环斑花岗岩是发育于前寒武纪的一种特殊岩石。

Rapakivi is a special rock in Precambrian.

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内部遗传因素是还关键的在寒武纪爆炸。

Internal genetic factors were also crucial in the Cambrian explosion.

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构造地层学方法是变质岩，尤其是前寒武纪变质岩地区地层研究的有效方法。

Structure-stratigraphic method is an effective method for stratigraphic study in Precambrian metamorphic rock area.

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构造地层学方法是变质岩，尤其是前寒武纪变质岩地区地层研究的有效方法。

Structure-stratigraphic method is an effective method for stratigraphic study in Precambrian metamorphic rock area.

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