本文中的层状岩体是指由拉斑玄武岩岩浆分异而形成的具韵律层的岩体。岩体内铂矿主要呈层状产出,并可分为两类:一类是铂铬矿层;另一类是含少量硫化物的铂矿层。前一类矿层因存在选冶技术问题,尚未开采利用;后一类称麦伦斯基型,其中麦伦斯基-里夫层是 The layered rock mass in this paper refers to rhythmic rock mass formed by the differentiation of tholeiite magma. Platinum deposit in the rock body is mainly stratified and can be divided into two types: one is the platinum-chromium deposit; the other is the platinum deposit with a small amount of sulfide. For the former type of ore dressing and smelting technology there is a problem, not exploitation; the latter is called Myrensky type, in which the Myrensky-Reeve layer is