The BGS Lexicon of Named Rock Units — Result Details

St Cynllo's Church Formation

Computer Code: SCC Preferred Map Code: SCC
Status Code: Pending Upgrade
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Black, locally laminated, pyritic mudstones with scattered thin bentonites and sandstones. Packets of thin- to thick-bedded sandstones with subordinate mudstones locally developed.
Definition of Lower Boundary: Base not seen.
Definition of Upper Boundary: Gradational but taken at incoming of sequence dominated by burrow mottled mudstones.
Thickness: Not defined.
Geographical Limits: Central Wales.
Parent Unit: Not Applicable (-)
Previous Name(s): Carmel Group (-516)
Alternative Name(s): none recorded or not applicable
Type Section  Numerous sections in and around Maesygelli Farmyard, Nantmel, Wales. 
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: