| 太行山南缘断裂带新构造活动及其区域运动学意义 |
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| 引用本文： | 张岳桥,马寅生,杨农.太行山南缘断裂带新构造活动及其区域运动学意义[J].地震地质,2003,25(2):169-182. |
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| 作者姓名： | 张岳桥 马寅生 杨农 |
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| 作者单位： | 中国地质科学院地质力学研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金 (4 9972 0 76 ) |
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| 摘 要： | 基于TM遥感影像的构造地貌解译和野外活动断层滑动矢量的测量和分析 ,阐述了太行山南缘断裂带第四纪左旋走滑活动的构造和地貌标志 ,反演了断裂变形的构造应力场 ,探讨了太行山南缘断裂带左旋走滑活动的区域运动学意义。研究表明 ,第四纪时期太行山南缘断裂带是一条斜张左旋走滑断裂。断层滑动矢量观测显示新近纪以来有 2期引张应力作用 :早期为NE -SW向引张 ,晚期为NNW -SSE向引张 ,这个观测结果与渭河地堑盆地的新近纪—第四纪 2期引张构造应力场一致。根据华北盆地构造资料推断 ,太行山南缘断裂带向东延伸与盆地内的泌阳 -开封 -商丘断陷带相接 ,共同构成了南华北和北华北 2个断陷区的构造边界。指出该断裂带作为南华北块体北缘 ,其新构造时期的斜张左旋走滑活动与南部秦岭断裂系左旋走滑活动一致 ,它们组成了一个宽阔的、向东撒开的、弥散型分布的左旋走滑形变带 ,调节着华南地块相对于华北地块向SEE方向的构造挤出
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| 关 键 词： | 太行山南缘断裂带 新构造活动 斜张左旋走滑 弥散型变形 |
NEOTECTONIC ACTIVITY OF THE SOUTHERN MARGINAL FAULT ZONE OF THE TAIHANGSHAN MOUNTAINS AND ITS REGIONAL KINEMATIC IMPLICATIONS |
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| ZHANG Yue,qiao,MA Yun,sheng,YANG Nong.NEOTECTONIC ACTIVITY OF THE SOUTHERN MARGINAL FAULT ZONE OF THE TAIHANGSHAN MOUNTAINS AND ITS REGIONAL KINEMATIC IMPLICATIONS[J].Seismology and Geology,2003,25(2):169-182. |
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| Authors: | ZHANG Yue qiao MA Yun sheng YANG Nong |
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| Abstract: | Basing on TM imagery interpretation and field analysis of striated fault planes, we present in this paper morphological and structural evidence for Quaternary left lateral strike slip motion along the southern marginal fault zone of the Taihangshan Mountains and discuss their implication for regional kinematics. It is shown that the southern marginal fault zone of the Taihangshan Mountains behaves as a transtensional left lateral strike slip fault during Quaternary. Morphological evidence for left late |
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| Keywords: | Southern marginal fault zone of Taihangshan Mountains Neotectonic activity left lateral strike slip faulting distributed deformation |
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