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. 
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. 
Type Area  Banchory-Strachan area, Kincardineshire 
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 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:
S066 S067 S066 S065 S077