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 Distribution and Enrichment Regularity of Lithium and Boron in Potassium-rich Brine in Luobei Depression

作　　者：韩绪 张凡凯 李博昀[1] 邓宇飞[1] 王凌芬 于咏梅 李文学 李雪宁 HAN Xu;ZHANG Fankai;LI Boyun;DENG Yufei;WANG Lingfen;YU Yongmei;LI Wenxue;LI Xuening(Geology Institute of China Chemical Geology and Mine Bureau,Beijing,100101,China;SDIC Xinjiang Lop Nor Potash Co.,Ltd,Hami,839000,China)

机构地区：[1]中化地质矿山总局地质研究院,北京100101 [2]国投新疆罗布泊钾盐有限责任公司,新疆哈密839000

出　　处：《盐湖研究》2024年第2期45-53,共9页Journal of Salt Lake Research

基　　金：新疆维吾尔自治区科技支疆项目计划(指令性)项目(2021E02038)。

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。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 studied 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 concentrations of Li and Bin 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 potassiumrich brine in Luobei depression is mainly controlled by evaporation concentration and salt rock lixiviation.

关 键 词：罗北凹地 锂(Li) 硼(B) SOM-KM 富集规律 

分 类 号：P342[天文地球—水文科学]