东升庙硫多金属矿深部氧化带微粒研究  

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

作　　者：袁雪玲[1,2] 曹建劲[1,2] 赖佩欣[1,2] 吴政权[1] 王正海[1,2] 曾键年[3] 吴亚飞[3] 

机构地区：[1]中山大学地球科学系 [2]广东省地质过程与矿产资源探查重点实验室 [3]中国地质大学(武汉)资源学院

出　　处：《金属矿山》2013年第3期104-107,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:41030425;41072263;40773037;40673044);国家高技术研究发展计划(863计划)项目(编号:2008AA06Z101)

摘　　要：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。Transmission electron microcopy（TEM） had been used to analyze particles of the deep oxidized zone col- lected from Dongshengmiao polymetallic sulfide deposit in the Inner Mongolia, and oxidation process and source of oxidized particles had been discussed. The resuhs 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.

关 键 词：硫多金属矿床 氧化微粒 TEM分析 氧化过程 来源 东升庙 

分 类 号：P618.205[天文地球—矿床学]