摘要
用原子吸收、原子荧光法分别系统测定矿石Au、Te含量表明 ,东坪金矿具有典型的Au -Te元素组合。Te/Au比值平均为 0 .71,且随矿石Au丰度的加富而增加 ,它们的相关系数增大。Au、Te含量对数值的统计分布差异和矿物组合、元素赋存状态的微束分析结果表明 ,Au、Te均以独立矿物为主要赋存状态 ,但Au的矿化表现出多期次特征 ,而Te主要在硅化 -硫化物阶段 ,二者可能具有不同的母源。上述结论对提高金的回收率。
The analysis of ores with AAS and XFS prove that the Dongping gold deposit is characterized by association of Au and Te. With the increase of Au, the correlation value of Au and Te as well as their ratio increases gradually, with an average of Te/Au of 0.71. Statistical logarithm models and occurrence show that both Au and Te occur mainly in minerals, which indicate that Au and Te are enriched at different stage. Au mineralization features multi-stage enrichment, whilst Te is enriched at the silicification-sulfidation stage. Au and Te derived from different source. The studies are conducive to improving recovery of gold and tellurium and to tracing orebodies.
出处
《地质与勘探》
CAS
CSCD
北大核心
2001年第3期24-28,共5页
Geology and Exploration
基金
国家自然科学重点基金项目!(496 33110 )资助
