The BGS Lexicon of Named Rock Units — Result Details

Drumlithie Sand And Gravel Formation

Computer Code: DSG Preferred Map Code: DL
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Sand and gravel, red-brown, with clasts predominantly of Devonian sandstone, mudstone and andesite. Locally with lenses of silt and clay.
Definition of Lower Boundary: Unconformable on bedrock or conformable on Mill of Forest Till Formation or Ury Silts Formation.
Definition of Upper Boundary: Either at the ground surface or unconformably overlain by Flandrian deposits.
Thickness: Very variable, generally 5 to 10m; more than 23m proved in boreholes.
Geographical Limits: Howe of Mearns area and flanking the coastline between Stonehaven and the mouth of the River Dee.
Parent Unit: Mearns Glacigenic Subgroup (MDR)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  British Geological Survey borehole NO77NE/1 at Causeywell Brae c 2.2km east of Auchenblae, from 0.1m to 23.5m depth in borehole. 
Reference Section  British Geological Survey borehole NO78SE/4, at Orchard Hill, Drumlithie, from 0.3m to 3.4m depth in borehole. 
Partial Type Section  Kaim of Clearymuir Gravel Pit, 1.3km eastnortheast of Drumlithie Crossroads. 
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:
S056 S066 S077 S066 S067