1) Sanidine phenocryst
透长石斑晶
2) crystals of feldspar
钾长石斑晶
1.
According to field survey and analysis on lithofacies, porphyritic crystals of feldspar belong to primary crystals formed by magma crystallization.
根据野外观察及岩石、矿物学特征测试分析,钾长石斑晶属于岩浆结晶形成的原生斑晶,受化学成分及侵位结晶过程中的物理化学条件影响,钾长石的生长速度大于其成核密度,因而形成粗大斑晶。
3) plagioclase phenocryst
斜长石斑晶
1.
Throughout the pluton there are randomly distributed mafic microgranular enclaves,Both in this enclave and granite exist a kind of plagioclase phenocryst ,which has a parthy core, In such plagioclase there are two composition surfaces,which divided the plagioclase p.
位于俄罗斯境内高加索地区的埃提哲尔花岗岩体中广泛分布暗色微粒包体，花岗岩体由黑云母花岗斑岩及暗色微粒包体组成，这两种岩石均含有一种具斑点状结构核的斜长石斑晶。
5) rapakivi-textured K-feldspar phenocryst
环斑结构钾长石似斑晶
6) petalite pegmatite
透锂长石伟晶岩
补充资料：透长石
见长石。
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