石油学报 ›› 2006, Vol. 27 ›› Issue (3): 6-10.DOI: 10.7623/syxb200603002

• 地质勘探 • 上一篇    下一篇

柴达木盆地新生代成盆动力学模式

李相博1,2,3, 袁剑英2, 陈启林2, 王琪1, 李斌1,3, 孟自芳1   

  1. 1. 中国科学院兰州地质研究所 甘肃 兰州 730000;
    2. 中国石油勘探开发研究院西北分院 甘肃 兰州 730020;
    3. 中国科学院研究生院 北京 100039
  • 收稿日期:2005-03-30 修回日期:2005-10-24 出版日期:2006-05-25 发布日期:2010-05-21
  • 作者简介:李相博,男,1965年7月生,1989年毕业于东北大学地质系,1996年获中国科学院兰州地质研究所地球化学硕士学位,现为中国石油勘探开发研究院西北分院高级工程师,中国科学院兰州地质研究所在读博士,现主要从事石油地质综合研究及遥感技术应用等方面的研究工作.E-mail:xiangboli@hotmail.com.
  • 基金资助:
    国家重点基础研究规划项目(2003CB214606);中国科学院知识创新工程项目(KZCX3-SW-128);中国石油天然气股份有限公司"十五"科技攻关项目(040107-3)联合资助.

Patterns of Cenozoic sedimentary basin forming dynamics in Qaidam Basin

Li Xiangbo1,2,3, Yuan Jianying2, Cheng Qilin2, Wang Qi1, Li Bin1,3, Meng Zifang1   

  1. 1. Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Northwest Branch Institute, Research Institute of Petroleum Exploration and Development, CNPC, Lanzhou 730020, China;
    3. Graduate School, Chinese Academy of Sciences, Beijing 100039, China
  • Received:2005-03-30 Revised:2005-10-24 Online:2006-05-25 Published:2010-05-21

摘要: 应用地震勘探资料和平衡剖面恢复技术对柴达木盆地断裂特征进行了研究,并结合柴达木盆地岩石圈结构特征和区域应力场资料,对盆地新生代构造演化阶段及盆地类型进行了重新划分和确定。该盆地演化既受区域应力场及盆缘走滑断裂活动的控制,也受地壳深部活动的影响,其成盆动力学模式为深层伸展,浅层压扭。这一模式不但较好地解释了盆地的构造特征,而且较好地解释了盆地新生代沉积迁移规律,是对"大型拆离伸展—拉分盆地"成盆模式的补充与完善。

关键词: 柴达木盆地, 断裂特征, 构造演化, 成盆动力学

Abstract: The seismic survey data and the restoring technology for profile equilibrium were applied to research the characteristics of faults in Qaidam Basin. On the basis of the lithosphere structural characteristics and the regional stress field in Qaidam Basin, the Cenozoic structural evolution stage and types of basin were redivided and determined. The result showed that the evolution of this basin was controlled by the regional stress field and breakout of margin slides and also influenced by deep activities of earth crust. The dynamic pattern was characterized by deep level extends and shallow lamination and torsion. This pattern can be used to explain the structural characteristics and Cenozoic deposition-migration rule of Qaidam Basin. It also becomes the supplement and consummation to the basin-forming pattern of the large-scale open-extending and pull-apart basins.

Key words: Qaidam Basin, fault characteristics, structural evolution, sedimentary basin-forming dynamics

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