广东韶关地区某些花岗岩体含矿性的地球化学研究

本文总结了广东韶关地区某些有矿、矿化和无矿花岗岩在造岩组分、成矿元素钨、微迹元素及其成岩时物理化学条件等方面存在的差异。提出K/Na比值、全岩和黑云母的H_2O~+含量、岩体钨丰度及钨随岩浆结晶分异过程的富集程度、黑云母WO_3含量、微迹元素（Mo、Cu、Ag、Bi）的丰度和统计参数、岩体形成过程中压力、氧化条件的变化等特征均可作为评价该区燕山期花岗岩类含矿性的地球化学指标。

THE GEOCHEMICAL STUDY OF THE ORE-BEARING POTENTIALITY OF SOME GRANITIC INTRUSIONS IN THE SHAOGUAN DISTRICT,GUANGDONG PROVINCE

This paper sums up briefly that the content of rock-forming components, ore-forming element ( tungsten ) , and the minor elements as well as some physico-chemical conditions during magmatic crystallization are diffenent between the productive, ore-bearing and barren granites in this region. On the basis of the above mentioned results, the authors suggested geochemical criteria or signatures for evaluation of the ore-bearing potentiality of the Mesozoic granitic intrusions as follows: (l) the K/Na ratio and tungsten abundance of the granites, (2) H2O+ content in the whole rocks, (3)H2O+ and WO3 contents in the biotites, (4) the abundances and the statistical parameters of some minor elements, and the discriminant functions based on the element contents, (5) the variation ranges of the tungsten content, the pressure and the oxidation intensity during magmatic fractional crystallization.