Occurrence of Attributes in Original Text
The text related to the cultural heritage 'The Slate Landscape of Northwest Wales' has mentioned 'Silurian' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The slate deposits of Wales belong to three geological series: Cambrian, Ordovician and Silurian. | WIKI |
| The Silurian deposits are mainly further east in the Dee valley and around Machynlleth. | WIKI |