Abstract Based on 2009-2015 GPS velocity field data, the crustal strain field of Yunnan province is calculated and strain accumulation characteristics of two GPS stations selected at Honghe and Qujiang faults are analyzed. The results show that: (1) The Honghe, Qujiang, Xiaojiang main fracture strain fields contain tension and compression about time and space evolution characteristics. Recently, the south section of the Qujiang fault presents tension east-west. The northern section of the Honghe fault extension is larger, about 12.0×10-8/a, and the main performance of the southern Yunnan is pressure changes in NNE. (2) From the GPS profile, the Honghe, Qujiang faults show dextral strike slip and extensional variation in the two directions. However, from the value, the movement rate is larger in the north of the Honghe fault, where the strike slip rate is about 8.90 mm/a.
TANG Hongtao,JIA Peng,LIU Fang. Analysis of the Characteristics of Crustal Stress Accumulation in Yunnan Based on GPS Velocity Field[J]. jgg, 2018, 38(2): 125-128.
TANG Hongtao,JIA Peng,LIU Fang. Analysis of the Characteristics of Crustal Stress Accumulation in Yunnan Based on GPS Velocity Field[J]. jgg, 2018, 38(2): 125-128.
