诸广、贵东花岗岩中碱性地幔流体与铀成矿

本论述了粤北诸广，贵东花岗岩中年龄大于100Ma的两种早期铀矿化特征，并对这两种早期铀矿化进行了对比。第一期铀矿化与碱交代－云英岩化有关，属钾质交代系列；第二期铀矿化与碱交代－绿泥石化有关，属钾，钠混合交代系列。同时，阐述了它们与晚期（小于100Ma)硅化带类型铀矿化的差别，指出早期铀矿成矿与硅化带无关。在此基础上，用烃碱流体成矿理论对两种早期铀矿化的成因进行了分析。

Alkalic mantle fluids and uranium ore-formation in Zhuguang and Guidong granitic massifs

This paper discusses characteristics of two types of uranium mineralization with the ore formation ages of larger than 100 Ma in Zhuguang and Guidong granitic massifs,northern Guandong province,and makes a comparison of the above two types.The first stage of uranium mineralization is associated with alkalic metasomatism greisenization,and can be attributed to potassium metasomatic series,while the second stage of uranium mineratization is associated with alkalic metasomatism chloritization attributed to mixed potassium sodium metasomalic series.Moreover,the author also discriminates the differences of the early uranium mineralization from the late one (<100 Ma) with silicified zone,and emphasizes that the early mineralization has nothing to do with the silicification. On the basis of the above discussion,the author suggests the genesis of the two early stage uranium mineralizations using the hydrocarbon alkalic metallogenic theory.