英语语法分析

The presence of these minerals gives felsic rock its characteristic light gray color.

这些矿物的存在使这种岩石呈特有的浅灰色。

Felsic gneiss is the most widely distributed rock type in Archean metamorphic complex areas.

长英质片麻岩是太古宙变质杂岩区最主要的岩石类型。

As to the activity of the components, the mafic component is more active than the felsic component.

在组分活性方面，镁铁质组分比长英质组分的活动更为明显。