西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (3): 9-12.DOI: 10.3863/j.issn.1000-2634.2000.03.003

• 地质勘探 • 上一篇    下一篇

柴达木盆地北缘构造型式及油气勘探前景

曹运江1 陆廷清2 牟中海2 黄继祥2 胡受权3
  

  1. (1.湘潭工学院,湖南湘潭411201; 2.西南石油学院; 3.中山大学)
  • 收稿日期:2000-01-21 修回日期:1900-01-01 出版日期:2000-08-20 发布日期:2000-08-20
  • 通讯作者: 曹运江

STRUCTURAL STYLE AND HYDROCARBON EXPLO RATION PROSPECT IN THE NORTHERN MARGIN OF CHAIDAM BASIN

CAO Yun-jiang 1 LUTing-qing2 MU Zhong-hai2 et al    

  1. (Xiangtan Technical University)
  • Received:2000-01-21 Revised:1900-01-01 Online:2000-08-20 Published:2000-08-20
  • Contact: CAO Yun-jiang

摘要: 对柴达木盆地北缘(简称柴北缘)地区的构造型式,包括其发育背景、发育的几何扩展方式,以及平面、剖面展布特征及其分带性进行了研究;对主干逆冲断裂带及其间的逆冲推覆体带、逆冲席带和低应变区的特征进行了详细描述。通过野外观察和室内构造反演来研究推覆构造带的发展演变模式及形成机理,指出其逆冲推覆构造带和隐伏逆冲前缘带是最有利的油气勘探目标。

关键词: 柴达木盆地, 构造类型, 构造特征, 油气勘探

Abstract: A research has been performed on the structural style in the northern margin of Chaidam basin, with analyses made on the formative background, patterns of geometric spreading in the plane and in the section, and zonation of the structural fea-tures. The main thrust-slip fault belts and the nappe structure
zones, thrust sheets and low strain regions lying in between the main thrust-slip fault belts are described in detail. Field obser-vations and experimental modeling have been used to deduce the origination-evolution mode and formative mechanism of the nappe structures. It is pointed out that the thrust nappe struc-ture belts and the hidden thrust fore-borderlands are favorable
prospects for hydrocarbon exploration in the area.

Key words: Chaidam basin, structural style, thrust -slip, mechanism, experimental modeling, exploration prospect

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