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辽东湾坳陷东部地区走滑断裂发育特征及走滑量的估算

房璐 吴智平 李伟 张婧 肖瑶 张茜

房璐, 吴智平, 李伟, 等, 2017. 辽东湾坳陷东部地区走滑断裂发育特征及走滑量的估算. 地质力学学报, 23 (3): 459-466.
引用本文: 房璐, 吴智平, 李伟, 等, 2017. 辽东湾坳陷东部地区走滑断裂发育特征及走滑量的估算. 地质力学学报, 23 (3): 459-466.
FANG Lu, WU Zhi-ping, LI Wei, et al., 2017. THE DEVELOPMENT CHARACTERISTICS OF STRIKE-SLIP FAULTS AND THE ESTIMATION OF STRIKE-SLIP DISPLACEMENTS OF THE EASTERN LIAODONG BAY DEPRESSION. Journal of Geomechanics, 23 (3): 459-466.
Citation: FANG Lu, WU Zhi-ping, LI Wei, et al., 2017. THE DEVELOPMENT CHARACTERISTICS OF STRIKE-SLIP FAULTS AND THE ESTIMATION OF STRIKE-SLIP DISPLACEMENTS OF THE EASTERN LIAODONG BAY DEPRESSION. Journal of Geomechanics, 23 (3): 459-466.

辽东湾坳陷东部地区走滑断裂发育特征及走滑量的估算

基金项目: 

国家科技重大专项 2016ZX05024-002-001

辽东湾探区整体构造解释及盆地构造演化研究 CCL2013TJXSBS1881

详细信息
    作者简介:

    房璐(1992-), 女, 硕士研究生, 主要从事构造地质学、盆地构造分析等方面的研究。E-mail:lilian398375110@sina.com

  • 中图分类号: P313

THE DEVELOPMENT CHARACTERISTICS OF STRIKE-SLIP FAULTS AND THE ESTIMATION OF STRIKE-SLIP DISPLACEMENTS OF THE EASTERN LIAODONG BAY DEPRESSION

  • 摘要: 运用丰富的三维地震资料,详细刻画了辽东湾坳陷东部地区三条主干走滑断裂的平面和剖面特征,不同走滑断裂发育特征不同,以及同一断裂也具有分段差异性。整体而言,辽东湾坳陷东部地区在平面上,由东到西、从南北两端向中间,走滑强度逐渐增大。通过构造物理模拟实验的方法,对辽东湾坳陷三条主干走滑断裂的走滑位移量进行估算,结果表明,辽中地区走滑断裂走滑量大于辽东地区;而三条断裂在渐新世时期的走滑位移量和平均走滑位移速率均是最大的,说明辽东湾坳陷东部地区在渐新世时期走滑活动强烈。

     

  • 图  1  辽东湾坳陷的位置及构造单元平面分布图

    F1:辽东1号断裂, F2辽中2号断裂, F3辽中1号断裂, F4辽西3号断裂, F5辽西2号断裂, F6辽西1号断裂, F7辽西南1号断裂

    Figure  1.  Location and tectonic unit plane distribution of the Liaodong Bay depression

    图  2  辽东湾坳陷1000 ms和1800 ms等时相干切片

    Figure  2.  Comparison isochronous coherence slice (1000 ms and 1800 ms) in the Liaodong Bay Depression

    图  3  辽中1号断裂走滑双重构造模式图

    Figure  3.  Strike-slip duplex mode chart of Liaozhong 1 Fault

    图  4  辽东湾坳陷东部地区地震剖面结构特征(剖面位置见图 1)

    Figure  4.  Structural characteristics of a seismic profile in the eastern Liaodong Bay depression

    图  5  物理模拟实验装置及结果照片

    Figure  5.  physical modeling experiment apparatus and results

    图  6  辽东湾坳陷东部地区走滑断裂不同阶段走滑量和速率分布图

    Figure  6.  Strike-slip displacements and speed distribution in different stages in the eastern Liaodong Bay depression

    表  1  辽东湾坳陷东部走滑断裂不同段走滑量

    Table  1.   Strike-slip displacements in different segments in the eastern Liaodong Bay depression

    晚始新世 渐新世 新近纪-第四纪
    辽中1号断裂 北段 5059.6 m 8580 m 3510 m
    南段 4300.4 m 5720 m 3300 m
    辽中2号断裂 北段 1830.7 m 5016.1 m 1045.4 m
    南段 11259.3 m 3841.4 m 726.2 m
    辽东1号断裂 北段 1935.1 m 2404.4 m 1023.2 m
    南段 3713.4 m 6734.5 m 2083.6 m
    下载: 导出CSV
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  • 收稿日期:  2016-10-14
  • 刊出日期:  2017-06-28

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