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世界统计资料证明,对于大多数金属矿物来说,数十个小型矿山就相当于一个大型矿山。所说大型、小型采选企业之间的关系,也是不断变化的,这取决于经济、工艺、社会和其它一些因素。例如,在60～70年代,形成一种趋势:即优先发展大型企业,所以尽量寻找和勘探大型矿床,也就是我们国家所说的“硕体”矿床。但是若干年以后,由于这种矿床有用成分含量较低,需要大量投资用以进行勘探和工业开发,某些有色和稀有金属价格下降,相
World statistics prove that for most metal minerals, dozens of small mines are equivalent to one large mine. The relationship between the large and small mining companies is also constantly changing, depending on the economy, craftsmanship, society and other factors. For example, in the 1960s and 1970s, there was a trend toward the development of large-scale enterprises. Therefore, we should try our best to find and explore large-scale deposits, which are what we call “monumental” deposits in our country. However, over the years, due to the low content of useful elements in this deposit, significant investment is required for exploration and industrial development, the price of certain non-ferrous and rare metals is declining,