- Material:
- Slate
- Category:
- Metasedimentary, Metamorphic
- Alternative name(s):
- Colour:
- Black
- Place of origin:
- Carlow, Ireland
- Rock Unit Name:
- Geological Age:
- Ordovician
- Context of Use:
- Flooring, Roofing
Notes:
A fine-grained black slate. This was originally a mudstone deposited in deepish water, that was subsequently metamorphosed during the Caledonian Orogeny (mountain-building event) that resulted from the closure of the Iapetus Ocean when two continental masses collided approximately 400 Ma ago.References
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