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通过对马泉金矿床主体(三、四号矿带)及外围矿带矿石品位分布资料的研究后认为:四号矿带金品位高于三号矿带,夹石含量少于三号矿带,易选矿石多于三号矿带,因而矿石质量优于三号矿带;外围矿带品位低于矿床主体品位,以低品位矿石为主。通过对矿石品位分布直方图(数学模型)的偏度系数和峰度系数概率(>95%)假设检验后认为:矿床主体品位分布概率曲线基本符合对数正态分布规律。通过对矿床平均品位算术平均值和变异系数的研究后认为:矿床属品位均匀型矿床,建议矿床的氧化矿石边界品位为0.5×10-6;原生矿石边界品位为1.0×10-6;特高品位下界为29.0×10-6。
Based on the study of the ore grade distribution data of the main bodies of Maquan gold deposit (No.3 and No.4 ore belts) and the peripheral ore belts, it is concluded that the gold grade of No.4 ore belt is higher than that of No.3 ore belt, and the content of sandstone is less than that of No.3 ore belt , More than easy to choose more ore ore belt No. 3, so the ore quality is better than the No.3 ore belt; the outer ore grade is lower than the main ore grade, low grade ore. After the hypothesis of the skewness coefficient and kurtosis coefficient (> 95%) of the histogram (mathematical model) of the ore grade distribution hypothesis test, it is considered that the probability distribution of the principal grade distribution of the ore body basically meets the logarithm normal distribution law. By studying the arithmetic average and variation coefficient of the average grade of deposit, it is concluded that the ore deposit belongs to the homogeneous grade ore deposit, the oxide ore grade of the proposed deposit is 0.5 × 10-6, the primary ore grade is 1.0 × 10-6, Grade lower bound is 29.0 × 10-6.