四川道孚容须卡稀有金属矿区土壤地球化学特征及找矿预测

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中文摘要：通过对四川省道孚县容须卡稀有金属矿区开展1:1万土壤地球化学测量工作,采集土壤样品8861件,分析16种元素含量,进行地球化学参数统计、相关性分析、聚类分析、因子分析,研究元素地球化学分布特征、单元素地球化学异常特征、组合元素地球化学异常特征.结果显示矿区内稀有金属元素富集规律明显,出现Li-Be-Cs-Sn和Nb-Ta两组异常,异常叠合较好.Li-Be-Cs-Sn异常主要分布于矿区中部、北东部及西部,Nb-Ta异常主要分布于矿区北部及北东部,与矿区内伟晶岩脉集中分布范围吻合.结合矿区地层、构造及岩浆岩特征,圈定出5个稀有金属矿找矿靶区,经地质填图、槽探及钻探工程验证,新发现了 42条具有锂、铍、铌、钽、铷矿化的伟晶岩脉,圈定出12条锂矿体,表明土壤地球化学测量在四川道孚容须卡稀有金属矿勘查中具有较好的应用效果.

外文标题：Geochemical characteristics and prospecting prediction of Rongxuka rare metal mining area in Daofu County of Sichuan

外文摘要：Based on the 1∶10000 soil geochemical survey of Rongxuka raremetal mining area in Daofu Coun-ty,Sichuan Province,8861 soil samples are collected,and the content of 16 elements is analyzed.The geo-chemical parameter statistics,correlation analysis,cluster analysis and factor analysis are carried out to stud-y the geochemical distribution characteristics of elements,the geochemical anomaly characteristics of single element and combination elements.The result shows that the enrichment regularity of rare metal elements in the mining area is obvious,and two groups of Li-Be-Cs-Sn and Nb-Ta anomaly appear,and the anomaly o-verlap is well.Li-Be-Cs-Sn anomaly is mainly distributed in the central,northeast and west parts of the min-ing area,and Nb-Ta anomaly is mainly distributed in the north and northeast parts of the mining area,which are consistent with the concentrated distribution of pegmatite veins in the mining area.Combined with the characteristics of strata,structure and magmatic rocks in the mining area,five prospecting target areas of rare metal mineralization are delineated.After geological mapping,trenching and drilling engineering verifi-cation,42 pegmatite dykes with lithium,beryllium,niobium,tantalum and rubidium mineralization are dis-covered,and 12 lithium ore bodies are delineated.It is indicated that soil geochemical survey has a good ap-plication effect in the exploration of Rongxuka rare metal deposit.

外文关键词：

Rongxuka rare metal depositsoil geochemistryprospecting predictiongranite pegmatiteDaofu County of Sichuan

作者：

杨元良、王章翔、郭建强、宋祥峰、张人栖、王喻

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作者单位：

四川省第三地质大队,四川成都 611743

四川省地质局郭建强稀有金属深部找矿创新工作室,四川成都 611743

关键词：

容须卡稀有金属矿土壤地球化学找矿预测花岗伟晶岩四川道孚

基金：

四川省科技厅科技计划项目四川省地矿局科技计划项目四川省地质勘查基金项目四川省地质勘查基金项目四川省道孚县容须卡西稀有金属矿普查

项目编号：

2023NSFSC0793SCDKKJXM-201901川国土资函[2013]895号川国土资函[2017]107号川自然资函[2023]324号

出版年：

2024

DOI：

10.19856/j.cnki.issn.1001-5663.2024.01.016

矿产与地质

桂林矿产地质研究院

矿产与地质

CSTPCD

影响因子：0.42

ISSN：1001-5663

年,卷(期)：2024.38(1)

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