鄂西地区某脉石英中流体包裹体特征分析

Zhang Li,Hu Xiuquan, Zhang Jin,You Dahai, Li Guodong,Zhang Chaohong

Kuangchan zonghe liyong(2023)

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Abstract
这是一篇工艺矿物学领域的文章.高纯石英砂作为高档石英制品的主要原料,对杂质元素含量要求严格,其中包裹体赋存状态对其纯度及性能有重要影响.据此,对鄂西某脉石英矿中包裹体采用X射线衍射、等离子体原子发射光谱、光学显微镜、显微测温和激光拉曼光谱等多项分析方法,进行了详细的研究.结果表明:矿石中SiO2含量>99.9%,杂质元素主要为Al和部分碱金属元素;矿石中包裹体为单相盐水溶液包裹体、气液两相包裹体和含CO2三相包裹体,无固相包裹体.包裹体大小主要集中在5~25 μm,均一温度为160~270℃,盐度小于10.00%NaCl,成矿流体属中低温、低盐度流体.根据包裹体特征分析结果,经过深加工提纯后,矿石可用作高纯石英砂原料.
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Key words
process mineralogy,vein quartz,fluid inclusions,uniform temperature,salinity,ore-forming fluid,high-purity quartz
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