Xinjiang Petroleum Geology ›› 2005, Vol. 26 ›› Issue (2): 134-136.

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On Genesis of Complex Normal Faults in Compressional Basin---An example of Gongshanmiao structural faulting in middle Sichuan basin

QIN Qi-rong1, LI Le2, SU Pei-dong3, XU Duo-wu4   

  1. 1. Southwest Petroleum Institute, Chengdu, Sichuan 610500, China;
    2. Geologic Survey Department, Sichuan Petroleum Administration Bureau, Chengdu, Sichuan 610213, China;
    3. Chengdu University of Technology, Chengdu Sichuan 610059, China;
    4. Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2004-03-20 Online:2005-04-01 Published:2020-08-24

Abstract: The genetic analysis of faulting system in Gongshanmiao structure of middle Sidman basin show that nonnal faults in compressional basin are complex normal faults with normal fault effect. due to conversion of structural compressional stress followed by causing sheared and opened faulting,This gentic result has been verified by numerical analysis and Griffith's theory in terms of geologic analysis. It is of importance to interpretations of seismic data from compressional basins.

Key words: compression, basin, structure, normal fault, origin, genesis

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