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作者在文章中提出了综合分散指数并用于评价地球化学场的破坏程度。分散指数是根据一个样品的分析数据按公式: 分散指数等于1/(N-1)∑(KK_j-)~2进行的。式中N——样品中所分析元素的数量;KK——样品中j元素的浓度系数(克拉克值);——样品巾KK元素的平均值。在计算分散指数过程中利用了定量方
In the article, the author proposes a comprehensive index of dispersion and is used to evaluate the extent of damage to the geochemical field. Dispersion index is based on the analysis of a sample according to the formula: dispersion index is equal to 1 / (N-1) Σ (KK_j-) ~ 2. Where N - the number of elements analyzed in the sample; KK - the concentration factor of the j element in the sample (Clarke value); - the average of the KK elements in the sample. Quantitative terms are used in the calculation of dispersion indices