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金矿中特高品位样品的处理问题,多年来在金矿储量计算中是一个有争论的问题. 有的矿区规定,凡是大于平均品位12～15倍的特高品位要删去,有的则按格拉布斯公式进行取舍.这些处理方法的共同之点就是要把特高品位删去,这主要是由于采用算术平均值来计算矿块品位所引起的.一个特高品位的影响要相当于20～30个一般品位的数据.如果不删去,将使平均品位增加1～2倍.一般认为这是一种偶然现象,不能代表矿体的真实情况,就将它删去了.简单的推理看来好象是正确的,因此这种处理方法也就沿用了很多年.
The treatment of extra-high-grade samples in gold mines has been a controversial issue for gold reserves calculation over the years. Some mines provide that any extra-high grade that is greater than 12-15 times the average grade should be deleted, and some According to the Grubbs formula to choose the common point of these treatments is to cut the extra high grade, mainly due to the use of arithmetic average to calculate the grade of the nuggets caused by an extra high-grade impact should be equivalent to 20 to 30 general grade data.If not deleted, will increase the average grade of 1 to 2 times.Generally think this is a coincidence, can not represent the real situation of the ore body, it will be deleted. Simple Reasoning seems to be correct, so this approach has been used for many years.