There are sandstones, shales, and grits, with ferruginous joints.
Locally the sandstones contain as much as 20 per cent of the roscoelite.
Of such impressions there are untold thousands upon these sandstones.
In the marls and sandstones of the Permian period there is also much gypsum.
Sandstones, shales and coal may be observed in this condition.
Geologically, it has a basis of limestones, resting on sandstones.
Some of these sandstones were a good load for two ordinary men.
Amongst the latter were sandstones, slates, shales and limestones.
They are sometimes observed, also, in sandstones and shales.
The eastern part is abundant in sandstones, breccias, and shales.