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  4. 中国科学院页岩气与地质工程重点实验室
Be-10 dating and seismic origin of Luanshibao rock avalanche in SE Tibetan Plateau and implications on Litang active fault

文献类型：期刊论文

作者Zeng, Qingli2; Yuan, Guangxiang3,4; Davies, Timothy1; Xu, Bing5; Wei, Rongqiang3; Xue, Xingyu3; Zhang, Luqing5
刊名LANDSLIDES
出版日期2019-12-23
页码14
ISSN号1612-510X
关键词Earthquake-induced landslide Be-10 exposure age Landslide dating Maoya basin Litang active fault
DOI10.1007/s10346-019-01319-z
英文摘要Moderate-large earthquakes usually trigger a large number of landslides. The prehistoric large landslides can be analyzed to determine the probability of its seismic origin, and further recognized as an indicator of fault activity and earthquake intensity. Based on field investigation, high-resolution satellite image interpretation and cosmogenic exposure dating of landslide deposit, the paper presents a large, long-runout Luanshibao rock avalanche (the LSB rock avalanche), southeast Tibet. The study reveals that (1) the LSB rock avalanche straddles the Litang active strike-slip fault and deposits on the open-flat Quaternary Maoya basin, with a deposit volume of 67 Mm(3) and an apparent coefficient of friction of 0.22. (2) Totally, 8 granite blocks from the proximal to the medial part of deposit dated by the Terrestrial Cosmogenic Nuclide method suggests an average Be-10 exposure age of 3510 +/- 346 a B.P. for the LSB rock avalanche; (3) the spatial-temporal intercutting relationships among the LSB rock avalanche, Quaternary sediments, and the Litang active fault suggest five strong paleoseismic events in the Maoya basin, which is temporally in accordance to the result defined by paleoearthquake-trench research; (4) the corresponding maximum magnitude could reach M-W 7.1 +/- 0.1 by the empirical equations between landslide volume and earthquake magnitude. It suggests that the Maoya section of Litang fault is probably more dangerous than other sections due to the high density of large co-seismic landslides, which could present useful reference for the alignment selection of future Sichuan-Tibet railway.
WOS关键词GOBI-ALTAY ; LANDSLIDES ; EARTHQUAKE ; MAGNITUDE ; HIMALAYA ; EROSION ; GEOMORPHOLOGY ; MOUNTAINS ; MOBILITY ; FAILURE
资助项目National Natural Science Foundation of China[41772382] ; National Natural Science Foundation of China[U1704243]
WOS研究方向Engineering ; Geology
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000504125700001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95857]  
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.Univ Canterbury, Dept Geosci, Christchurch 8041, New Zealand
2.Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.North China Univ Water Resources & Elect Power, Coll Resources & Environm, Zhengzhou 450045, Henan, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Qingli,Yuan, Guangxiang,Davies, Timothy,et al. Be-10 dating and seismic origin of Luanshibao rock avalanche in SE Tibetan Plateau and implications on Litang active fault[J]. LANDSLIDES,2019:14.
APA Zeng, Qingli.,Yuan, Guangxiang.,Davies, Timothy.,Xu, Bing.,Wei, Rongqiang.,...&Zhang, Luqing.(2019).Be-10 dating and seismic origin of Luanshibao rock avalanche in SE Tibetan Plateau and implications on Litang active fault.LANDSLIDES,14.
MLA Zeng, Qingli,et al."Be-10 dating and seismic origin of Luanshibao rock avalanche in SE Tibetan Plateau and implications on Litang active fault".LANDSLIDES (2019):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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