2026-04-13 20:22 浏览次数 22
新近系
sapphire-primary deposit occurred in basalts of niushan formation and yaoshan formation in cenozoic new neogene linqu group, which has a close relation with high-k alkalic basalts.
蓝宝石原生矿赋存于新生代新近纪临朐群牛山组和尧山组的玄武巖中,与高钾堿性玄武巖关系密切。