多金属矿床工业指标的制定-以中国北方某特大型铜钼矿床为例

多金属矿床工业指标特征的研究表明, 不宜采用单一金属矿床工业指标的制定方法, 必须考虑各种有用金属综合回收的总价值, 制定组合工业指标, 并以此进行各种品位指标的计算。以中国北方某特大型铜钼矿床为例, 介绍了其多金属矿床边界品位、块段最低工业品位、矿区最低平均品位、最小可采厚度和夹石剔除厚度等工业指标的制定过程, 并指出随着企业内部条件和外部环境的变化, 工业指标应是一个动态的标准, 可以修定和优化原有的工业指标。应重视和推广应用地质统计学方法计算储量, 依据市场的变化实行储量和工业指标的动态管理。

Establishment of industrial index in polymetallic deposit: taking an oversize copper-molybdenum deposit in North China for example

The establishment of industrial index in polymetallic deposit is not suitable to adopt single method according to the various characteristics of the index. The total value ofmetal comprehensive recoverymust be considered to establish industrial index and to calculate other grade indexes. The authors take an oversize copper-mo- lybdenum deposit in North China for example, present the establishing process of the cutoff grade in polymetallic deposit, the lowest industrial grade in block section, the lowest average grade in mining area, the minimal mineable thickness and rejecting thickness of dunn bass, and point that the industrial index is a dynamic standard along with the movement of internal conditions and external circumstances in corporations, and the original industrial index can be repaired and optimized. Geological statistics should be emphasized and popularized in accounting reserves, and dynamic management should be imp lemented in reserves and industrial index according to the changes ofmarket.