渝南水江板桥铝土矿区锂的分布规律及其影响因素研究

    Distribution law of Lithium and its influencing factors in Shuijiangbanqiao bauxite mining area,Southern Chongqing

    • 摘要: 通过对渝南水江板桥铝土矿区五个典型探槽中铝土矿(岩)和稀散元素锂的研究,发现Al2O3主要分布在含矿层位的上部和中上部,其矿石类型主要为豆(鲕)状和砾屑状,锂主要分布在含矿层位的上部和中上部,主要赋存的岩石类型为砾屑状高铝黏土岩。Li含量在200~1400×10-6之间,平均含量为830.23×10-6;Li在铝土矿含矿岩系上部和中上部的高铝黏土岩中最为富集;铝土矿矿石中Li含量较高,平均为531.37×10-6。Li与Al2O3相关系数平均值r=0.820,为正的强相关;Li与SiO2相关系数平均值r=-0.653,为负的中等相关;Li与A/S比值的相关系数平均值r=0.885,为正的强相关。在渝南铝土矿含矿岩系中,Li矿层的形成受层位、矿石类型的影响。

       

      Abstract: Based on the study of the bauxite and Scandium of Shuijiangbanqiao mine in Southern Chongqing,the Al2O3 was found distribute mainly in the upper and middle-upper layers,the main type of bauxite are pisolitic,olitic structures and massive structures.The Lithium was found distributed mainly in the upper and middle-upper layers,the main type of bauxite is massive bauxite.Lithium is changing from 200 to 1400×10-6 and average in 830.23×10-6.The content of Lithium which is higher in Aluminum clay than in bauxite.The average of correlation coefficient r=0.820between Lithium and Al2O3,it is a severe plus correlation.The average of correlation coefficient r=-0.653between Lithium and SiO2,it is a moderate negative correlation.The average of correlation coefficient r=0.885between Lithium and A/S,it is a severe plus correlation.The seam of Li was affected by horizons,the impact of ore types,southern Chingqing, China.

       

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