玢岩型铁矿床尾矿中磷、稀土战略性矿产资源调查与综合利用研究:以安徽凹山矿田为例OA北大核心CSTPCD

The iron oxide-apatite deposit(IOA)is an important source of Fe ores,characterized by the abundant pro-duction of magnetite and apatite.Besides containing a huge amount of Fe ores,this type of deposit is also consid-erably associated with critical element ores,such as P,V,and REE.In the 20th century,most mining operations have only focused on the main minerals(Fe),with less utilization of associated resources in mineral deposits.In this study,systematic drilling sampling,mineral association study,element occurrence state analysis,and compre-hensive utilization study have been performed on the Washan tailing pond at the Washan IOA ore field in eastern China.It is revealed that the primary resources that can be comprehensively utilized in the tailings pond are P and REE,and the main economic mineral is apatite.Preliminary calculations show that the reserves of P and REE in the Washan tailings pond exceed 1.15 million tons and 50000 tons,respectively,which has enormous social value potential and could be further studied and promoted as an example.