新疆石油地质

新疆石油地质 ›› 2002, Vol. 23 ›› Issue (3): 208-210.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地南缘东部构造样式与形成机制

吴建华1, 向书政1, 吴晓智1, 陈伟1, 吴鉴1   

  1. 1.中国石油 新疆油田分公司 勘探开发研究院,新疆 克拉玛依 834000;
    2.西南石油学院 石油工程学院,四川 南充 637100
  • 收稿日期:2001-12-30 出版日期:2002-06-01 发布日期:2020-08-07
  • 作者简介:吴建华（1965-）,男,新疆奎屯人,在读硕士生,高级工程师,地球探测与信息技术专业。联系电话:0990-6887215

Structures in East Part of Southern Margin in Junggar Basin and Their Formation Mechanism

WU Jian-hua, XIANG Shu-zheng, WU Xiao-zhi, CHEN Wei, WU Jian   

  • Received:2001-12-30 Online:2002-06-01 Published:2020-08-07
  • About author:WU Jian-hua (1965-), Male, Senior Engineer, Geophysical Prospecting, Research Institute of Exploration and Development, PetroChina Xinjiang Oil, Karamay, Xinjiang 834000, China

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摘要： 应用前陆盆地相关褶皱理论,对准噶尔盆地南缘喀拉扎—古牧地复杂构造进行了构造建模与构造形成机制分析,认为喀拉扎—古牧地地区受北天山、博格达、艾卡三组不对称走滑断裂系统的影响,形成了以剪切压扭作用为主的构造。喀拉扎背斜属浅层反向冲断双重构造,古牧地背斜为基底卷入型双重构造;山前推举带西部的齐古一昌吉背斜带与东部的古牧地—阜康背斜带是通过喀拉扎反冲断裂调整与转换而形成的;博格达走滑断裂不对称性,形成了不对称的昌吉向斜,成为一典型的复合含油气系统;喀拉扎与古牧地背斜代表两种不同类型的构造样式,为近期勘探的重要目标。

关键词: 准噶尔盆地, 喀拉扎, 古牧地, 构造, 构造类型, 机理

Abstract: The structural model and structural formation mechanism of Karaza-Gumudi complex structures in southern margin of Junggar basin are analyzed by applying folded theory related to foreland basin. Karaza-Gumudi area is subjected to the effects of asymmetric north Tianshan Mountain, Bogda and Aika shove fault systems, being dominated by shear and compresso-shear actions. Karaza anticline belongs to dual structure with shallow reversed thrust; Gumudi anticline to dual structure with basement-involved style. Qigu-Changji anticline belt in west of piedmont thrust zone and Gumudi-Fukang anticline belt in east of it were resulted from adjustment and transform of Karaza reversed fault. Asymmetric Changji syncline was formed by asymmetric action in Bogda shove fault, forming the largest and deepest subsiding center followed by a typical complex petroleum system. Karaza anticline and Gumudi anticline as two types of structural styles are major targets for hydrocarbon prospecting in the near future.

Key words: Junggar basin, Karaza, Gumudi, structure, structural type, mechanism

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