英语语法分析

The sedimentary rocks are graywacke, siltstone, tuff andpellitie, etc.

沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。

The host rocks are mainly calcareous siltstone and silty slate.

容矿岩石主要为钙质粉砂岩、粉砂质板岩。

The channel is overlain by siltstone and lenticular beds of limestone.

河道上面覆盖着粉砂岩和石灰岩透晶体。