Occurrence of Attributes in Original Text
The text related to the cultural heritage 'The Slate Landscape of Northwest Wales' has mentioned 'Ordovician' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The most important slate deposits in Wales are the Cambrian deposits south of Bangor and Caernarfon and the Ordovician deposits around Blaenau Ffestiniog. | WIKI |
| The slate deposits of Wales belong to three geological series: Cambrian, Ordovician and Silurian. | WIKI |
| The Ordovician deposits run south-west from Betws-y-Coed to Porthmadog; these were the deposits mined at Blaenau Ffestiniog. | WIKI |
| There is another band of Ordovician slate further south, running from Llangynnog to Aberdyfi, quarried mainly in the Corris area, with a few outcrops in south-west Wales, notably Pembrokeshire. | WIKI |
| Mechanization was gradually introduced to make most aspects of the industry more efficient, particularly at Blaenau Ffestiniog where the Ordovician slate was less brittle than the Cambrian slate further north, and therefore easier to work by machine. | WIKI |