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新疆东天山发现铅矿化,通过镜下鉴定、X射线衍射和人工重砂分析发现:单偏光下铅黝帘石粒径细小,与斜长石、石英和褐锰矿共生,颜色多样,但均带红色调,以红褐色为主,难以分离出单矿物;电子探针分析结果显示,铅黝帘石中PbO含量变化大,最高为30.90%,最低为10.11%,与其颜色无直接关系。结合野外工作与室内综合鉴定推测该区铅黝帘石为火山热液成因,与构造岩浆活动有关。
Lead mineralization was found in the eastern Tianshan Mountains of Xinjiang. Through the microscopic identification, X-ray diffraction and artificial sand analysis, it is found that the single-polarized lead zoanthere is small in grain size and symbiotic with plagioclase, quartz and brown manganese ore, Reddish brown and mainly reddish brown, it is difficult to separate single minerals. The results of electron probe analysis showed that the content of PbO in lead zoisite changed greatly, the highest was 30.90% and the lowest was 10.11%, which had no direct relationship with its color. Combined with the field work and indoor comprehensive appraisal, it is speculated that the lead zoisite in this area is the genesis of volcanic hydrothermal, which is related to tectonic magmatism.