Then in the north west there are late Silurian sedimentary rocks.

The grey slates and shales of the Silurian rock are obvious as you walk.

Streams cut through this sandstone to the underlying Silurian rocks.

It is found in the Silurian rocks.

This sort of preservation is very common in European Ordovician and Silurian rocks.

Here Silurian rocks have been tilted almost to the vertical.

These remnants include a variety of fossils which now make up the layer we know to be mainly Silurian rock.

Next in the center, south and north west of Giralang there are late Silurian sedimentary rocks.

He divided the Silurian rocks of Bohemia into eight stages.

The Silurian rocks are primarily dolomite and limestone.