The BGS Lexicon of Named Rock Units — Result Details

Banffshire Coast and Caithness Glacigenic Subgroup

Computer Code: BCD Preferred Map Code: BC
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Suite of 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.
Definition of Lower Boundary: Unconformable on bedrock or units of the Banffshire Coast and Caithness (Albion) Glacigenic Subgroup.
Definition of Upper Boundary: Extends to the surface or buried by Late Glacial to Postglacial deposits.
Thickness: 30m or more.
Geographical Limits: Southern coast of Moray Firth from Elgin to Peterhead, Caithness and Orkney.
Parent Unit: Caledonia Glacigenic Group (CALI)
Previous Name(s): Blue-Grey Series (-673)
Banffshire Coast Drift Group (-3193)
Lower Or South Easterly Drift (-43)
Coastal Deposits And Glaciofluvial Deposits (-4445)
Banffshire Coast Glacigenic Group (-1971)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Southern coast of Moray Firth from Elgin to Peterhead, Caithness and Orkney. See type sections of constituent formations ALGR, ARDS, CRTI, WHGL, PIBG, BLSG, REDR, etc. 
Type Area  Southern coast of Moray Firth from Elgin to Peterhead, Caithness and Orkney. See type sections of constituent formations ALGR, ARDS, CRTI, WHGL, PIBG, BLSG, REDR, etc. 
Reference(s):
Merritt, J W, Auton, C A, Connell, E R, Hall, A M and Peacock, J D. 2003. The Cainozoic geology and landscape evolution of north-east Scotland. Memoir of the British Geological Survey, Sheets 66E, 67, 76E, 77, 86E, 87W, 87E, 95, 96W, 96E and 97 (Scotland) 
Read, H H, 1923. Geology of the country around Banff, Huntly and Turriff, Lower Banffshire and north-west Aberdeenshire. Memoir of the Geological Survey, Scotland Sheets 86 and 96 (Scotland). 
Synge, F M. 1956. The glaciation of north east Scotland. Scottish Geographical Magazine, Vol.72, 129-143. 
British Geological Survey, 1992. 1:50 000 Geological Map of Scotland: Sheet 87E (Peterhead). (This map has a summary of the geology). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S087 S096 S096 S087 S097