岩浆冷凝成岩阶段的氧逸度与华南热液型铀矿的成矿类型

文章根据多年积累的资料,着重分析了岩石氧化系数与岩浆冷凝成岩阶段的氧逸度以及与岩石铀含量之间的关系,得出岩浆冷凝成岩阶段的氧逸度,是造成华南以酸性岩浆岩为成矿母岩的铀矿床成矿类型差异的主因的结论.从理论上找出了各类型铀矿之间的内在联系,深化了成矿机理的认识,确认了华南存在岩浆热液型铀矿的可能性.

The Oxygen Fugacity of Magma in Condensed Diagenesis and the Hydrothermal Uranium Mineralization Type in South China

According to the information accumulated over the years, this paper analyzed the rela- tionship between the oxidation coefficient of rock and the oxygen fugacity of magma in condensa- tion diagenesis and their affection to uranium content in rocks and found that the oxygen fugacity of magma in condensing diagenesis was the main cause of different types uranium mineralization for those deposits derived from acidic magmatic rocks as source rock, which identified the intrin- sic theoritical link among the various types of uranium mineralization, deepen the understanding of the mechanism of mineralization and clarify the possibility of the existence of magmatic hydro- thermal type uranium deposits in South China.