The BGS Lexicon of Named Rock Units — Result Details

Porth Llanlleiana Formation

Computer Code: LLAN Preferred Map Code: notEntered
Status Code: Full
Age range: Floian Age (OFL) — Floian Age (OFL)
Lithological Description: Thick bedded white quartzite.
Definition of Lower Boundary: Unconformably overlying Porth Swtan Formation (SWTN).
Definition of Upper Boundary: Conformably overlain by Porth Cynfor Formation (CYNFO).
Thickness: none recorded or not applicable
Geographical Limits: Anglesey.
Parent Unit: Porth Wen Group (PORW)
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