The BGS Lexicon of Named Rock Units — Result Details

Pentre Formation

Computer Code: PTRE Preferred Map Code: PtrF
Status Code: Pending Upgrade
Age range: Ashgill Series (OA) — Ashgill Series (OA)
Lithological Description: Fossiliferous argillaceous fine-grained sandstones and silty mudstones.
Definition of Lower Boundary: Unknown.
Definition of Upper Boundary: Probably unconformable base of overlying Henfryn Formation.
Thickness: Unknown.
Geographical Limits: Central Wales.
Parent Unit: Not Applicable (-)
Previous Name(s): Pentre Formation [Obsolete Code: Use PTRE] (PTRF)
Alternative Name(s): none recorded or not applicable
Type Section  Quarry, c.200 metres north-north-west of Pentre Farm. 
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: