The BGS Lexicon of Named Rock Units — Result Details

Deanshillock Gravel Formation

Computer Code: DHKG Preferred Map Code: notEntered
Status Code: Full
Age range: Wolstonian Stage (QO) — Wolstonian Stage (QO)
Lithological Description: At Teindland Quarry the Deanshillock Gravel comprises coarse cobble gravel with clasts of quartzite and psammite. It passes upwards into very pale brown (10 YR 7/4) sand, the Orbliston Sand Bed. The Deanshillock Gravel and Orbliston Sand Bed are of probable glaciofluvial origin and, together with the underlying Red Burn Till Formation, probably date from Oxygen Isotope Stage (OIS) 6. At the Red Burn site, the Deanshillock Gravel Formation comprises a unit of sand with sporadic clasts.
Definition of Lower Boundary: The Deanshillock Gravel rests unconformably on stiff, reddish brown (2.5 YR 4/4) massive, matrix-supported sandy silty clayey diamicton of the Red Burn Till Formation.
Definition of Upper Boundary: At Teindland Quarry, the pale brown sand of the Orbliston Sand Bed is overlain unconformably by bleached sand at the base of the Teindland Palaeosol Formation. At the Red Burn site, the upper contact of the Deanshillock Gravel Formation is gradational with overlying bleached silty sandy gravel at the base of the Teindland Palaeosol Formation.
Thickness: >6.5m.
Geographical Limits: Morayshire.
Parent Unit: Central Grampian (Albion) Glacigenic Subgroup (CGAG)
Previous Name(s): Teindland Gravel And Teindland Lower Sand (-4606)
Alternative Name(s): Orbliston And Deanshillock Members Of The Teindland Formation
Stratotypes:
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 
Partial Type Section  Pipeline trench,since reinstated,located 700m south-west of Teindland Quarry Hall et al,1995 
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) 
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable