岩石化学类型 meaning in English
petrochemical type
Examples
- According to the content of mgo , emeishan basalt can de divided into high - mg ( mgo > 12 % ) volcanic rock and lower - mg ( mgo < 12 % ) basalt
该区二叠纪的火山岩依据mgo 12可分为两个岩石化学类型：低镁火山岩即峨眉山玄武岩；高镁火山岩。 - Taiping maifan mineral contacts with migmatitic granite and grandiosity , the mother rock is granite which include a lot of potassium elements and the major mineral of maifan stone is plagiocase , k - feldspar , minor mineral is biotite , muscovite , quartz and so on . ,
麦饭石的主要矿物为斜长石、钾长石，次生矿物为黑云母、白云母、石英等，岩石化学类型属钙碱系列，主要微量元素和稀土元素均与中华麦饭石相近。