Precambrian period

Precambrian period

美  英

  • 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。