The BGS Lexicon of Named Rock Units — Result Details

Dolgau Mudstones Formation

Computer Code: DGU Preferred Map Code: Dgu
Status Code: Pending Upgrade
Age range: Llandovery Epoch (SL) — Llandovery Epoch (SL)
Lithological Description: Grey, green and locally purple mudstones; local burrow mottling.
Definition of Lower Boundary: Not defined.
Definition of Upper Boundary: Not defined.
Thickness: Not defined.
Geographical Limits: Not defined.
Parent Unit: Not Applicable (-)
Previous Name(s): Dolgau Mudstones (-3358)
Dolgau Mudstone Formation (-3990)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Campbell, S D G. 1983. The geology of an area between Bala and Betws-y-Coed, North Wales. Unpublished PhD Thesis, University of Cambridge. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E120 E136 E179 E137 E165