投稿时间：2024-11-08
修订日期：2025-03-18
网络发布日期：2025-04-25
中文摘要:南美锂三角国家是近年来全球锂矿投资的热点区域，其中位于阿根廷西北部卡塔马卡省的Tres Quebradas盐湖锂矿是新近建成并投产的重要锂矿，但目前对该盐湖的地质特征及资源评价研究较少。文章通过综合分析该盐湖锂矿地质特征、探矿钻孔岩心编录以及地球物理数据解译，建立了6个富Li卤水地层单元，并以抽水试验为依据，分别对各单元Li品位、导水系数、渗透系数和给水度等参数进行了系统分析，结果表明该锂矿属于南美锂三角地区的优质盐湖锂矿。在此基础上，笔者进一步提出盐湖锂矿资源评价应以盐湖和盐类矿产地质勘查规范为指导，重点查明盐湖锂矿的控制条件与富Li卤水地层单元地质特征，并通过抽水试验构建导水系数与给水度等关键水文地质参数间的关联。
Abstract:The lithium triangle countries of South America have become a global hotspot for lithium resource investment in recent years. Among these, the Tres Quebradas Salar lithium project, located in the Catamarca Province of northwestern Argentina, is a recently completed and currently operating significant lithium brine mine. However, there is still limited research on its geological characteristics and resource evaluation. Through a comprehensive analysis of the geological characteristics of the brine lithium deposit, core logging from exploration drilling, and geophysical data interpretation, six lithium-rich brine aquifer units have been delineated. Based on pumping test results, key hydrogeological parameters, including lithium grade, hydroconductibility coefficient, permeability coefficient and specific yield (Sy) of each aquifer unit, were systematically analyzed. The results indicate that this deposit represents a high-quality salar-type lithium resource within the South American lithium triangle region. On this basis, the study further proposes that the evaluation of lithium resources in salars should adhere to the guidelines for the geological exploration of salt lakes and saline mineral deposits, with a focus on identifying the controlling factors of lithium mineralization and the geological characteristics of lithium-rich brine aquifer units. Additionally, pumping tests should be utilized to establish the relationships between key hydrogeological parameters such as hydroconductibility coefficient and specific yield, providing a scientific foundation for the development and utilization of saline lithium resources.
keywords:lithium-rich brine aquifer units hydroconductibility coefficient permeability coefficient specific yield resource evaluation Tres Quebradas brine lithium mine
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基金项目:本文得到紫金矿业集团股份有限公司科技项目矿山综合找矿预测专项(编号：4104KY2022030001)、国家重点研发计划项目斑岩铜金系统的综合找矿技术与增储示范（编号：2022YFC2903604）和巨龙铜多金属资源基地绿色勘查与开发示范（编号：2022YFC2905005）联合资助
引用文本：
张汉成,刘金辉,李顺庭,张顺金,林寿洪,黄志立,郑元平,张世东,陈威,陈建平,孟军辉,王小飞.2025.阿根廷Tres Quebradas盐湖锂矿地质特征及资源评价[J].矿床地质,44(2):334~348ZHANG HanCheng,LIU JinHui,LI ShunTing,ZHANG ShunJin,LIN ShouHong,HUANG ZhiLi,ZHENG YuanPing,ZHANG ShiDong,CHEN Wei,CHEN JianPing,MENG JunHui,WANG XiaoFei.2025.Geological characteristics and resource evaluation of Tres Quebradas brine lithium mine, Argentina[J].Mineral Deposits44(2):334~348
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