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一、引言铬尖晶石是含矿(铬)超基性岩体中的主要矿物,对造矿铬尖晶石和附生铬尖晶石在化学成分、稀土元素分布特征等方面的研究成果二十多年来已经有很多报导,但是由于铬铁矿成矿作用的复杂性和多样性,往往在不同岩体的造矿和附生铬尖晶石的元素成分(如
I. INTRODUCTION Chromium spinel is the main mineral in the ore-bearing (Cr) ultrabasic rocks. The research results on the chemical composition and distribution characteristics of rare earth elements of the chromite and epigenate chrome However, due to the complexity and diversity of chromite mineralization, it is often found that the elemental composition of the ore-forming and epigenic chrome spinel in different rock masses