Oil & Gas Geology ›› 2001, Vol. 22 ›› Issue (4): 314-318.doi: 10.11743/ogg20010406

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ATTRIBUTE OF PALEOZOIC STRUCTURES AND ITS EVOLUTION CHARACTERISTICS IN KEPING FAULT-UPLIFT

Zhang Chen1, Zheng Duoming2, Li Jianghai1   

  1. 1. Department of Geology, Beijing University, Bejing;
    2. Tarim Headquarters of Petroleum Exploration and Development, Kurle, Xinjiang
  • Received:2001-09-12 Online:2001-12-25 Published:2012-01-16

Abstract:

Stratigraphic sequence,rock assemblage,palaeontologic species and sedimentary facies of Palaeozoic Era in Keping region bear comparison with Bachu region.It indicates that Keping and Bachu uplifts were connected in preMesozoic.They were a part of Tarim Basin.Embryonic form of KepingBachu uplift formed in Mesozoic.Mesozoic sediment was lacunae in Keping region.The region was effected by the accretion of southern margin of Eurasian Plate,far distance effect of plate collision and orogeny of southwest Tianshan Mauntains in Cenozoic.Keping thrust belt was formed along Kepingtage Shajingzi fault.Keping uplift constituted the upper thrust nappe of the thrust belt,the northwest extension part of Bachu uplift constituted the underlying structural layer of the thrust belt.It is possible to find oil and gas pools of thrust fault covered trap type and traction fold type.

Key words: structural attribute, thrust nappe, Keping faulted uplift

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