| 镁铝榴石的化学成分分类及其在金刚石找矿中的指示意义 |
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| 引用本文： | 黄进初.镁铝榴石的化学成分分类及其在金刚石找矿中的指示意义[J].矿物岩石,1990,10(1):12-18. |
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| 作者姓名： | 黄进初 |
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| 作者单位： | 成都地质学院 成都 |
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| 摘 要： | 镁铝榴石是找寻金刚石的一种重要的指示矿物。本文应用了聚类分析方法，以镁铝榴石中的钙组分、铬组分、镁组分和镁组分（铁铝榴石）4种成分参数作变量，将56个样品分为6类，讨论了每一类样品的化学成分特点，确定了它们的标型意义，并应用多元判别分析得出了划分这6类和对未知样品进行判别归类的一组判别函数。
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| 关 键 词： | 镁铝榴石 化学成分 聚类分析 判别分析 找矿标志 分类 标型特征 金刚石矿床 |
THE STATISTICAL CLASSIFICATION OF PYROPE AND THE DIRECTORY SIGNIFICANCE FOR EXPLORATION OF DIAMOND |
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| Huang Jinchu.THE STATISTICAL CLASSIFICATION OF PYROPE AND THE DIRECTORY SIGNIFICANCE FOR EXPLORATION OF DIAMOND[J].Journal of Mineralogy and Petrology,1990,10(1):12-18. |
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| Authors: | Huang Jinchu |
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| Abstract: | Pyrope is one of the important directory minerals for exploration of diamond. Using four chemical composition indexes:Ca-,Cr-,Mg-and Fe-component as variables,56 pyrope samples have been classified into six groups with cluster analysis. The characteristics of chemical composition of each group are discussed and associated with its natural genesis, and therefore,the pyrope from each of the groups is of specified significance refered to exploration of diamond. Multiple discriminant analysis was then used to establish a group of discriminant functions relative to the samples in the six groups of pyrope respectively. |
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| Keywords: | pyrope chemical composition cluster analysis discriminant analysis classification typomorphic characteristic diamod |
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