英语语法分析

Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.

砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。

Because they are porous, sedimentary rocks, such as sandstones and conglomerates, are important potential sources of groundwater.

由于像如砂岩和砾岩这样的沉积岩是多孔的，它们是地下水的重要潜在来源。

It intruded Eocene sandstones.

它侵入始新世砂岩。