| 广宁深层次推覆构造前缘陡倾带变形构造研究 |
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| 引用本文： | 张伯友,俞鸿年.广宁深层次推覆构造前缘陡倾带变形构造研究[J].地震地质,1995,17(4):405-415. |
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| 作者姓名： | 张伯友 俞鸿年 |
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| 作者单位： | 中国科学院广州地球化学研究所，南京大学地球科学系 |
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| 摘 要： | 河台含金韧性剪切带是广宁深层次推覆构造前缘的一个陡倾带，它又是继推覆剪切之后再行右旋走滑剪切的复合带。首先解析了河台带中推覆与走滑两期构造变形的存在，并研究了带中的变形特征和运动规律及估算了几个主要糜棱岩带的水平走滑距离。通过显微镜和透射电镜，还研究了糜棱岩的显微、超显微构造，估算了变形的差异应力和应变速率
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| 关 键 词： | 推覆体 走滑断层 显微构造 糜棱岩 |
ON THE STRUCTURAL FEATURES OF THE FRONTAL STEEP-DIP SHEAR ZONE OF THE GUANGNING DEEP-LEVEL NAPPE IN WESTERN GUANGDONG |
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| Abstract: | Hetai gold－bearing ductile shear zone is a frontal steep-dip shear zone of Gunagning deep-level nappe structure in Western Guangdong，and is also a composite shear zone formed by thethrust shearing and subsequent dextral strike-slipping of Hetai shear zone. The characteristics ofdeformation and the microstructures of mylonites are also studied．In addition，the differentialstress and the strain rate of the deformation are estimated through study of the mylonites underpolarizing microscope and TEM |
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| Keywords: | Nappe Strike－slip fault Microstructure Mylonite |
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