摘要
沿扬子地台西缘与松潘甘孜造山带东缘结合部中段两侧分布的二叠纪火山岩，分别代表攀西裂谷时期海相和陆相环境中的火山喷发产物。西部为海相高钾钙碱性—碱性拉斑玄武岩系列，东部为陆相低钾钙碱性拉斑玄武岩系列；两者的来源深度不一，前者较后者相对较深。
Permian volcanic rocks on the werstern margin of the central Kangdian axis close to the eastern margin of the Songpan Garze orogenic zone represent products of marine and continental volcanic activity in the Panxi rifting epoch The volcanic rock in west is marine K rich calc alkaline alkaline tholeiite series,while the vocanic rock in east is continental K low calc alkaline tholeiite series Magmatic source of the former is deeper than that of the latter
出处
《四川地质学报》
1999年第1期23-24,27-28,共4页
Acta Geologica Sichuan
关键词
峨眉山玄武岩
大石包组
海相
陆相
攀西裂谷
Emeishan basalt,Dashibao Formation,marine facies,continental facies,Panxi rift
