Oil & Gas Geology ›› 2002, Vol. 23 ›› Issue (4): 368-371.doi: 10.11743/ogg20020414

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RESEARCH ON THE SEGMENTATION OF DAXING FAULT

Zhao Hongge, Liu Chiyang   

  1. Department of Geology, Northwest University, Xi'an
  • Received:2002-04-23 Online:2002-12-25 Published:2012-01-16

Abstract:

Daxing fault in Jizhong sag is characterized with segmentation and variations for each segment. The fault, according to its extending trends, can be divided into four segments namely; north segment(NNE trend), mid-north segment(NE trend), mid-south segment(near EW trend) and south segment(near NS trend).Each segment has a distinctive difference of its own in fault geometry, associated structures, active age and the sedimentation control etc. Especially, the NE trend segment controls the structural characteristics of the whole Langgu sag. The structural character varies in the hinge area between two segments. As a boundary fault controlling the sag, the evolution of Daxing fault has intrinsic correlations with each segment due to the same effects of extensional stress field in the early Tertiary.

Key words: Langgu sag, Daxing fault, segmentation, trending, structural characteristics, hinge Position, evolution

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