红土型金矿床金的特征研究

蛇屋山金矿为我国发现的第一个红土型金矿床，本文报道了该矿床金的特征的研究结果。运用电子探针、分析型透射电子显微镜等电子显微技术，查明矿床中金矿物的形态，颗粒大小以及化学成分等特征。

Study on Characteristics of The Gold in The Lateritic Gold Mine

Shewushan is the first lateritic gold mine discovered in China.This paper reports the behavior of gold in the deposit according to the study with EPMA and AEM.It is mainly in submicro particles adsorbed at the crystal rims of clay mineral kaolinite and illite,or in micro particles included within limonite,little amount of gold is in the adsorbed phase of limonite.All the gold particles are native gold mineral with very high fineness according to EDS and EPMA analyses. Further study indicates that the gold particles within clay mineral are mechanical mixture or physical adsorbed at the crystal rims.