含矿基性-超基性岩的镁铁比值
Contributions to Geology and Mineral Resources Research（2016）
Abstract
基性-超基性岩中赋存有铜镍硫化物矿床、豆荚状铬铁矿床等许多重要的矿床,基性-超基性岩成岩成矿方面的研究多采用镁铁比值,但以往利用该比值时未考虑岩石的SiO2含量、地质构造及岩石蚀变等一些重要条件.文章结合国内外一些重要的铜镍矿床和铬铁矿矿床,考虑到上述的几个条件,讨论了镁铁比值在划分岩石类型方面的应用,通过计算给出了与前人不同的镁铁比值划分区间.
MoreKey words
basic-ultrabasic rock,Cu-Ni deposits,Cr deposits,Mg/Fe ratio,SiO2 content,geological structure,rock alteration
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