The BGS Lexicon of Named Rock Units — Result Details

Red Burn Till Formation

Computer Code: RDBRN Preferred Map Code: notEntered
Status Code: Full
Age range: Woolstonian Substage (OS) — Woolstonian Substage (OS)
Lithological Description: Stiff, reddish brown (2.5 YR 4/4), massive, matrix-supported sandy silty clayey diamicton. Quartzite and psammite clasts are dominant, but the presence of Devonian sandstone and Mesozoic siltstone and sandstone suggests ice movement from the north-west.
Definition of Lower Boundary: Sharp, uneven, unconformable contact with bedrock, locally a gradational unconformable contact with weathered Devonian conglomerate.
Definition of Upper Boundary: At the Red Burn site, the Red Burn Till is overlain unconformably by a unit of sandwith sporadic clasts that appears to correlate with the Deanshillock Gravel Formation at the base of the known sequence at Teindland Quarry. At the latter site, the Deanshillock Gravel is at least 3.5m thick, comprises coarse cobble gravel with clasts of quartzite and psammite, and passes upwards into up to 3m of very pale brown (10 YR7/4) sand, the Orbliston Sand Bed.
Thickness: >1.5m.
Geographical Limits: Morayshire.
Parent Unit: Banffshire Coast and Caithness (Albion) Glacigenic Subgroup (BCAG)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Red Burn Member of the Teindland Formation of Sutherland, 1999
Stratotypes:
Type Section  Pipeline trench, since reinstated, located 700m south-west of Teindland Quarry Hall et al., 1995 
Partial Type Section  Teindland Quarry, a small sand and gravel pit, is located in Teindland Forest, 5 km south-west of Fochabers, Morayshire Merritt et al., 2003 
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) 
Sutherland, D G. 1999. Scotland. 99-114 in Bowen D Q (Editor), A revised correlation of Quaternary deposits in the British Isles. Special Report of The Geological Society of London, No.23. 
Hall, A M, Whittington, G, Duller, G A T, and Jarvis, J. 1995. Late Pleistocene environments in lower Strathspey, Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol.85, 253-273. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable