石油与天然气地质 ›› 2018, Vol. 39 ›› Issue (1): 89-97.doi: 10.11743/ogg20180109

• 油气地质 • 上一篇    下一篇

塔里木盆地雅克拉断凸断裂差异变形特征及其控制因素

杨勇1,3, 汤良杰2,3, 刁新东4, 谢大庆4   

  1. 1. 中国地质科学院 地质力学研究所, 北京 100081;
    2. 中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249;
    3. 中国石油大学(北京) 盆地与油藏研究中心, 北京 102249;
    4. 中国石化 西北油田分公司, 新疆 乌鲁木齐 830001
  • 收稿日期:2016-12-21 修回日期:2017-09-28 出版日期:2018-02-28 发布日期:2018-03-12
  • 作者简介:杨勇(1986-),男,助理研究员,构造地质学。E-mail:yy349971854@163.com。
  • 基金资助:
    国家自然科学基金项目(41172125,41572105);中国地质调查局地质调查项目(1212011120099)。

Differential deformation and its control mechanism of fault structures in Yakela fault-salient, Tarim Basin

Yang Yong1,3, Tang Liangjie2,3, Diao Xindong4, Xie Daqing4   

  1. 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;
    2. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China;
    3. Basin & Reservoir Research Center, China University of Petroleum(Beijing), Beijing 102249, China;
    4. Northwest Oilfield Company, SINOPEC, Urumqi, Xinjiang 830001, China
  • Received:2016-12-21 Revised:2017-09-28 Online:2018-02-28 Published:2018-03-12

摘要: 在三维地震资料解释的基础上,研究了雅克拉断凸断裂差异活动特征,探讨其控制因素。受控于白垩系厚层泥岩和新近系吉迪克组膏盐岩,雅克拉断裂构造的发育具有明显的分层性:下构造层发育大型的基底卷入型逆冲断裂,中构造层发育呈雁列式密集分布的张扭性断层,上构造层发育盖层滑脱型逆冲断层。自下而上断裂构造变形强度逐渐减弱。雅克拉断凸断裂构造的演化经历了晚古生代逆冲断裂发育阶段、中生代逆冲断裂复活调整阶段、新近纪早期张扭性断裂发育阶段、新近纪晚期滑脱型逆冲断裂发育阶段等4个关键阶段。晚古生代的断裂活动与北昆仑洋和南天山洋闭合引起的周缘地体与塔里木地块的碰撞拼合相关,中生代和新生代的断裂活动是印度欧亚板块碰撞的远程效应在塔里木盆地内的构造响应。

关键词: 差异构造变形, 断裂构造, 雅克拉断凸, 塔里木盆地

Abstract: Based on the interpretation of 3D seismic data, the differential deformation characteristics of faults in Yakela fault-salient were studied and the controlling factors were discussed.Controlled by the thick mudstone of the Cretaceous and gypsum rocks of the Jidike Formation, the development of different faults is observed in different in vertical domains.Large basement involved thrust faults were developed in the lower structural section.Echelon-distributed extensional-shear faults were developed in the middle structural section.Capping-sliding faults were developed in the upper structural layers.The intensity of fault deformation gradually decreased from bottom to top.Formation of the faults experienced 4 critical stages:thrust faults development stage in late Paleozoic, thrust faults rejuvenation stage in Mesozoic, extensional-shear faults development stage in early Neogene and capping-sliding faults development stage in late Neogene.The late Paleozoic thrusting was largely related to the collision between the Tarim continental block and the peripheral terrains due to the closing of the North Kunlun Ocean at the end of the early Ordovician, followed by the closing of the South Tienshan Ocean at the end of Permian.The fault activities in Mesozoic and Cenozoic were the tectonic response of the far-field effect of the India-Eurasia collision.

Key words: differential structural deformation, fault structure, Yakela fault-salient, Tarim Basin

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