大地测量与地球动力学2018，Vol.38Issue(2)：125-128,4.DOI:10.14075/j.jgg.2018.02.003
基于GPS速度场的云南地壳应力积累特征分析
Analysis of the Characteristics of Crustal Stress Accumulation in Yunnan Based on GPS Velocity Field
摘要
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.关键词
GPS速度场/断裂/应变场/应力积累Key words
GPS velocity fields/fault/strain field/strain accumulation分类
天文与地球科学引用本文复制引用
唐红涛,贾鹏,刘芳..基于GPS速度场的云南地壳应力积累特征分析[J].大地测量与地球动力学,2018,38(2):125-128,4.基金项目
Project of National Earthquake Monitoring and Forecasting Experimental Field in Sichuan and Yunnan Province,No.2016CESE0202 （）
Youth Seismic Regime Tracking Project of CEA,No.2017010233.川滇国家地震监测预报实验场项目(2016CESE0202) （2016CESE0202）
中国地震局青年震情跟踪课题(2017010233). （2017010233）
