The BGS Lexicon of Named Rock Units — Result Details

Banchory Till Formation

Computer Code: BATI Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Gravelly and sandy diamicton composed principally of decomposed Neoproterozoic metamorphic rocks and Caledonian igneous rocks.
Definition of Lower Boundary: Unconformable: on pre Late Devensian superficial deposits or bedrock.
Definition of Upper Boundary: Conformably overlain by Glen Dye Silts Formation or Lochton Sand and Gravel Formation; otherwise unconformably overlain by Flandrian deposits, or at the ground surface.
Thickness: Very variable, generally 2 to 5m, over 8m proved in some sections
Geographical Limits: The East Grampian Highlands.
Parent Unit: East Grampian Glacigenic Subgroup (EGD)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  River cliff section of the Burn of Granney, 400m west of the Mill of Clinter. 
Type Area  Banchory-Strachan area, Kincardineshire 
Reference Section  Small working, 400m westsouthwest of Finzean House. British Geological Survey section and pit reference number NO69SW/2, 0.3 to 4.9m depth. 
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) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S066 S067 S066 S065 S077