首页|铝土岩系和煤系地层中沉积黏土型锂矿床:研究现状与展望

铝土岩系和煤系地层中沉积黏土型锂矿床:研究现状与展望

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沉积岩型锂矿是自然界中最主要的锂矿床之一,我国铝土岩系和煤系地层中沉积黏土型锂矿主要分布在扬子地块西南部和华北地块,该类型锂矿分布广、储量大,对其进行研究对破解我国未来锂资源困局具有重要意义.本文总结了我国铝土岩系和煤系地层中黏土型锂矿的分布状况,锂的赋存状态、来源,以及开发利用现状等方面的研究进展.锂的富集过程主要与风化-沉积作用及火山岩浆活动有关,锂主要来源于火山凝灰岩、早期形成的岩浆岩、黏土岩等富锂基底岩石.锂以锂绿泥石独立矿物或者类质同象/吸附在黏土矿物、三水铝石和勃姆石中.锂的提取流程与锂的赋存状态密切相关.随着实验及工业提锂技术的发展,该类型锂资源具有广阔的前景.
Current status and prospect of researches on sediment-hosted Li deposits in bauxite formations and coal-bearing strata in China
The sediment-hosted Li deposit is one type of the most important lithium deposits found in nature.Sediment-hosted Li deposits in bauxite formations and coal-bearing strata are mainly distributed in the southwestern Yangtze block and the North China block in China.This type of Li-clay deposit is famous for its large reserve,stable strata and wide distribution.Hence,studying this type of Li-clay deposits is of great significance to solve the lithium resource dilemma of China in the future.In this paper,we have summarized the distribution of this type of Li-clay deposits in bauxite formations and coal-bearing strata in China,and have sorted out research progresses on the Li occurrence state,material source,and development and utilization status of the Li-clay deposits.The Li enrichment process is mainly related to the weathering-sedimentation and volcanic magmatism processes,and the lithium was mainly sourced from the Li-rich basement rocks including volcanic tuff,early formed magmatic rock,clay rock and other rocks.Lithium mainly occurred in forms of lithium independent minerals(cookeite),and isomorphic replacement/adsorption in/on clay minerals,gibbsite,and boehmite.The Li extraction process is closely related to the occurrence state of lithium.With the development of the experimental and industrial technologies for extracting lithium from Li ores,this type of Li resources has a broad application prospect.

sediment-hosted Li-clay depositbauxite formationscoal-bearing strataoccurrence statusmetal sourcedevelopment and utilization potential

张七道、蒋少涌、王微、葛文

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中国地质大学(武汉) 地质过程与矿产资源国家重点实验室,资源学院,紧缺战略矿产资源协同创新中心,武汉 430074

中国地质调查局 昆明自然资源综合调查中心,昆明 650100

中国地质大学(武汉) 材料与化学学院,武汉 430074

沉积黏土型锂矿 铝土岩系 煤系地层 锂赋存状态 物质来源 开发利用潜力

中国地调局地质调查项目中国地调局地质调查项目国家自然科学基金

DD20220981DD2022096742321001

2024

矿物岩石地球化学通报
中国矿物岩石地球化学学会 中国科学院地球化学研究所

矿物岩石地球化学通报

CSTPCD北大核心
影响因子:0.912
ISSN:1007-2802
年,卷(期):2024.43(1)
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