中国地震研究（英文版）2005，Vol.19Issue(1)：64-73,10.
Slip-Rate on the Middle Altyn Tagh Fault since the Holocene Period
Slip-Rate on the Middle Altyn Tagh Fault since the Holocene Period
摘要
Abstract
By analyzing high-resolution SPOT images and in combination with fieldwork and chronometry, three typical fault-offset sites on the south-middle Altyn Tagh strike-slip fault were studied to obtain the sinistral horizontal slip rate of the fault. At Annanba, the left-lateral strike-slip rate on a branch of the south Altyn Tagh fault is 7.5 ± 1.7 mm/a since 9.36±0.73ka BP. At Seven Spring, the fault has four branches and the left-lateral strike-slip rate on one of them is 2.3 ± 0.5mm/a since 13.86 ± 1.07ka BP, and it is deduced that the total sliprate of all the four branches is 6.9 ± 1.5 ～ 9.2 ± 2.0 mm/a since Holocene. At Yuemakeqi, the left-lateral strike-slip rate of the fault is 10.6 ± 3.0mm/a since 4.73 ± 0.38 ka BP. A slip-rate of 7 ～11mm/a on the middle segment of the Altyn Tagh fault (between 88°30'E and 93°05'E)since Holocene can be deduced from the three sites mentioned above and the result is similar to the latest GPS observation.关键词
Altyn Tagh fault/Strike-slip fault/Offset landforms/Slip-rateKey words
Altyn Tagh fault/Strike-slip fault/Offset landforms/Slip-rate分类
天文与地球科学引用本文复制引用
Wang Feng,Li Ming,Xu Xiwei,Zheng Rongzhang..Slip-Rate on the Middle Altyn Tagh Fault since the Holocene Period[J].中国地震研究（英文版）,2005,19(1):64-73,10.基金项目
Financially supported by the National Development of Reform Commission of China Investment. （）
