Earth Science Frontiers ›› 2010, Vol. 17 ›› Issue (3): 166-190.

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Relationship between NW faults of West Shandong and YiShu fault zone in Late Mesozoic and their geotectonic setting operations.

 WANG  Xian-Mei, ZHONG  Da-Lai, LI  Li, DING  Ceng-Yong, LI  Song, ZHANG  Rong-Jiang   

  1. 1Exploration & Production Research Institute, SINOPEC, Beijing 100083, China
    2Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    3China University of Petroleum(East China), Dongying 266555, China
  • Received:2010-02-21 Revised:2010-03-09 Online:2010-05-15 Published:2010-06-18

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Abstract:

 The Late Mesozoic was a turning point in the course of tectonic evolution of the North China Block. Structural events of YiShu fault zone during this time may be divided into three periods: 160 Ma B.P., 130110 Ma B.P. and 9080 Ma B.P., which correspond to the fault movements of transpressional sinistral strikeslip，of transtensional sinistral strikeslip and of transpressional dextral strikeslip, respectively. Geometric, kinematic and chronologic analysis between YiShu fault zone and northwest faults showed that they can be categorized as the conjugate faults during the late Mesozoic. In this article, we also discussed the dynamic mechanisms of NW faults and YiShu fault zone movements in the late Mesozoic, including the structural evolutionary history and the characteristics of NW faults in east Shandong.

Key words:  , northwest faults, YiShu fault zone, dynamic background, Late Mesozoic, conjugate faults

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