學術資源整合系統-相關推薦

 
作者Chung, Ling-Ho;Chen, Yue-Gau;Cao, Zhongquan;Yin, Gongming;Kunz, Alexander;Fan, Anchuan;Wu, Tzu-Shuan;Xu, XiWei
出版日期201504
著作名稱Rapid slip of the Gyaring Co fault in Central Tibet
會議論文集2015 EGU Assembly
會議地點維也那
會議日期20150412
國際性會議Y
主題地質
摘要The Gyaring Co fault (GCF) is one of a series of active en echelon faults of the Karakoram-Jiali fault zone (KJFZ) in the Central Tibetan Plateau. It has been reported as a dextral fault, striking N50°-60°W at a rate of ca. 10 to 20 mm/yr (Armijo et al. 1989). Another en echelon fault, Beng Co fault (BCF), was located on the 1951 M8 event also implies the possibility of earthquake hazard at GCF. By interpreting high resolution satellite imageries, we are able to remap ~140 fault traces along the GCF. Combining optically stimulated luminescence (OSL) ages with the offset obtained from satellite imagery analysis and field survey, the slip rate along the GCF can be estimated as 12-17 mm/yr since ca. 80 ka. This study also focuses on a section of the western segment of the GCF, where the slip has been recognized to have occurred at 3.0 ± 1.6 m more than 7 times. This ~3 m slip implies MW 7.2-7.4 earthquakes recurring to the western segment in every 200 yrs, while reaching about MW 7.7 if both segments could break at the same time.
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系統號NO000004561

Aug 16 2018 10:46:44
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