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贵州504矿床铀矿化特征及控矿因素分析
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摘要
504矿床是贵州省碳酸盐岩中唯一具有工业价值的铀-汞-钼多金属矿床。在野外调查和收集整理前人资料基础上,从铀矿体空间定位、矿体特征、矿石特征、围岩蚀变、铀的存在形式、铀与某些化学成分及元素的关系、成矿年龄等方面对铀矿化特征进行了深入的分析和总结,认为铀矿化受F_1、F_2控制,与黑色蚀变等多种蚀变关系密切,产于一定层位;控矿因素主要是断裂构造、岩性-构造组合、围岩蚀变以及有机质。根据该矿床外围找矿工作结果并结合对控矿因素的分析,指出下一步工作应探索矿床深部的成矿潜力。
        Deposit 504 is uranium-mercury-molybdenum polymetallic deposit,which is the only one with industrial value in carbonate rock in Guizhou.Based on field survey,collection and complication of previous data,this paper makes a deep analysis and summary on the uranium ore body space location,characteristics of ore,wall rock alteration and existing form of uranium,relationship between uranium and some chemical composition and elements,mineralization age.It is believed that uranium mineralization is produced in the specific strata which controlled by F_1 and F_2,and closely associated with the black alteration and other alterations.The ore-controlling factors are mainly fractural structure,lithology and fault combination,wall rock alteration and organic matter.According to the results of exploration in the periphery of the deposit and analysis of ore-controlling factors,next efforts should be the exploration of metallogenetic potentiality in the deep.
引文
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