东升庙硫多金属矿深部氧化带微粒研究

采集内蒙古东升庙硫多金属矿床深部氧化带微粒，进行透射电子显微镜分析，并对氧化微粒的形成过程和来源进行了探讨。结果表明：氧化作用能形成纳米微粒，主要包括自然Ag、石英、针铁矿等。微粒形态各异，大小在几纳米到几百纳米不等，一般呈聚合体存在，组成元素一般以高价态存在，这与氧化带的氧化环境一致。不同氧化带因地质环境和氧化条件不一样，形成的微粒种类有差异。

Research on Particles of the Deep Oxidized Zone of Dongshengmiao Polymetallse Sulfide Ores

Transmission electron microcopy(TEM) had been used to analyze particles of the deep oxidized zone collected from Dongshengmiao polymetallic sulfide deposit in the Inner Mongolia，and oxidation process and source of oxidized particles had been discussed.The results showed that oxidized particles formed by oxidation are mainly composed of native silver，quartz，goethite particles，etc.In general，they are in the state of aggregations with various crystalline forms，the size of which ranges from few nanometers to several hundred nanometers.Their constituent elements exist in high valence，which are in consistent with oxidizing environment of the deep oxidized zone.The types of particles are different at different oxidized zones because of different geological environment and oxidizing conditions.