柿竹园钨锡钼铋多金属矿主要矿石矿物扫描电镜分析

发布时间：2018-06-29 05:22

本文选题：柿竹园钨锡钼铋矿体 + 显微观察　；参考：《中国矿业》2017年01期

【摘要】：柿竹园钨锡钼铋多金属矿位于南岭东西向构造带的中段北侧,是东坡矿田中重要的多金属矿床之一。通过显微观察和扫描电镜能谱分析研究手段,对该矿床的主要矿石的物质组成、矿物成分特征及微观特征进行了探讨。扫描电镜能谱分析显示柿竹园主要矿石矿物包括白钨矿、辉钼矿、辉铋矿、黑钨矿等;柿竹园矽卡岩型矿石中的部分白钨矿具有环带结构特征,每个环带的化学成分不渐变且变化较大,Mo含量的不同是造成环带的主要因素。辉钼矿、辉铋矿等矿物分布广泛且紧密共生,主要以细粒浸染状分布于萤石、石英、长石颗粒间,形成晚于磁铁矿和白钨矿。黑钨矿呈它形粒状结构分布,被白钨矿包裹呈包含结构,具有定向性,与非金属矿脉方向一致。
[Abstract]:Shizhuyuan tungsten, tin, molybdenum and bismuth polymetallic deposit is located in the north of the middle section of the east west trending structural belt in Nanling, and is one of the important polymetallic deposits in the Dongpo ore field. By means of microscopic observation and energy dispersive analysis of scanning electron microscope, the material composition, mineral composition and microscopic characteristics of the main ore of the deposit are discussed. SEM analysis showed that the main ore minerals in Shizhuyuan are scheelite, molybdenum, bismuth, wolframite, etc. The chemical composition of each ring does not change gradually and the content of Mo varies greatly. Molybdenum, bismuth and other minerals are widely distributed and closely symbiotic, mainly distributed in fine disseminated form between fluorite, quartz and feldspar, forming later than magnetite and scheelite. Wolframite distributes in the shape of granular structure, and is enclosed by scheelite, which is orientated and consistent with the direction of nonmetallic vein.
【作者单位】：国土资源实物地质资料中心;
【基金】：地质调查项目“地质资料信息化与社会化服务”子项目“全国实物地质资料汇聚整理与服务”资助(编号:121201013000150002)
【分类号】：P618.2;P575

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