峨眉山玄武岩系可分早、中、晚三个旋迴,分别由碱性玄武岩、大陆拉斑玄武岩和酸性火山岩组成。据岩石化学、地球化学以及岩石组合研究,提出本区大陆拉斑玄武岩岩浆演化的模式。 Emeishan basalt can be divided into early, middle and late three cycles, respectively, by alkaline basalt, continental rock spot basalt and acidic volcanic rocks. Based on the study of petrochemistry, geochemistry and rock assemblage, the magmatic evolution of continental tholei basalt in this area is proposed.