Aber Mawr Formation
Geologial formation in Wales
From Wikipedia, the free encyclopedia
The Aber Mawr Formation is a geological formation in Wales. It preserves fossils dating back to the Arenig Series of the Ordovician period.[1]
| Aber Mawr Formation | |
|---|---|
| Stratigraphic range: Arenig | |
| Type | Geological formation |
| Underlies | Porth Lauog Formation |
| Thickness | >215 m (705 ft) |
| Lithology | |
| Primary | Mudstone |
| Other | Tuff, debrite |
| Location | |
| Country | Wales |
| Extent | Ramsey Island |
| Type section | |
| Named for | Aber Mawr Bay, Ramsey Island |
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