摘要
本文用离子坐标变化的术语讨论了辉石晶体结构的微变化。讨论了结构中的O3′-O3—O3″角与y_(o3-o3′)数值的关系,y_(M_2-o3′),与y_(M_2-o3)的关系,Z_(o3′-M_2)与Z_(M_2-o3)的关系,Z_(o3)与y_(o3)的关系等。根据这些变化特点。
This paper describes the microstructures of pyroxene crystals, and discus-ses the variation regularities of crystal structure of pyroxenes in terms of varia-tions in characteristic ion coordinates with temperature and composition. Somediagrams are presented, including the diagrams of correlation between theO3'-O3-O3' angle and the y_(O3-O3)' value, between the y_(M_2-O3)' value and they_(M_2-O3) value, between the z_(O3'-M_2) value and the z_(M_2-O3) value and between thez_(O3) value and the y_(O3) value. On the basis of the above discussion, some regularities governing the variation of pyroxene structure are presented.
出处
《矿物学报》
CAS
CSCD
北大核心
1989年第4期304-311,共8页
Acta Mineralogica Sinica
关键词
辉石
晶体结构
微变化
离子坐标法
pyroxene
crystal structure
ion coordinate indication method
