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前寒武纪地质发展,祁连裂谷的发育,花岗岩的成岩和演化等对LSS成矿带的形成有重要作用。文章分析了LSS成矿带热液演化、铀矿化空间分布和时间演化规律。提出了碱交代型铀矿属于花岗岩源再平衡混合岩浆热液铀矿床、伟晶状花岗岩型铀矿为多阶段、复成因、多来源铀矿床。总结出LSS成矿带具有两个重要的成矿系列、两类成矿模式。
The Precambrian geological development, the development of the Qilian rift, granitoids diagenesis and evolution play an important role in the formation of LSS metallogenic belt. The article analyzes the evolution of hydrothermal fluids, the spatial distribution of uranium mineralization and the evolution of time in LSS metallogenic belt. It is proposed that the alkali-associated uranium deposit belongs to the granite source rebalancing mixed magmatic hydrothermal uranium deposit, and the Wei Jing-shaped granite uranium deposit is a multi-stage, complex-origin and multi-source uranium deposit. It is concluded that LSS metallogenic belt has two important metallogenic series and two types of metallogenic patterns.