| 走滑断裂带中挤压阶区内部剪切构造初探 |
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| 引用本文： | 宋方敏,俞维贤.走滑断裂带中挤压阶区内部剪切构造初探[J].地震地质,1998,20(4):56-348. |
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| 作者姓名： | 宋方敏 俞维贤 |
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| 作者单位： | [1]中国地震局地质研究所 [2]云南省地震工程研究院 |
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| 摘 要： | 野外地质调查和航片立体镜下解译发现，小江断裂带北段蒙姑和东支大营盘两个挤压阶区内部发育有剪切构造，它们在地表主要表现为断裂槽地、断层陡坎、地裂缝等。挤压阶区内部剪切构造和拉张阶区内部剪切构造一样，是阶区形成后，随着走滑断裂的进一步活动而形成的新生性构造
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| 关 键 词： | 走滑断层 剪切构造 挤压阶区 |
PRELIMINARY STUDY OF THE INNER SHEAR STRUCTURES IN THE COMPRESSIONAL STEPOVER OF STRIKE SLIP FAULT ZONES |
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| Song Fangmin.PRELIMINARY STUDY OF THE INNER SHEAR STRUCTURES IN THE COMPRESSIONAL STEPOVER OF STRIKE SLIP FAULT ZONES[J].Seismology and Geology,1998,20(4):56-348. |
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| Authors: | Song Fangmin |
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| Abstract: | Field investigation and airphoto interpretation have revealed that shear structures were developed in two compressional stepovers at Menggu on the northern segment of Xiaojiang fault zone and Dayingpan on the eastern branch of the fault zone. The shear structures appear on the earth surface mainly as fault troughes, fault scarps, surface fissures, beaded ponds and depressions. The inner shear structures in Menggu stepover extend about 5km, while those in Dayingpan stepover for about 3km. The results of high |
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| Keywords: | Strike slip fault Shear structure Compressional stepover |
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