长期以来,如何利用岩石化学分析资料,予测超基性岩体的含矿(铬)性,始终是一个悬而未决的问题。国内外文献中所发表的一些超基性岩岩石化学计算方法,往往只侧重于“恢复原岩”和岩石化学成分特征的研究,很少与岩体的含矿规模大小相联系。一段时期内也曾有过这么一种说法,即超基性岩体若镁铁比值高,有利于铬铁矿生成。 For a long time, how to use petrochemical analysis data to predict ore-bearing (chrome) properties of ultramafic rocks has always been a pending issue. Some ultra-basic rock petrochemical calculation methods published in literatures at home and abroad tend to focus on the research of “recovering the original rock” and petrochemical composition characteristics, and are rarely related to the ore-bearing scale of the rock mass. There has also been a period of time such an argument that the ultramafic rocks if the mafic-iron ratio is high, is conducive to chromite formation.