The BGS Lexicon of Named Rock Units — Result Details

Brynrefail Group

Computer Code: BRYF Preferred Map Code: notEntered
Status Code: Full
Age range: Pridoli Epoch (SO) — Early Devonian Epoch (DL)
Lithological Description: none recorded or not applicable
Definition of Lower Boundary: Unconformably overlying Silurain and Ordovician rocks, e.g Llyn Alaw Group (ALAW).
Definition of Upper Boundary: Unconformably overlain by Lower Carboniferous ropcks of the Clwyd Limestone Group (CLWYD).
Thickness: none recorded or not applicable
Geographical Limits: Anglesey.
Parent Unit: Not Applicable (-)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable