| 何达,章浩,王宇可,俎波,张华,刘文峰,姚佛军,刘超,刘亚楠,刘成林.新疆库木库里盆地盐湖水化学特征及钾锂资源演化[J].矿产勘查,2026,17(3):445-457 |
| 新疆库木库里盆地盐湖水化学特征及钾锂资源演化 |
| Hydrochemical characteristics and evolution of potassium-lithium resources in the salt lakes of the Kumkol Basin, Xinjiang |
| 投稿时间:2026-01-25 |
| DOI:10.20008/j.kckc.202603002 |
| 中文关键词: 钾锂资源 水化学特征 库木库里盆地 暖湿淡化 |
| 英文关键词: potash and lithium resources hydrochemical characteristics Kumkol Basin warm-humid dilution |
| 基金项目:本文受新疆维吾尔自治区重大科技专项(2022A03009)和科技部第三次新疆综合科学考察项目(2022xjkk1303)联合资助。 |
| 作者 | 单位 | | 何达 | 中国地质大学武汉资源学院,湖北武汉 430074 | | 章浩 | 中国地质大学武汉资源学院,湖北武汉 430074 | | 王宇可 | 中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京 100037 | | 俎波 | 中国地质大学武汉资源学院,湖北武汉 430074 新疆维吾尔自治区人民政府国家 305项目办公室新疆维吾尔自治区自然资源与生态环境研究中心,新疆乌鲁木齐 830063 | | 张华 | 中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京 100037 | | 刘文峰 | 新疆巴音郭楞蒙古自治州阿尔金山国家级自然保护区管理局,新疆库尔勒 841000 | | 姚佛军 | 中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京 100037 | | 刘超 | 新疆维吾尔自治区地质研究院,新疆乌鲁木齐 830000 | | 刘亚楠 | 新疆维吾尔自治区地质研究院,新疆乌鲁木齐 830000 | | 刘成林 | 中国地质大学武汉资源学院,湖北武汉 430074 新疆维吾尔自治区人民政府国家 305项目办公室新疆维吾尔自治区自然资源与生态环境研究中心,新疆乌鲁木齐 830063 |
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| 中文摘要: |
| 新疆库木库里盆地阿牙克库木湖和阿其克库勒湖是昆仑山北部规模最大的盐湖系统之一。本文基于 2024年最新野外调查结果,结合卤水水化学分析与遥感监测数据,系统研究了阿牙克库木湖与阿其克库勒湖的水化学特征、成矿物质来源及近 40 a来盐湖变化趋势,以期为盐湖型钾锂资源评价与开发利用提供基础依据。研究显示:(1)阿牙克库木湖卤水矿化度为 49.20 g/L,水化学类型属硫酸钠亚型,钾溴系数为 53.82,K和 B相对富集,显示出较明显的蒸发浓缩特征;(2)阿其克库勒湖矿化度为 16.89 g/L,水化学类型为碳酸盐型,Li相对富集,表现出值得进一步关注的锂异常特征;(3)两湖成盐物质均与区域蒸发盐岩溶滤和蒸发浓缩作用密切相关,并受深部水-岩反应影响;(4)受近 40 a来暖湿气候驱动,阿牙克库木湖面积扩张近一倍,导致卤水 TDS由 145.9 g/L降至 49.2 g/L,钾、硼等主要矿化指标显著降低。总体上,阿牙克库木湖与阿其克库勒湖分别具有一定的钾、锂成矿条件,但暖湿气候引起的持续淡化过程对盐湖资源品位与开发具有重要影响。 |
| 英文摘要: |
| Ayakum Lake and Aqqikkol Lake in the Kumkol Basin, Xinjiang, constitute one of the largest salt-lake systems in the northern Kunlun region. Based on the latest field investigations conducted in 2024, and integrat-ing brine hydrochemical analyses with remote-sensing monitoring data, this study systematically examines the hy-drochemical characteristics, sources of ore-forming materials, and the evolutionary trends of these two salt lakesover the past four decades, with the aim of providing a scientific basis for the evaluation and development of saltlake-type potash and lithium resources. The results show that: (1) the brine of Ayakum Lake has a salinity of 49.20g/L, and its hydrochemical type belongs to the sodium-sulfate subtype; it is characterized by a K/Br coefficient of 53.82 and relative enrichment in K and B, indicating a pronounced evaporative concentration signature; (2) thebrine of Aqqikkol Lake has a salinity of 16.89 g/L, belongs to the carbonate type, and is relatively enriched in Li,showing a lithium anomaly worthy of further attention; (3) the salinity-forming materials of both lakes are closely re-lated to the dissolution of regional evaporite strata and evaporative concentration, and were also influenced by deepwater-rock interaction; and (4) driven by a warm-humid climatic trend over the past 40 years, the area of AyakumLake has nearly doubled, resulting in a decline in brine TDS from 145.9 g/L to 49.2 g/L, accompanied by significantdecreases in major mineralization indicators such as K and B. Overall, Ayakum Lake and Aqqikkol Lake exhibit cer-tain potash-and lithium-forming conditions, respectively; however, the persistent freshening induced by the warm-humid climate has had an important impact on the grade and development potential of salt-lake resources. |
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