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GPS Observation and Study on Recent Crustal Movement in the Northeastern Area of Pamir,Xinjiang

Qiao Xuejun Wu Yun Du Ruilin Wang Xiaoqiang Wang Qi

中国地震研究(英文版)2001,Vol.15Issue(2):164-173,10.
中国地震研究(英文版)2001,Vol.15Issue(2):164-173,10.

GPS Observation and Study on Recent Crustal Movement in the Northeastern Area of Pamir,Xinjiang

GPS Observation and Study on Recent Crustal Movement in the Northeastern Area of Pamir,Xinjiang

Qiao Xuejun 1Wu Yun 1Du Ruilin 1Wang Xiaoqiang 2Wang Qi1

作者信息

  • 1. Institute of Seismology, China Seismological Bureau, Wuhan 430071, China
  • 2. Seismological Bureau of Xinjiang Uygur Autonomous Region, Urumqi 830011, China
  • 折叠

摘要

Abstract

Calculation of repeated observation data at the densified GPS monitoring network in northeastern area of Pamir together with data from IGS stations in the periphery of the area yielded the movement rate of more than 40 GPS station sites in the area, and, hence, the recent crustal deformation rate pattern and time series of fiducial GPS stations in the area were obtained. The result indicates that the principal movement direction of the GPS station sites is NNW, basically diagonal to the strike of Tianshan fold belt, i.e. a normal compression occurs in the Tianshan region. The movement pattern near Jiashi and its southwestern zone is some different from that of station sites in their surrounding areas, indicating a certain relation of tectonic deformation in Jiashi area to seismic activity during last years. The movement rate of station sites in the periphery of Tarim basin less varies and its direction is basically consistent.It indicates less or basically no deformation within Tarim basin.

关键词

Jiashi, Pamir/GPS observation/Crustal deformation

Key words

Jiashi, Pamir/GPS observation/Crustal deformation

分类

天文与地球科学

引用本文复制引用

Qiao Xuejun,Wu Yun,Du Ruilin,Wang Xiaoqiang,Wang Qi..GPS Observation and Study on Recent Crustal Movement in the Northeastern Area of Pamir,Xinjiang[J].中国地震研究(英文版),2001,15(2):164-173,10.

基金项目

The research is founded by the state 973 project (G1998040703) and key research project of the State Science & Technology Ministry (96-913-07-03), China. (G1998040703)

中国地震研究(英文版)

2096-9996

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