新疆石油地质

新疆石油地质 ›› 1995, Vol. 16 ›› Issue (2): 102-108.

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塔里木盆地西南坳陷的构造类型

肖安成, 陈毓遂, 胡望水, 刘学峰, 刘生国   

  1. 江汉石油学院地质系 湖北江陵 434100
  • 收稿日期:1994-05-27 出版日期:1995-06-01 发布日期:2020-07-29
  • 作者简介:肖安成: 讲师 石油地质

STRUCTURAL TYPE OF SOUTHWEST DEPRESSION, TARIM BASIN

Xiao Ancheng, Chen Yusui, Hu Wangshui, Liu Xuefeng, Liu Shengguo   

  1. Lecturer, Petroleum Geology, Geology Department of Jianghan Petroleum Institute, Jiangling, Hubei 434102
  • Received:1994-05-27 Online:1995-06-01 Published:2020-07-29

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摘要： 通过地面地质和大量高质量的地震剖面的解释, 提出塔里木盆地西南坳陷构造类型可分为2大类6亚类10小类: ①基底卷入型: 包括基底逆冲、走滑扭动、逆冲与扭动复合、基底挠曲; ②盖层滑脱型: 包括张性断陷、双重逆冲、叠瓦式逆冲、滑脱背斜、重力滑动、断弯背斜构造。目前已在滑脱背斜和双重构造上部找到了油田、推测各种滑脱构造、扭动构造中所伴生的褶皱－断裂系统和基底挠折构造、基底卷入的背斜是油气勘探中的远景区。

关键词: 塔里木盆地, 构造类型, 基岩, 盖层, 油气勘探

Abstract: Through the studies of surface geology and interpretation of great number of high-quality seismic sections, structural type of the southwest depression in Tarim basin may be divided into two major types, six subtypes and ten small types. The major types are: (1) basement rolling-in type, including basement thrust, strike-slip torsion, thrust-torsion complex and basement flexure: (2)caprock detachment type, involving tension fault depression, dual thrust, imbricate thrust, detachment anticline, gravity sliding and bend-faulted anticline. An oil reservoir has recently been discovered in detachment anticlines and the upper of dual structure. Therefore, it is estimated that various detachment structures, folded fault systems associated with torsion structure, basement flexure structure and basement rolling-in anticline are prospective area for oil and gas exploration in Tarim basin.

Key words: Tarim basin, Structural type, Basement rock, Caprock, Oil and gas exploration