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普通金属矿床普遍采用,由边界品位和最低工业品位组成的“两项品位指标体系”.而金价昂贵和金在矿石中的品位具剧烈跳跃特性,由此金矿特别是脉金则一直沿用,边界工业品位、块段最低工业品位和矿区最低工业品位的“三项品位指标体系”.近年来我院有较多机会接触有关金矿品位工业指标的确定问题,现就金矿“三项品位指标”的确定方法特别是块段最低工业品位的选优作一简要介绍.
Ordinary metal deposits commonly used by the boundary grade and the lowest industrial grade composition of the “two grade index system.” And expensive gold and gold in the grade of the ore with a dramatic jump characteristics, which gold especially the pulse has been used, Border industrial grade, block the lowest industrial grade and mine the lowest industrial grade “three grade index system.” In recent years, our hospital have more opportunities to contact the gold ore grade industrial indicators to determine the problem, is the gold “three grades Indicators ”to determine the method, especially the lowest block of industrial grade selection of a make a brief introduction.