Precambrian period

Precambrian period

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• 网络前寒武纪；前寒武纪年代；先寒武纪

例句

They are controlled by shear fracture belt of epimetamorphic rock series of Precambrian Period.

主要赋存于前寒武纪浅变质岩系中，受剪切断裂带控制。