natural river-erosion section suggest a C-14 age of 820 +/- 30 BP (1220 +/- 30 CaIAD) for the NXRA event. The age well matches the 1264 CE Chubushi earthquake recorded in Tibetan documents. (3) 23 adjacent landslides have been recognized with co-seismic distribution features, such as clustering and distance effect, ridge-end amplification effect and slope aspect effect. Sand liquefaction and peat deformation were discovered in the substrate beneath and at a distance of -300 m away from the avalanche deposit. (4) This information indicate that the NXRA was triggered most likely by the 1264 Chubushi earthquake with a magnitude of Mw 7.0-7.2 estimated by empirical equations of Keefer (1994) and Wells & Coppersmith (1994). It is suggested that the Nimu fault of the Yadong-Gulu rift may be more hazardous than the northern and southern part due to its high susceptibility of large co-seismic landslides.
WOS关键词EARTHQUAKE-INDUCED LANDSLIDES ; SLOPE-FAILURE ; VALLEY ; HIMALAYA ; AGE ; MOUNTAINS ; HAZARDS ; EROSION ; OROGEN ; RIVER
资助项目National Natural Scientific Foundation of China[41772382] ; National Natural Scientific Foundation of China-Henan Joint Fund[U1704243] ; Second Tibetan Plateau Scientific Exploration Research Program[2019QZKK0904] ; International Cooperation Program of Chinese Academy of Sciences[131551KYSB20180042] ; National Key Research and Development Program of China[2018YFC1505301] ; China Scholarship Council
WOS研究方向Engineering ; Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000525398800018
资助机构National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China-Henan Joint Fund ; National Natural Scientific Foundation of China-Henan Joint Fund ; Second Tibetan Plateau Scientific Exploration Research Program ; Second Tibetan Plateau Scientific Exploration Research Program ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China-Henan Joint Fund ; National Natural Scientific Foundation of China-Henan Joint Fund ; Second Tibetan Plateau Scientific Exploration Research Program ; Second Tibetan Plateau Scientific Exploration Research Program ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China-Henan Joint Fund ; National Natural Scientific Foundation of China-Henan Joint Fund ; Second Tibetan Plateau Scientific Exploration Research Program ; Second Tibetan Plateau Scientific Exploration Research Program ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China ; National Natural Scientific Foundation of China-Henan Joint Fund ; National Natural Scientific Foundation of China-Henan Joint Fund ; Second Tibetan Plateau Scientific Exploration Research Program ; Second Tibetan Plateau Scientific Exploration Research Program ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/95568]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Zeng, Qingli
作者单位1.North China Univ Water Resources & Elect Power, Zhengzhou 450045, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
4.Xian Accelerator Mass Spectrometry Ctr, Xian 710061, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
6.GNS Sci, POB 30368, Lower Hutt 9040, New Zealand
推荐引用方式
GB/T 7714		 Zeng, Qingli,Yuan, Guangxiang,McSaveney, Mauri,et al. Timing and seismic origin of Nixu rock avalanche in southern Tibet and its implications on Nimu active fault[J]. ENGINEERING GEOLOGY,2020,268:14.
APA Zeng, Qingli.,Yuan, Guangxiang.,McSaveney, Mauri.,Ma, Fengshan.,Wei, Rongqiang.,...&Du, Hua.(2020).Timing and seismic origin of Nixu rock avalanche in southern Tibet and its implications on Nimu active fault.ENGINEERING GEOLOGY,268,14.
MLA Zeng, Qingli,et al."Timing and seismic origin of Nixu rock avalanche in southern Tibet and its implications on Nimu active fault".ENGINEERING GEOLOGY 268(2020):14.

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来源：地质与地球物理研究所

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