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众所周知,在各个地区进行重矿物鉴定的主要目的,是为了查明岩石内各种重矿物的含量分布以及变化规律,据此以进行划分和对比地层。尤其是在缺少化石的地层,利用重矿物鉴定进行划分和对比地层的意义就显得更重要了。同时通过重矿物鉴定还可寻找有工业价值的重矿物,以便进行开采。
It is well known that the main purpose of heavy mineral identification in various regions is to find out the distribution and variation of various heavy minerals in the rock so as to divide and contrast the strata. Especially in the absence of fossil strata, the use of heavy mineral identification to distinguish and contrast the significance of stratigraphy is even more important. At the same time through heavy mineral identification can also find heavy minerals with industrial value for mining.