库车坳陷东段差异构造变形特征及控制因素
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滕学清(1965—),男,山东青岛人,教授级高级工程师,博士,从事石油地质与工程钻井方面的管理工作。联系电话:(0996) 2176496,E-mail:tengxq—tlm@petrochina.com.cn。

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国家科技重大专项“库车前陆冲断带重点区带构造解析及中生界原型盆地研究”(2011ZX05003-004)。


Differential structural deformation and its control factors in the eastern segment of Kuqa depression
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    库车坳陷东段不同构造带几何学变形特征和演化过程有所差异,依据最新的地震资料解释成果,对坳陷东段吐格尔明和东秋里塔格2个构造带的构造变形特征进行对比,在此基础上,结合生长地层特征和区域动力环境的转变讨论2个不同构造带的差异演化过程,并对其控制因素进行分析。结果表明:吐格尔明构造带为在古生代凸起和基底断裂基础上经后期构造活动改造而发育的断裂上盘断隆背斜,盐构造发育较少,整体上表现为均一构造变形;东秋里塔格构造带主要构造变形发生在新近纪以来,盐构造较为发育,分层收缩构造变形特征显著。导致这种差异的主要因素为各构造带遭受的应力、先存构造和盐岩沉积厚度不同。

    Abstract:

    The geometrical deformation and tectonic evolution vary with different structural belts in the eastern segment of Kuqa depression. Based on the newest seismic data interpretation achievements,geometrical tectonic deformation characteristics of Tugerming and eastern Qiulitag tectonic zones located in the eastern segment of Kuqa depression were contrasted. On this basis,combined with the characteristics of growth strata and the transformation of regional dynamic environment,differential evolutional process and control factors of the two structural belts were investigated. The results show that the Tugerming tectonic belt is a faulted anticline developed above the hanging wall that is based on the Paleozoic uplift and basement-involved fault,which suffered tectonic reconstruction. There are few salt structures developed in Tugerming structural zone,and the whole deformations are relatively homogeneous. While the major tectonic deformation of eastern Qiulitage mainly occurred in the Neogene and salt structures are well developed,and hierarchical shrinked structural deformations are significant. The main factors leading to this difference are the size of tectonic stress,pre-existing structure and original thickness of salt rock.

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滕学清,李勇,杨沛,杨克基,李宁,谢恩.库车坳陷东段差异构造变形特征及控制因素[J].油气地质与采收率,2017,24(2):15~21

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  • 在线发布日期: 2017-03-28
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