通化岗山岩体地质特征及找矿前景

Geological features and prospecting potential of Gangshan rock mass in Tonghua

岗山岩体位于吉林通化大川一带,出露岩性为早白垩世碱长花岗岩。通过近几年详细的野外地质调查,岗山岩体过渡相、边缘相中发现了铌钽矿化体;同时通过人工重砂及电子探针测试分析,确定了含铌钽的矿物为黑稀金矿,为选矿提供了依据。该区具有极好的铌钽等稀有稀土金属矿找矿前景。

Gangshan rock mass is located in Dachuan area, Tonghua of Jilin Province, the exposed lithology is early Cretaceous alkali feldspar granite.Through detailed field geological investigation in recent years.the Nb-Ta mineralization body was found in transitional and marginal phases of Gangshan rock mass.At the same time, through artificial heavy sand and electron probe test analysis, it is determined that the Nb-Ta-bearing mineral is euxenite, which provides the basis for mineral processing. This area has a good prospect for prospecting rare earth metals such as Nb-Ta and so on.