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地质通报  2008 

岩石电子背散射衍射(EBSD)组构分析及应用

, PP. 1638-1645

Keywords: 电子背散射衍射(EBSD),显微构造,组构,造岩矿物,硫化物

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Abstract:

电子背散射衍射(EBSD)技术是现代构造地质学与显微构造分析领域一项崭新的技术,它与现代高分辨率扫描电子显微镜和能谱分析设备结合,可以对块状样品中微米或纳米级尺度的颗粒进行晶体结构分析,从而使微观结构、微区成分与结晶学数据结合起来,能够更精细地对比研究矿物和岩石显微构造,为岩石显微构造分析开辟了一个全新的领域。分析了EBSD技术的基本原理、系统构成、样品制备和工作程序。介绍了石英组构测量,极细粒物质(微角砾岩)的组构特点,二轴晶矿物(角闪石)的组构、变形机制和金属硫化物组构分析的应用实例,对于应用EBSD系统开展研究存在的一些问题进行了讨论。

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