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重要的铬铁矿床均产于基性、超基性侵入岩中.铬铁矿的造矿元素,通过岩浆分异作用,于岩浆晚期残余岩浆中富集并结晶形成具工业价值的铬铁矿床.因此,铬铁矿床在侵入体中的空间分布和在成因上,总是与一定的岩相有密切关系.重视对矿石和成矿母岩的矿物学和岩石学研究,对阐明铬铁矿的成因是重要的.但成矿岩相的形成及其矿物、化学成分特征,则又与侵入岩体的岩浆成分密切相关.由不同成分的基性、超基性岩浆形成的岩体,在空间分布上有一定规律性,并具有不同的成矿特征.
Important chromite deposits occur in both basic and ultrabasic intrusive rocks.The ore-forming elements of chromite are enriched and crystallized in the late magmatic remnant magma through magmatic differentiation to form industrial-grade ferrochrome Therefore, the spatial distribution and genesis of chromite deposits in intrusions are always closely related to certain lithofacies, and emphasis is placed on the mineralogy and petrology of ores and metallogenic rocks, The origin of chromite is important, but the formation of the metallogenic facies and the characteristics of its mineral and chemical composition are closely related to the magmatic composition of the intrusive rock. The rocks formed by the basic and ultrabasic magmas of different compositions The body has certain regularity in the spatial distribution and has different metallogenic characteristics.