porphyrite

英 ['pɔːfɪraɪt] 美 ['pɔːfɪraɪt]

• [地质]玢岩； 微闪长岩

微闪长岩

porphyrite的用法和样例：

例句

1. The three ore belts of Kubusu gold deposit all were preduced in dikes of diorite porphyrite and granodiorite porphyry.
   库布苏金矿床的三个金矿带均产于闪长玢岩和花岗闪长斑岩内。