资源调查与环境2012，Vol.33Issue(4)：229-237,9.
广东始兴良源铌钽铷钨多金属矿床的发现及其意义
Discovery of Liangyuan Nb-Ta-Rb-W-polymetallic deposit in Shixing county,Guangdong Province and its significance
摘要
Abstract
The Liangyuan Nb-Ta-Rb-W polymetallic deposit in Shixing county,Guangdong Province,a deposit with a prospect of large scale,was found during the new-round investigation of tungsten polymetallic ores in the eastern Nanling mineralization zones deployed by China Geological Survey(CGS)in recent years.The new results show that five mineralized types can be recognized in the deposit,namely,greisen-type niobium-tantalum-rubidium-tungsten polymetallic ore,muscovitization albite granite-type niobium-tantalum-tungsten polymetallic ore,quartz vein-type tungsten ore,fractured belt alterated rock-type tungsten tin polymetallic ore and skarn-type scheelite,among them,muscovitization albite granite-type niobium-tantalum-tungsten polymetallic deposit shows the most prospective potential of exploration in this area.From the top level downwards to the deeper of the ore-bearing granite,the following differentiation evolution series are successively observed: porphyritic granite,medium-fine grained biotite granite,medium-fine grained two-mica albite granite,medium-fine grained muscovitization albite granite and greisen.In addition,alteration zoning,including muscovitization,chloritization and potassic alteration,is evidently observed in the ore-bearing granite.The ore bodies mainly occur in greisens,and fine grained muscovitization albite granites,and secondarily in quartz veins.The major ore minerals are scheelite,cassiterite,wolframite,molybdenite,bismuth,stibnite,fergusonite,fluorine-tantalum minerals,columbotantalite,galena,sphalerite,chalcopyrite and pyrite.A preliminary study indicates that the Nb-Ta-Rb-W-polymetallic ore bodies might be originated from the differentiation of deep-seated ore-bearing magma.The Liangyuan Nb-Ta-Rb-W-polymetallic deposit is characteristic of stable-grade, large scale and complex ore-forming elements with a Nb-Ta-Rb-W-Mo-Sn-Bi assemblage,enriched in Be、REE、Ag.The discovery of Liangyuan deposit is not only a breakthrough of prospecting in the eastern Nanling region,but also an important guide in Nb-Ta-Rb-W-polymetallic ore prospecting work in the whole Nanling and even South China.关键词
铌钽铷钨多金属矿床/钠长石花岗岩型/云英岩型/良源Key words
Nb-Ta-Rb-W polymetallic deposit/albite granite-type/greisens type/Liangyuan分类
天文与地球科学引用本文复制引用
肖惠良,陈乐柱,鲍晓明,范飞鹏,周延,吴涵宇,姚正红,武玲,滕龙..广东始兴良源铌钽铷钨多金属矿床的发现及其意义[J].资源调查与环境,2012,33(4):229-237,9.基金项目
中国地质调查局《赣南地区钨多金属矿调查评价》（1212010430335）、《湘赣粤相邻地区钨矿远景调查》（1212010533003）、《广东始兴-连平地区钨钼多金属矿调查评价》（1212010881305）和《广东始兴南山坑-良源地区钨锡多金属矿评价》（1212011120811）项目资助 （）
