The BGS Lexicon of Named Rock Units — Result Details

Kendal Till Member

Computer Code: KLTI Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Stiff, yellowish brown, reddish brown or dark grey, silty sandy clayey diamicton containing angular to rounded clasts up to boulder size of rocks derived from the southern Lake District and the Howgill Fells, including Borrowdale Volcanic Group rocks (rhyolite, welded tuff, slate), granite, wacke sandstones and siltstones of the Windermere Supergroup and locally, Carboniferous basal conglomerate and limestone. Large erratics are ubiquitous, both as individuals and forming trains. They range in size up to 3x2x1m, consisting commonly of Silurian wacke sandstone, but also including Borrowdale volcanic rocks and Shap granite.
Definition of Lower Boundary: Generally sharp, irregular, unconformable contact with underlying bedrock.
Definition of Upper Boundary: Generally at surface or overlain unconformably by a variety of Flandrian sediments, including peat and alluvium. Locally unconformably overlain by glaciofluvial sand and gravel.
Thickness: <5m to >40m in drumlins
Geographical Limits: The southern Lake District, east of the Duddon, including the Lancashire coast north of Carnforth and stretching eastwards to the foot of the Pennines.
Parent Unit: Blengdale Glacigenic Formation (BLGL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  The southern Lake District,east of the Duddon,including the Lancashire coast north of Carnforth and stretching eastwards to the foot of the Pennines. Macmillan et al,2009 
Type Section  A 40m high natural section cut in the side of a drumlin on the west bank of the River Belah,south of Milnthorpe centre 1:10 000 Standard SD48SE 
Reference(s):
McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. 
Merrit, J W and Auton, C A. 2000. An outline of the lithostratigraphy and depositional history of Quaternary deposits in the Sellafield district, west Cumbria. Proceedings of the Yorkshire Geological Society, Vol.53, 129-154 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable