Study on Mineral Discharge Mechanism of Granite Type Uranium Deposits in South China Uranium Metallogenic Province

Although granite-type uranium deposit is the most important one in south China uranium metallogenic province,study on the mineral discharge of uranium metallogenisiswas relatively weak.By studying the regional geological background of uranium metallogenisis,characteristics of uranium-bearing granite,spatial and temporal distribution characteristics of granite type uranium deposit in the metallogenic province,we summarized the deposit arrangement and ore-body spatial distribution characteristics of different uranium deposits,and found that the rapid descent of temperature,pressure and turbulent velocity of mineralization solution,the reduction and addition of new materials(mineralizers)are the important factors to control the mineral discharge mechanism for the formation of granite type uranium deposits in south China.Different types uranium deposits have their main mineral discharge mechanism but not the only one,there may be many mineral discharge mechanisms in the formation of uranium deposits. It is helpful to analyze the possible discharge space and study the mineral discharge mechanism of uranium-bearing granite in expanding prospect space and deploy further exploration.