本文根据国内外文献资料,提出前寒武纪富铀矿床的形成与碱交代作用在空间上、成因上蕾切相关的认识,并根据碱性热水溶液的性质将前寒武纪富铀矿床分为钠交代型和钾交代型。同时,简述了两种类型矿床的主要特征,成矿地质条件及机理。 Based on the domestic and foreign literatures, this paper puts forward the understanding that the formation of Precambrian-rich uranium deposit is related to the genesis and genesis of the alkali metasomatism. According to the nature of the alkaline hot solution, the Precambrian-rich uranium deposit is divided into sodium- And potassium interchangeable type. At the same time, the main features of the two types of deposits, the geological conditions and mechanism of metallogenesis are briefly described.