摘要
黄地脑锂矿是近年来鄂南地区发现的一处小型锂矿床,位于幕阜山岩体北缘、方山背斜核部。前期通过在黄地脑矿区开展预查工作,发现了5个浅表锂矿化体,但深部找矿效果不佳;随着邻区万家岭和金银山矿区均在近EW向F_(9)断裂中取得较好的锂矿找矿成果,按照近EW断裂控矿的思路,在黄地脑矿区开展普查工作,对矿区地球化学异常进行重新分析,实施槽探和钻探工程,取得较好的找矿进展。黄地脑锂矿属构造蚀变岩型锂矿,受控于近EW向F_(9)及次级断裂,矿体呈脉状产出,围岩蚀变以硅化、褪色化、绿泥石化、黄铁矿化为主。综合分析认为,已知矿体的深部、F_(9)等断裂东延地段和化探工作圈定的其他异常区是成矿有利地段,值得开展进一步找矿工作。
The Huangdinao lithium deposit is a small scale lithium deposit discovered in recent years in the southern Hubei Province,located on the northern margin of the Mufushan pluton and the core of Fangshan anticline.In the early stage,through preliminary exploration work carried out in the Huangdinao mining area,five shallow-lying lithium ore bodies were discovered,but the deep-seated prospecting results were not satisfactory.With good lithium ore prospecting achievements obtained in the EW trending F_(9) fault in the adjacent Wanjialing and Jinyinshan mining areas,following the idea that the EW trending faults control ore-formation,general survey work was carried out in the Huangdinao mining area.The geochemical anomalies in the mining area were re-analyzed,and trench and drilling projects were implemented,achieving good prospecting progress.Huangdinao lithium deposit belongs to tectonic altered-rock type lithium deposit,which is controlled by EW trending F_(9) and secondary faults.The ore bodies are veined output,and the wall-rock alterations are mainly silicification,bleaching,chloritization and pyritization.Comprehensive analysis shows that the deep parts of the known ore bodies,the east-extending sections of F_(9) and other faults,as well as other anomaly areas delineated by geochemical exploration work,are favorable metallogenic areas and worthy of further prospecting work.
作者
罗少波
尹近
李晶
刘红亮
石德强
张文胜
赵子良
陈权
旦增平措
Luo Shaobo;Yin Jin;Li Jing;Liu Hongliang;Shi Deqiang;Zhang Wensheng;Zhao Ziliang;Chen Quan;Danzengpingcuo(Fourth Geological Team of Hubei Geology Bureau,Xianning 437100,China;Hubei Key Laboratory of Resource and Eco-Environmental Geology,Wuhan 430034,China;Hubei Geological Exploration Fund Management Center,Wuhan 430071,China)
出处
《资源环境与工程》
2025年第6期695-702,共8页
Resources Environment & Engineering
基金
湖北省地质勘查基金项目“湖北省崇阳县黄地脑矿区锂锑矿普查”(〔2023〕5)。
关键词
锂矿
构造蚀变岩型
找矿方向
勘查新进展
lithium deposit
tectonic altered-rock type
prospecting direction
new exploration progress
