从地质学观点来看，矿床的开采价值取决干其质量、数量以及它的“商业价值”，即：影响开采成本的矿床赋存条件。选别回采的意义在于尽可能充分地回收有用矿物。开采时，只能回采矿体的一部分，这就造成了损失。超爆围岩则产生贫化。而选矿过程中还有一部分有用矿物混杂在尾砂 From a geological point of view, the value of a deposit depends on its quality, quantity and its “commercial value,” ie, the deposit conditions that affect mining costs. The significance of sequestration is to recover useful minerals as fully as possible. When mining, only a portion of the orebody can be recovered, resulting in losses. Super-blast rock is depleted. The beneficiation process there are some useful minerals mixed in the tailings