基于野外地质调查的赣州宁都地区非矿区花岗伟晶岩型锂辉石矿床成矿潜力分析  

作　　者：胡阳璇 喻飞 罗仙华 梁文剑 陈宁 

机构地区：[1]江西省地质局第七地质大队,江西赣州341000

出　　处：《科技创新与应用》2024年第7期111-114,118,共5页Technology Innovation and Application

摘　　要：锂辉石矿物作为锂元素的重要来源,在工业生产与科技发展中扮演着越来越重要的角色。花岗伟晶岩作为含锂矿物的重要载体,是对锂矿床成矿潜力分析的首要前提。基于野外地质调查,并结合前人总结的构造及矿物蚀变标志对江西赣州宁都地区将军坳-青塘、坪步岭-东家排及石上-黄石地区的非矿权区域出露的花岗伟晶岩脉以及锂辉石矿物进行实地调查分析。36条野外地质调查路线显示,坪步岭-东家排地区的花岗伟晶岩脉出露广泛,脉体宽且延伸较远,且裂隙交互发育,地球化学分析显示岩脉部分样品中Li元素品位大于1%,可作为良好的锂矿床产出点。岩脉中锂辉石矿物的发现标志着宁都地区出露的花岗伟晶岩脉具有良好的成矿能力。石上-黄石和将军坳-青塘2个调查区域的野外地质调查与Li元素品位显示成矿潜力较小或不成矿。As an important source of lithium,spodumene minerals play a more and more important role in industrial production and the development of science and technology.As an important carrier of lithium-bearing minerals,granite pegmatite is the primary prerequisite for the analysis of the metallogenic potential of lithium deposits.Based on the field geological survey,combined with the structural and mineral alteration marks summarized by predecessors,the granite pegmatite veins and spodumene minerals exposed in the non-mineral right areas of Jiangjun'ao-Qingtang,Pingbuling-Dongjiapai and Shishang-Huangshi areas in Ningdu area of Ganzhou,Jiangxi Province were investigated and analyzed.36 field geological survey routes show that the granite pegmatite veins in Pingbuling-Dongjiapai area are widely exposed,the veins are wide and extended far away,and fractures are interactively developed.Geochemical analysis shows that the grade of Li element in some dike samples is more than 1%,which can be used as a good occurrence point of lithium deposit.The discovery of spodumene minerals in dikes indicates that the exposed granitic pegmatite dikes in Ningdu area have good ore-forming ability.The field geological survey and Li element grade in Shishang-Huangshi and Jiangjun'ao-Qingtang survey areas show that the metallogenic potential is small or non-metallogenic.

关 键 词：野外地质调查 花岗伟晶岩 锂辉石 成矿潜力 宁都 

分 类 号：P618.71[天文地球—矿床学]