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湘桂地区属中新生代构造-岩浆活化区,铀成矿作用明显地受中新生代构造-岩浆活化作用的控制。区内铀成矿的主要特征是有一定的成矿系列及矿床类型组合,含矿主岩多样,成矿富集作用具多阶、多源和多成因的多因复成性,成矿时期的一致性。以及成矿大地构造背景演化的同一性。据此,提出了累积递增成矿的演化模式,认为现今工业铀矿床的形成,是从成岩期前和成岩期的原始初步富集,到成岩期后各种成因的后生叠加富集作用,先后是累积递增的成矿过程。并提出今后区域找矿的方向。
The Hunan-Guangxi region belongs to the Mesozoic-Cenozoic tectono-magmatic activation zone, and the uranium mineralization is obviously controlled by Meso-Cenozoic tectono-magmatic activation. The main features of uranium metallogenesis in the area are that there are certain metallogenic series and types of ore deposits, the ore-bearing host rocks are diverse, and the metallogenetic enrichment has multi-genesis, multi-genesis and multiple genesis, Consistency. As well as the identity of the evolution of the tectonic setting of the metallogenic earth. Accordingly, the evolution model of cumulative mineralization is proposed. It is considered that the formation of industrial uranium deposits from the initial primary enrichment before diagenesis and diagenesis to the epigenetic superposition and enrichment of various genesis after diagenesis. Is a cumulative mineralization process. And put forward the prospect of prospecting in the future.