| 钙稀土氟碳酸盐矿物中不同多型体间共晶格取向连生的微结构研究 |
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| 引用本文： | 吴秀玲,杨光明,孟大维,潘兆橹.钙稀土氟碳酸盐矿物中不同多型体间共晶格取向连生的微结构研究[J].矿物岩石,1994(2). |
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| 作者姓名： | 吴秀玲 杨光明 孟大维 潘兆橹 |
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| 作者单位： | 中国地质大学，中国科学院金属研究所固体原子象实验室 |
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| 摘 要： | 利用透射电子显微镜研究钙稀土氟碳酸盐矿物中不同多型体间共晶格取向连生的微结构，发现氟碳钙铈矿（ＢＳ）及Ｂ＿２Ｓ规则混层矿物不同多型体之间存在５种新的共晶格取向连生现象，共晶格取向连生面网为（０００１）．研究表明，多型体间共晶格取向连生结构与Ｂ＿ｍＳ＿ｎ型规则混层矿物、多型体、微体双晶和矿物种间的共晶格取向连生等以衍生体的形式共存于氟碳钙柿矿自然品位之中。这种多型休间共晶格取向连生结构的形成可能与氟碳钙柿矿中ＣＯ＿３在结构层间的分布和排列有关。
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| 关 键 词： | 稀土矿物，多型，共晶格取向连生，透射电子显微镜 |
A STUDY OFTHE SYNTAXIC INTERGROWTHS BETSEEN DIFFERENT POLYTYPES IN THE CALCIUM-RARE-EARTH FLUOROCARBONATE MINERAL SERIESUNDER TRANSMISSION ELECTRON MICROSCOPE |
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| Wu Xiuling,Yang Guangming,Meng Dawei,Pan Zhaolu.A STUDY OFTHE SYNTAXIC INTERGROWTHS BETSEEN DIFFERENT POLYTYPES IN THE CALCIUM-RARE-EARTH FLUOROCARBONATE MINERAL SERIESUNDER TRANSMISSION ELECTRON MICROSCOPE[J].Journal of Mineralogy and Petrology,1994(2). |
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| Authors: | Wu Xiuling Yang Guangming Meng Dawei Pan Zhaolu |
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| Abstract: | The fine structure of the calcium-rare-earth fluorocarbonate minerals was studied withtransmission electron microscope.The phenomena of five new syntaxic intergrowths between polytypes in parisite(BS)and B_2S regular mixed-layer mineral have been discovered.The inter-face of the syntaxic interhrowth is(000l).It shows that the structure of syntaxic intergrowths be-tween polytypes coexist in one natural parisite grain with B_mS_n regular mixed-layer minerals,polytypes and microtwin as well as syntaxic intergrowths between minerals.The formation ofsyntaxic intergrowths may be related to the order distribution of CO_3 between structure layers inparisite. |
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| Keywords: | rare-earth mineral polytype syntaxic intergrowth transmission electron microscope |
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