2) melaphyre-tuff
暗玢凝灰岩
3) melaphyre-lapillituff
暗玢火山礫凝灰岩
4) porphyrite
['pɔ:firait]
玢岩
1.
Genesis of the ore-bearing porphyrite in Tiegelong,Gerze,Xizang;
西藏改则县铁格隆地区含矿玢岩特征与成因探讨
5) pyroxene porphyrite
辉石玢岩
1.
Based on petrochemical and geochemical studies,the paper comes to the conclusion that the pyroxene porphyrite bodies are an alkalic basalt series,which have generated from the different evolutionary stages of a primary magma,i.
对岚皋地区辉石玢岩岩石化学和地球化学研究表明，本区辉石玢岩为碱性玄武岩系列；不同期次活动的辉石玢岩为同源岩浆在不同阶段上演化的产物；演化趋势属跨越Ｂ型，本区辉石纷岩形成于板内稳定区，是早古生代南秦岭被动大陆边缘裂谷的岩浆活动时的产物，该裂谷扩张速度与东非埃塞俄比亚相近。
6) diabase porphyrite dikes
辉绿玢岩
1.
During the Late Cretaceous the Taipingyan diabase porphyrite dikes with NNE strike emplaced into the eastern part of the Guidong composite granitoids in northern Guangdong Province.
晚白垩世太平奄组辉绿玢岩位于粤北贵东复式岩体东部,呈NNE向展布。
补充资料：玢岩
见斑岩。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条