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基金项目:安徽省地质矿产勘查基金项目“安徽省金寨县迎峰崖铅锌矿多金属矿详查”(2014-DZ-04)
作者单位
王西荣,张青,郭甲一,等  
摘要:
      为查清安徽金寨迎峰崖含金银富铅锌多金属矿矿区内矿石的物质组分及矿物嵌布特征,采用化学多元素分析、光片和薄片镜下鉴定、X射线衍射分析以及单矿物组分分析等方法,对矿石的物质组分、矿物的嵌布特征进行分析测试。结果表明,矿石中主要矿物为方铅矿、闪锌矿、黄铜矿、黄铁矿、石英等。方铅矿、闪锌矿以包裹嵌镶或黏连镶布为主,细小的方铅矿与其他矿物毗邻,交代成因的闪锌矿呈融滴状分布于被交代矿物之上。Au充填于黄铁矿晶隙中;Ag在方铅矿中富集,主要以化合物形式存在;闪锌矿中有害组分Cd(2 697 mg/kg)严重超标,其他有害组分为Fe、S、As等。矿石矿物颗粒粒度以中粗粒为主。研究结果可为矿物分离及后期的开发利用提供参考。
关键词:多金属矿  X射线衍射分析  物质组分  嵌布特征  交代作用  安徽金寨
Abstract:
      In order to find out the material components and their distribution characteristics of the ore in the gold-silver lead-zinc-rich polymetallic deposit in Yingfeng Cliff, Jinzhai County, Anhui Province, the methods of multi-component element analysis, polished and thin section microscopic identification, X-ray diffraction analysis and single mineral component analysis were used to analyze and test the material components, nested embedment and distribution characteristics of the ore. The results show that galena, sphalerite, chalcopyrite, pyrite, quartz and so on are the main components in the ore. Galena and sphalerite are mainly encrusted or encrusted with adhesion. The fine galena minerals are adjacent to other minerals, and the metasomatic sphalerite is distributed on the metasomatic minerals in the form of melt droplets. Au is filled in the crystal gap of pyrite. Ag is enriched in galena and mainly exists as compounds. The harmful component of sphalerite is Cd (2 697 mg/kg), which is seriously exceeding the standard. Other harmful components include Fe, S, As and so on. The mineral particle size of the ore is mainly medium coarse grain. The process mineralogy research can provide a reference for the separation and later development and utilization of minerals.
Keywords:polymetallic ore  X ray diffraction analysis  material composition  embedding characteristic  metasomatism  Jinzhai, Anhui
王西荣,张青,郭甲一,等.安徽金寨迎峰崖含金银富铅锌多金属矿工艺矿物学研究[J].地质学刊,2023,47(1):1-7