摘要
河南禹州地区晚石炭世本溪组蕴藏着丰富的铝土矿资源,其中伴生的镓具有巨大的潜在经济价值。在对研究区铝土矿野外地质调查和室内地化分析基础上,总结了镓的分布规律,探讨了其控制因素。研究表明,在不同铝土矿区的岩石中镓的平均质量分数总体上呈南高北低,在矿体平均厚度最大的P10地区,矿石中的镓高度富集。含矿岩系中镓的分布和铝土矿的关系密切,镓的高值比铝土矿高值的产出层位略低。由于成矿条件不同,造成镓和铝的沉积与分异。由于镓化学性质比铝更活跃,在偏碱性海水影响下,镓优先铝沉积下来,造成镓比铝优先富集。
Abundant bauxite resources exsist in Late Carboniferous Benxi Formation, Yuzhou area of Henan province, and its associated Gallium has high potential economic value. The distribution of Gallium was summarized and its controlling factors were discussed by the field geological investigation and geochemical analysis of bauxite resources in laboratory. The study showed that the average contents of Gallium varied considerably in bauxite bearing rocks of different mines and there was a gen- eral tendency of high content in the south area and low contentin the north area. The highest content of Gallium appeared in the P10 area with the largest rock thickness. The distribution of Gallium had much to do with that of bauxite. The occurrence posi- tion of high content of Gallium appeared to be lower than that of bauxite in the profile. The deposition and differentiation of Gallium and Aluminum were caused by different mineralize conditions. The priority deposition and enrichment of Gallium over Aluminum were controlled by the more active chemical property of Gallium under the influence of alkalescent sea water.
出处
《矿业研究与开发》
北大核心
2017年第4期103-108,共6页
Mining Research and Development
关键词
铝土矿
镓
分布规律
地球化学特征
禹州地区
Bauxite ore, Gallium, Distribution rules, Geochemical characteristics, Yuzhou Area
