The BGS Lexicon of Named Rock Units — Result Details

Treiorworth Formation

Computer Code: TWF Preferred Map Code: notEntered
Status Code: Full
Age range: Floian Age (OFL) — Darriwilian Age (ODW)
Lithological Description: Thick bedded to massive conglomerate and sandstone.
Definition of Lower Boundary: Conformable upon Carmel Member (CMEL).
Definition of Upper Boundary: Stratigraphic contact upwards and laterally with the Capel Parc Formation (CAPC).
Thickness: none recorded or not applicable
Geographical Limits: Anglesey.
Parent Unit: Llyn Alaw Group (ALAW)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Bates, D E B. 1974. The structure of the Lower Palaeozoic rocks of Anglesey, with special reference to faulting. Geological Journal, 9(1), 39-60. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable