Bronsil Shale
Ordovician (Tremadoc)
PERIOD |
GROUP |
FORMATION |
Ordovician |
- |
Bronsil Shale |
Lithology
Fissile silver-grey mudstone.
Upper Boundary
Faulted or unconformity.
Lower Boundary
Probably conformable with White-leaved Oak Shale.
Representative Sites
Colehill Cottage Cutting
Information on lithology and boundaries taken from the British Geological Survey Lexicon of Named Rock Units
and BGS Memoirs. |