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简介了岩金矿床出现特高品位的原因；探讨了岩金矿床在进行品位指标优化时，一种计算矿床平均品位的新方法。
This paper briefly introduces the reason why super high grade occurs in the Yan gold deposit, and discusses a new method to calculate the average grade of the ore deposit when the grade index is optimized in the rock gold deposit.