Based on self-organizing neural network(SOM)and Kmeans(SOM-KM)coupling method,the spatial distribution and enrichment of Li and B resources in potassium-rich brine were systematically stud-ied by using 65 groups of potassium-rich brine hydrochemical data in Luobei depression.The study found that the concentration of Li and B in potassium-rich brine showed a certain vertical differentiation.From top to bottom,the concentration of B increased and the concentration of decreased.The clustering results show that the potassium-rich brine in the Luobei depression can be clustered into four categories.The concentra-tions of Li and B in various groundwater have obvious spatial differences,and the high concentrations of Li and B are concentrated in the central and eastern regions of the Luobei depression.In addition,the results of hydrochemical characteristic ion analysis show that the enrichment of Li and B elements in potassium-rich brine in Luobei depression is mainly controlled by evaporation concentration and salt rock lixiviation.
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