| 硅酸盐结构中四面体层立体结构式的表述法 |
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| 引用本文： | 赫伟,叶大年.硅酸盐结构中四面体层立体结构式的表述法[J].岩石学报,1994,10(1):1-13. |
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| 作者姓名： | 赫伟 叶大年 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 本文创造一个用立体结构式表述四面体层的方法。首先用四面体Ｕ、Ｄ、Ｖ、Ｈ定向符号组合成结构基元或结构单元。其次把它们在二维空间平移交换（包括平移、滑移、旋转—平移、反伸—平移），得出四面体层的基本符号格式。最后在其固定的位置上标出平移变换的距离和方向、四面体层的厚度和层间连接方式，完成四面体层的立体结构式。由于某些架状硅酸盐结构，可看成是四面体层的叠加，因此，用立体结构式也可表述。
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| 关 键 词： | 硅酸盐结构，四面体层，立体结构式 |
SPATIAL STRUCTURE FORMULAE FOR TETRAHEDRAL LAYERS IN SILICATE STRUCTURES |
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| He Wei,Ye Danian and Xu Yun.SPATIAL STRUCTURE FORMULAE FOR TETRAHEDRAL LAYERS IN SILICATE STRUCTURES[J].Acta Petrologica Sinica,1994,10(1):1-13. |
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| Authors: | He Wei Ye Danian and Xu Yun |
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| Abstract: | In this paper a method was created to represent the tetrahedral layers insiliacte structures using the spatial structure formulae. The basic symbolformat of a tetrahedral layer is made up by the orientation symbol U, D, V and H of tetrahedrals which constitute fundamental structure units or structure units. In case of the structure of silicate is visualized as repeating of atetrahedra layer, its spatial structure formula can be written by adding thedirection and distance of translation or translation-transformation gliderotatory-translation in inversion-translation for the structural unit to the sitedefined. On the criber hand, where the structure of silicate is treated asrepeating of two tetrahedral layers, its spatial structure formula can bewritten by adding the connection modes and thickness of the tetrahedral layerexcept the direction and distance for the structural unit. Some silicates withframework structures can be considered as superimposing or repeating of thetetrahedral layer in a spatial form and so their structures can be representedby the spatial structural formulae. |
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| Keywords: | Silicate structure Tetrahedral layer Spatial structure formulae |
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