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GPS monitoring of the crustal motion in southwestern China

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Chinese Science Bulletin

Abstract

Through GPS carrier phases observation in southwestern China during 1991–1997, the velocity field within eastern Qinghai-**zang (Tibet) and its neighbour regions has been established. The velocity of those sites in and west of Chuan-Dian block is mostly 5–10 mm · a™1 relative to the fiduciary station CHDU (Chengdu), and the motion in Chuan-Qing and Yangtze blocks east of the **anshuihe-**aojiang fault is weak with a velocity of about 0–7 mm · a−1. The velocity vector in these areas indicates a clockwise rotation vortex rather than the so-called intensive eastward pushing or eastward escape. The main pattern of the crustal deformation is a clockwise rotation vortex structure and a differential slip along the boundary fault between different blocks.

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Authors and Affiliations

  1. Chengdu Institute of Geology and Mineral Resources, 610082, Chengdu, China

    Zhiliang Chen, Xuanyang Zhang, Feng Shen, Jixiang Zhao, Yu** Liu & Wenqing Tang

  2. Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    Feng Shen, Clark B. Burchfiel, Robert W. King & Leigh H. Royden

Authors
  1. Zhiliang Chen
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  2. Xuanyang Zhang
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  3. Feng Shen
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  4. Jixiang Zhao
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  5. Yu** Liu
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  6. Wenqing Tang
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  7. Clark B. Burchfiel
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  8. Robert W. King
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  9. Leigh H. Royden
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Cite this article

Chen, Z., Zhang, X., Shen, F. et al. GPS monitoring of the crustal motion in southwestern China. Chin.Sci.Bull. 44, 1804–1807 (1999). https://doi.org/10.1007/BF02886164

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  • DOI: https://doi.org/10.1007/BF02886164

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