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在勘探工作的各个阶段上(选择初勘对象,将储量划分为表内矿和表外矿,合理地开发已探明的储量)的矿床评价问题,都与矿石工业品位指标的确定有密切的联系.目前,批发价格仍然是确定矿石品位指标的经济依据.根据这个原则,开采能有盈利的储量,即在工业利用的一定期间能回收基建投资的矿产资源,才算作表内矿量.但是经验证明,根据批发价格确定矿石品位指标的做法,往往导致不良的后果.例
The evaluation of mineral deposits at various stages of exploration (selecting objects to be initially surveyed, dividing reserves into surface and off-site mines and developing proven reserves rationally) is closely related to the determination of industrial grade indicators of ore industry At present, the wholesale price is still the economic basis for the determination of the grade of ore, according to which the mining of profitable reserves, that is, the recovery of mineral resources for infrastructure investment during a certain period of industrial utilization, can be regarded as intra-ore mineral content. However, experience shows that determining the grade of ore based on the wholesale price often leads to undesirable consequences.