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对花岗岩岩石学的研究近年来已取得显著的成绩。Ishihara(1977)把花岗岩类分为两类:铁矿(MT)系列和钛铁矿(IL)系列。学者利用这个分类,就花岗岩类的性质,深入细致地研究了日本范围内与花岗岩密切有关的矿床特征。
Research on granite petrology has achieved remarkable success in recent years. Ishihara (1977) divided the granites into two groups: the Iron Ore (MT) series and the Ilmenite (IL) series. Using this classification, scholars have studied the nature of granitoids in depth and carefully studied the characteristics of the deposits closely related to granite in Japan.