The BGS Lexicon of Named Rock Units — Result Details

Parys Mountain Volcanic Formation

Computer Code: PARV Preferred Map Code: notEntered
Status Code: Full
Age range: Llandovery Epoch (SL) — Llandovery Epoch (SL)
Lithological Description: Massive and flow banded rhyolite and felsic ash flow tuff.
Definition of Lower Boundary: Unconformbly overlying Mynydd Eilian Formation (MYEI).
Definition of Upper Boundary: Probably conformably overlain by Copper Mine Formation (COMN).
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