广西南丹某尾矿库矿物元素纵向分布规律研究

为了调查广西南丹某尾矿库矿物元素的纵向分布规律，参考相关标准并通过相关性分析、主成分分析、回归分析和通径分析研究了尾矿库内不同深度尾矿的矿物元素特征。结果表明，尾矿中各元素含量随深度变化均存在一定分层，表现出"二次富集"现象，且富集层尾矿表现出较好的工业利用潜力。在矿物元素分布规律的研究中发现Zn、Sb、Cd、Pb、Sn和Cu元素可归为一类，S、Fe和As元素可归为另一类，同一类矿物元素的分布规律相似；各矿物元素之间存在不同程度的相互作用，且发现了较好的拟合模型；通径分析表明S主要受到Fe、Cu和Zn的影响，Fe主要受到S和As的影响，Pb主要受到Sb的影响，Zn主要受到Cd、Cu和Sb的影响，Sn主要受到Zn、Cd和Cu的影响，Sb主要受到Pb和Zn的影响，Cu主要受到Zn、S和Sn的影响，As主要受到Fe、Sn和Cu的影响。综上表明，铅锌尾矿库中矿物元素存在"二次富集"现象，具有较好的工业利用潜力，矿物元素之间存在相互作用，进而影响各矿物元素的分布规律。 

Study on the Vertical Distribution of Mineral Elements in a Tailings Pond in Nandan,Guangxi

In order to investigate the spatial distribution regularities of mineral elements in a tailings pond in Nandan County, Guangxi, the content of mineral elements in different depths was studied for reference relevant standards and by regression analysis, correlation analysis and path analysis. Results show that some secondary enrichment layer exists with depth change, which have a potential value of industrial reclamation. In the study on the distribution of mineral elements, we found that Zn, Sb, Cd, Pb, Sn and Cu can be classified into one group, and S, Fe and As can be classified into another one, which indicated a similar distribution patterns in the same group; Elements interacts with each other, and good fitting models is found; Beta coefficient analysis show that S is mainly affected by Fe, Cu and Zn, Fe by S and As, Pb by Sb, Zn by Cd, Cu and Sb, Sn by Zn, Cd and Cu, Sb by Pb and Zn, Cu by Zn, S and Sn, As by Fe, Sn and Cu. In conclusion, secondary enrichment layer exists in lead-zinc tailings ponds, in which mineral elements interact with each other, then affects their distribution.