华南铀矿床成矿条件及其对金矿的找矿意义

众所周知,铁镁质类岩石—绿岩系、中基性岩浆岩等,是最重要的含金源岩;酸性岩(包括酸性岩浆岩和沉积—变质岩等)是最重要的含铀源岩。成矿元素的予富集作用是形成矿床的重要条件。予富集作用又可分为地层、岩体和蚀变予富集。利用金、铀的不同特征,对金的找矿评价具有一定作用。

THE METALLOGENETIC SETTINGS OF THE URANIUM DEPOSITS IN SOUTH OF CHINA AND THEIR IMPLICATION IN THE OREFIND ING OF AU DEPOSITS.

Mafic rocks (such as greenstone series, intermidiate-basic magmatic rocks etc.) are the most important source rock of gold. Acidic rocks (such as acdic magmatic rocks and sedimentary metamorphic rocks) are the most important source rocks of Uranium. Preconcentration of ore-forming elements is important to valuable enrichment of goid and uranium, It ean be divided into three types ie. preconcentration in some strata, preconcentration in some massives and preconcentration by certain alterations.