摘要
地球化学特征研究表明，义县地区太古宙变质深成岩属于太古宙晚期富钾的正常钙碱性的花岗闪长岩－石英二长岩－花岗岩系列的岩石，属于壳源分异型花岗岩，形成环境为构造活动带。
The geochemical characteristics show that the Archean metamorphic plutonic rocks are Late Archean K rich calc alkaline granodiorite quartz monzonite granite series rocks,belonging to crust source differentiation type granite and their forming environment is a tectonic active belt.
关键词
义县
变质深成岩
钾质系列
壳源分异
花岗岩
Yixian County Metamorphic plutonic rock Late Archean Potassic series Crust source differentiation
