赣南白面石地区铀资源潜力分析

白面石地区有着得天独厚的铀成矿地质背景,区内铀矿化是在富铀的白面石花岗岩体基础上发展起来的。富铀基底花岗岩的风化,使铀活化迁移,形成高铀含量砂岩层,是该区成矿的基础;北西向展布的双峰式火山岩浆喷溢、形成覆盖在高铀含量砂岩层之上的火山岩层,起着热盖和封闭作用,使铀聚积成矿,是成矿的关键;后期断裂作用及次火山岩的贯入,带来了丰富的热能,使铀再次活化迁移,铀矿化叠加变富。

Study on Uranium Resource Potential of BaiMianshi Area in South Jiangxi Province

Baiminshi area has unique uranium metallogenetic setting where uranium mineralization was developed upon U - rich Baimianshi granitoid body. The weathering of U - rich basement granite reactivated and migrated uranium to form high uranium content sandstone bed which is the foundation of uranium metallogenesis. NW- trending volcanics of duplex peaks overcovers the high uranium content sandstone bed and play a key role as thermo- cover so as to make uranium gathering rich and form mineralization, subsequent fault action together with the penetration and intrusion of subvolcanic rock brought more heat which migrated uranium one more time, as the result enriched uranium mineralization was formed.