Occurrence of Attributes in Original Text

The text related to the cultural heritage 'The English Lake District' has mentioned 'Silurian' in the following places:
Occurrence Sentence Text Source
Around the edges of these Ordovician and Silurian rocks on the northern, eastern and southern fringes of the area is a semi-continuous outcrop of Carboniferous Limestone seen most spectacularly at places like Whitbarrow Scar and Scout Scar.