湖南江溪垄金锑矿床地质地球化学特征及开发应用

    GEOLOGY AND GEOCHEMISTRY OF JIANGXILONG GOLD-ANTIMONY DEPOSIT IN WESTERN HUNAN PROVINCE

    • 摘要: 湖南江溪垄金锑矿床赋存于新元古界板溪群五强溪组浅变质岩系中.成矿严格受NE向剪切断裂带控制.该矿系金锑共(伴)生矿床.矿体呈陡倾斜的交错脉状产出,沿走向、倾向变化均较稳定.金主要产于近矿蚀变围岩中,毒砂为金的重要载体矿物;锑的富集则与硅化关系密切.矿石为高砷含金锑矿石.以锑为主的选矿试验结果表明,主要回收对象为辉锑矿,并可综合回收金.

       

      Abstract: The Jiangxilong gold-antimony deposit in Western Hunan Province, occurring in the epimetamorphic rock series of Wuqianxi formation, Banxi group, Neoproterozoic, is a cogentic (associated) Au-Sb deposit. The metallogenesis is strictly controlled by NE-trending shear fault zone. The ore-bodies are steeply-dipped crossing veins, stably reappearing in the direction of dip and striking. The gold occurs in the near altered wallrock. Arsenopyrite is the main gold carrier. The enrichment of antinomy is closely related to silicification. The Au-bearing antimony ore is with high As. The result of ore dressing experiment focused on antimony shows that the main recovered mineral is antimonite, with recoverable of gold.

       

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