Oil & Gas Geology ›› 2005, Vol. 26 ›› Issue (5): 680-687,702.doi: 10.11743/ogg20050520

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Characteristics of deposition and erosion in Chuxiong Late Triassic foreland basin

Zhou Yan1, Jin Zhijun1, Tang Liangjie2, Li Rufeng2   

  1. 1. Exploration & Production Research Institute, SINOPEC, Beijing;
    2. Chinese University of Petroleum, Beijing
  • Received:2005-04-30 Online:2005-10-25 Published:2012-01-16

Abstract:

Depositional wave analysis technique has been used to analyze the deposition and erosion characteristics of several typical profiles in Chuxiong basin,such as Xiaoqingpo in Xiangyun,Anlongbao,Sazhi in Yuanmou,Yipinglang in Lufeng,Wulong 1 well and Yuncan 1 well,and to establish their wave equations.There are mainly 4 deposition-erosion types in Chuxiong Late Triassic foreland basin,including boundary type(SB type),early deposition-late erosion type(T type),deposition type(TH type)and early erosion-late deposition type(H type).These four deposition-erosion types are in good correlation with the architecture of foreland basin.The boundary type(SB type),early depsotion-late erosion type(T type),deposition type(TH type)and early erosion-late deposition type(H type) are distributed in orogenic belt,overthrust belt,foreland hollow zone and foreland uplift zone,respectively.

Key words: foreland basin, wave geology, deposition-erosion, Chuxiong basin

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