| 柴达木盆地狮子沟构造带分层变形特征 |
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| 引用本文： | 王建乔,高嵩蒿,王丽琼,张兰,龚鑫,于福生.柴达木盆地狮子沟构造带分层变形特征[J].吉林林学院学报,2010(5):477-480. |
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| 作者姓名： | 王建乔 高嵩蒿 王丽琼 张兰 龚鑫 于福生 |
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| 作者单位： | 中国石油大学（北京）地球科学学院,北京102249 |
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| 基金项目： | 中国石油大学（北京）第九批大学生科技创新项目 |
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| 摘 要： | 柴西地区构造带与阿尔金断裂近垂直,与昆仑山山前断裂近平行,以基底逆冲断层、压扭性断层、反转断层为主要构造要素发育的强变形带构成不同尺度构造单元的边界.通过精细的构造解析,认为狮子沟构造带的滑脱层与细砂山组沉积是伸展体制转向挤压体制的关键.柴西地区中、新生代经历了裂陷伸展与挤压收缩交替变化的构造演化过程,可以划分为侏罗纪裂陷、白垩纪坳陷、古近纪弱裂陷、新近纪-第四纪挤压收缩等构造演化阶段.根据物理模拟实验分析了狮子沟构造带的分层变形特征.
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| 关 键 词： | 构造带 构造变形模式 构造演化模式 构造分层变形 |
Layering Deformation Characteristics of Shizigou Structural Zone in Qaidam Basin |
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| Authors: | WANG Jian-qiao GAO Song-song WANG Li-qiong ZHANG Lan LONG Xin YU Fu-sheng |
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| Institution: | (College of Earth Science,China University of Petroleum,Beijing 102249,China) |
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| Abstract: | Structural zone of west Qaidam Basin is almost vertical to Aerjin Fault,and parallel to Kunlun Mountain front fault.The high deformation zone,which derived from such main structural elements like sole thrust,knick thrust,inversion thrust,developed different classes of tectonic units＇ margins.Through careful and attentive structural elucidation,the decollement zone developed in Shizigou structural zone and the sedimentation of Youshashan formation played a crucial role in the transformation from extension to contraction.During Mesozoic Era and Cenozoic Era,the complex structural evolution which involves extension of faulted depression and compression by turns is divided into the following structural stages：Jurassic chasmic stage,Cretaceous depression stage,Early Tertiary weak chasmic stage,Neocene-Quaternary compression stage.The layering deformation of structure in Shizigou was analyzed on the basis of physical simulation tests.. |
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| Keywords: | structural zone tectonic deformation mode structural evolution mode layering deformation of structure |
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