The BGS Lexicon of Named Rock Units — Result Details

Banffshire Coast and Caithness (Albion) Glacigenic Subgroup

Computer Code: BCAG Preferred Map Code: BCA
Status Code: Full
Age range: Mid Pleistocene Epoch (QPM) — Mid Pleistocene Epoch (QPM)
Lithological Description: Reddish to dark blue-grey clayey diamictons containing clasts and rafts of Mesozoic rocks derived from the bed of the Moray Firth; also pre-Late Devensian glaciomarine shelly muds. Suite of glacial, glaciofluvial, glaciolacustrine and glaciomarine deposits.
Definition of Lower Boundary: Unconformable on bedrock.
Definition of Upper Boundary: Ground surface or unconformably overlain by deposits of the Caledonia Glacigenic Group.
Thickness: Up to 10 m.
Geographical Limits: The hinterland of the Moray Firth, Buchan, Caithness and Orkney.
Parent Unit: Albion Glacigenic Group (ALBI)
Previous Name(s): BANFFSHIRE COAST GLACIGENIC GROUP
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  The hinterland of the Moray Firth, including the north-eastern end of the Great Glen, the southern shores of the Moray Firth as far east as Buckie, the Black Isle, the land surrounding the Cromarty and Dornoch firths, Caithness and Orkney. 
Reference(s):
McMillan, A A, Hamblin, R J O and Merritt, J W. 2004. An overview of the lithostratigraphical framework for Quaternary and Neogene deposits of Great Britain (onshore). British Geological Survey Research Report. RR/04/04. 
Merritt, J W, Auton, C A, Connell, E R, Hall, A M and Peacock, J D. 2003. The Cainozoic geology and landscape evolution of northeast Scotland. Memoir of the British Geological Survey, Sheets 66E, 67, 76E, 77, 86E, 87W, 87E, 95, 96W, 96E and 97 (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable