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一前言锰在地壳岩石中的克拉克值是千分之一,它的集中而成为有经济价值的沉积矿床有赖於一定的地质条件,在不同地质条件下所形成的矿床,在质量上、矿物组合上,伴生地层上,以及分布规律上都具有一定的特点。这些特点在地质实际现象上所表示出来的便是找矿标志。对找矿标志与成矿规律的掌握与了解是矿床勘探工作的必要的科学依据,也只有在这样的基础上,勘探工作才会更正确,更迅速和更经济地完成,也只有在这样的科学论断的指导下,我们才有条件去根据
A foreword Manganese in the crustal rock Clarke value is one thousandth, its concentration and become an economic deposit depends on the geological conditions of certain geological conditions, formed under different geological conditions of the deposit, in terms of quality, mineral assemblage On the associated strata, as well as the distribution of the law has certain characteristics. These characteristics in the geological phenomenon is expressed on the show is the symbol of prospecting. It is only on this basis that the exploration and understanding of prospecting signs and metallogenic regularities is necessary and scientific basis for prospecting work to be completed more accurately, rapidly and economically, and only in this way Under the guidance of scientific judgment, we have the necessary conditions to base ourselves on