钇易解石的高分辨电子显微学研究  

A HIGH RESOLTION TRANSMISSION ELECTRON MICROSCOPIC STUDY OF YTTRIUM AESCHYNITE

作　　者：西门露露 贾春林 丁孝石[2] 

机构地区：[1]复旦大学材料科学研究所 [2]中国地质科学院矿床研究所

出　　处：《矿物学报》1990年第2期97-101,T001,共6页Acta Mineralogica Sinica

摘　　要：本文利用EM-430分析透射电子显微镜研究了内蒙古斑岩型稀有金属矿床中的天然量质钇易解石。电子衍射分析表明该矿物系斜方晶系,其晶胞常数为:a=5.22,b=10.92,c=7.44。同时摄取了Z轴方向及X轴方向投影的高分辨结构象。结构象与由X射线结构分析导出的人工晶质易解石结构模型中重原子排列吻合得很好。The crystalline yttrium aeschynite was found in some rare-metal alkaline granites of Nei Mongol Autonomous Region. It was studied by Philips EM-430 transmission electron microscopy. The electron diffraction patterns show that the lattice has an orthorombic unit cell with a=5.22, b=10.92, c=7.44. High resolution electron microscopic images of section a-b and section b-c are presented in the paper. The excellent correspondence between the images of yttrium aeschynite obtained by means of HREM and the model structure derived from X-ray analyses can be observed.

关 键 词：高分辩 电镜 电子显微学 高分辨 

分 类 号：P578.492[天文地球—矿物学]