罗北凹地富钾卤水中锂、硼的空间分布和富集规律研究

Study on the Spatial Distributionand Enrichment Regularity of Lithium and Boron in Potassium-rich Brinein Luobei Depression

中文关键词:  罗北凹地  锂( Li)  硼( B)  SOM-KM  富集规律

英文关键词:Luobeidepression  Li  B  SOM-KM  Enrichmentregularity

中文摘要:

      文章基于自组织神经网络( SOM)和 Kmeans耦合( SOM-KM)方法，利用罗北凹地 65组富钾卤水水化学数据，对富钾卤水中锂( Li)和硼( B)资源空间分布和富集规律进行了系统性研究。研究发现富钾卤水中 Li，B含量表现出一定的垂向分异性，自上而下 B浓度增高， Li浓度降低。聚类结果表明，罗北凹地富钾卤水可聚为 4类，各类地下水中 Li、 B浓度具有明显的空间差异性，高浓度的 Li、B集中分布在罗北凹地中东部区域。此外，水化学特征离子分析结果表明，罗北凹地富钾卤水中 Li、B元素富集主要受到蒸发浓缩及盐岩溶滤作用控制。

英文摘要:

      Based on self-organizing neural network(SOM)andKmeans(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 thatthe concentration ofLi andBin potassium-richbrine showed acertain verticaldifferentiation. From top to bottom，the concentration ofBincreased andthe 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 ofLi andBin various groundwater have obvious spatialdifferences，andthe high concentrations ofLi 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-richbrineinLuobeidepressionismainlycontrolledbyevaporationconcentrationandsaltrocklixiviation.