Archean n era 太古代
The Fujian continental crust originated in Archean era possesses a characteristic of multi-phase and multi-stage activity during its evolution.
晚太古宙和早元古宙是陆壳形成的主要时期，并已具现今板块活动特征。
Discordances existed between Fangniushan quartzite series and underlying Archean Eon metamorphic granite series, and overlying the Mesoproterozoic Era Xionger Group.
顶、底界线清晰，与下伏太古宙变质花岗岩系及上覆中元古界熊耳群均呈角度不整合接触。
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