渝南水江板桥铝土矿区锂的分布规律及其影响因素研究

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。

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

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=0.820 between Lithium and A12O3, it is a severe plus correlation. The average of correlation coefficient r=-0.653 between Lithium and SiO2, it is a moderate negative correlation. The average of correlation coefficient r=0.885 between 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.