| 斜方辉石的反演畴结构对其衍射效应的影响 |
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| 引用本文： | 徐洪武 薛纪越. 斜方辉石的反演畴结构对其衍射效应的影响[J]. 矿物岩石, 1991, 11(2): 1-4 |
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| 作者姓名： | 徐洪武 薛纪越 |
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| 作者单位： | 南京化工学院硅酸盐工程系，南京大学地球科学系 南京 210009，南京 210008 |
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| 摘 要： | 斜方辉石内部存在着众多的相邻间呈反演关系的(100)晶畴。这些晶畴的存在使斜方辉石的K为奇数的okl衍射之强度明显减弱,且参与衍射的晶畴的数目越多,其减弱的程度也就越大。这一现象在一定程度上掩盖了斜方辉石P2_(1ca)的真实对称性。与X射线衍射相比,利用电子衍射来研究斜方辉石的空间群类型具有明显的优越性。
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| 关 键 词： | 斜方辉石 反演畴结构 衍射效应 |
INFLUENCE OF INVERSIONAL DOMAIN STRUCTURE OF ORTHOPYROXENE ON ITS DIFFRACTION EFFECT |
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| Xu Hongwu Xue Jiyue. INFLUENCE OF INVERSIONAL DOMAIN STRUCTURE OF ORTHOPYROXENE ON ITS DIFFRACTION EFFECT[J]. Journal of Mineralogy and Petrology, 1991, 11(2): 1-4 |
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| Authors: | Xu Hongwu Xue Jiyue |
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| Abstract: | In orthopyroxene, there are many (100) domains being inversively orientational with the adjacent ones. This leads to the weakening of okl diffractions with K=odd, and the larger the number of domains that produce diffractions is, the weaker they are. It conceals the real symmetry of P2_(1ca) orthopyroxene to a certain extent. Electron diffraction is superior to x-ray diffraction in dealing with the type of the space group of orthopyroxene. |
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| Keywords: | orthopyroxene inversional domain structure diffraction effect x-rays diffraction electron diffraction |
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