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出 处:《华南地质与矿产》2004年第2期32-34,共3页Geology and Mineral Resources of South China
摘 要:根据目前铋矿床的勘查和开发现状,就铋矿工业指标的定位问题、铋矿工业指标实际应用概况、制定合理的铋矿工业指标在地质找矿中的意义等方面进行了讨论,认为目前执行的《矿产工业要求参考手册》(修订版,1987)对铋矿床的工业指标定位过高,不利于资源的充分利用。考虑到当前国内外铋矿资源的现状、铋矿床地质勘探和铋矿山生产实践,提出了评价铋矿床的建议工业指标:Bi边界品位(0.05~0.10)×10-2,最低工业品位(0.10~0.20)×10-2,矿床平均品位(0.30~0.40)×10-2,矿床综合利用品位(0.045~0.050)×10-2。According to the exploration and exploitation actuality of bismuth deposits,the authors discuss the determination and application of industrial index as well as the significance for enacting rational industrial index for bismuth ores,believe that the present industrial index promulgated in《Reference requirements for mining industry》 is too high and makes against sufficient exploitation of mineral resources. According to actuality of bismuth resources both at home and abroad as well as exploration and production practice of bismuth mines,it is suggesed that the industrial index of bismuth ores as follows: marginal grade 0.05%~0.10%,minimum industrial grade 0.30%~0.4%,and averaging grade for synthetical exploitation 0.045%~0.050%.
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