Indeed, almost a sedimentary layer of its own.

In those cases, the lateral limits of the sedimentary layer will be marked by an abrupt change in rock type.

Sole markings, such as tool marks and flute casts, are groves dug into a sedimentary layer that are preserved.

Here a sedimentary layer of sandstone and limestone formed from the powerful pressure exerted by the sea.

The feature rises from approximately 2,100 metres to 600 metres below sea level and has a sedimentary layer approximately 100 metres thick.