湖南仁里铌钽稀有多金属矿床经济价值及其找矿启示

铌钽锂等稀有金属资源是新兴产业所需要的功能材料和结构材料,具有重要的意义。近年来,湖南省核工业地质局三一一大队在湖南省平江县发现的仁里超大型铌钽稀有多金属矿床,含有丰富的铌钽等稀有金属资源及长石、云母等非金属资源,探获Ta_2O_5资源量10791 t、Nb2O5资源量14057 t。矿体规模大(长505～2040 m、平均厚度3. 04～3. 49 m),品位富(Ta_2O_5平均品位0. 036%、Nb2O5平均品位0. 047%),易选冶,综合利用率高(达89. 60%),矿山开采可实现无尾矿,潜在经济价值超1500亿元。仁里矿床的发现极大的促进了区域稀有金属找矿工作,对湖南乃至华南地区稀有金属高效勘查与绿色开发将起到积极的示范作用。

Economic value of Renli rare polymetallic deposit in Hunan Province, and its prospecting revelation

Rare metal resources ,such as Nb, Ta, Li is the functional materials and structural materials for strategic emerging industries,it has important strategic significance.The Renli super-large Nb-Ta rare polymetallic deposit in Pingjiang County,Hunan Province ,which was discovered by 311 Brigade of Hunan Nuclear Industry Geological Bureau in recent years, is rich in Nb-Ta rare metal resources and feldspar- mica nonmetal resources,in which the reserves of Ta₂O₅ is 10791t and the reserves of Nb₂O₅ is 14057t.The ore body,which is large in scale(The length is 505~2040m and the average thickness is 3.04 ~ 3.49m)and rich in grade(The average grade of Ta₂O₅ is 0.036% , Nb₂O₅ is 0.047%) ,and also easy to be beneficiated and smelted, has high comprehensive utilization rate (up to 89.60%).The mine can achieve no tailing in mining and the potential economic value exceeds 150 billion yuan.Discovery of Renli deposit has greatly promoted prospecting for rare metal in region, which will play a positive demonstration role in efficient exploration and green development of rare metals in Hunan and even South China.