The BGS Lexicon of Named Rock Units — Result Details

Edenside Till Formation

Computer Code: EDTI Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Stiff,reddish brown,very sandy ,silty clayey diamicton with clasts mainly derived from the Vale of Eden (mostly brown 'Penrith' and red 'St Bees' sandstones,but including Carboniferous limestone and yellow sandstones)the Lake District (including andasitic lavas and welded tuffs) and the Alston Block (sandstone and grit) but also with sparse granodiorite,granite and wacke sandstones from the Galloway Hills of Scotland.
Definition of Lower Boundary: Generally a sharp,unconformable contact with bedrock,but commonly a gradational unconformable contact with weathered/decomposed sandstone.Boreholes reveal a locally sharp unconformable contact with sand and gravel which in turn overlies bedrock.
Definition of Upper Boundary: Generally ar surface or overlain unconformably by a variety of Flandrian sediments including peat and alluvium.Locally unconformably overlain by sand and gravel of the glaciofluvial Baronwood Sand and Gravel Formation
Thickness: Up to 20m
Geographical Limits: The Vale of Eden north-west of Appleby-in -Westmorland and south of Carlisle,including ground mostly underlain by Permo-Triassic rocks.
Parent Unit: Central Cumbria Glacigenic Subgroup (CCGL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Eden Member of Penrith Fm of Bowen et al. (1999)
Stratotypes:
Type Section  River cliff sections on the northern side of the floodplain of the River Eamont between 1 nad 3km downstream of Eamont Bridge,Penrith Arthurton and Wadge,1981 
Reference(s):
Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. 
Arthurton, R S, and Wadge, A J. 1981. Geology of the country around Penrith. Memoir for geological sheet 24. Institute of Geological Sciences, London, HMSO. 
Huddart, D and Glasser, N F (editors). 2002. Quaternary of Northern England. Geological Conservation Review Series, No.25. [Peterborough: Joint Nature Conservation Committee.] 745pp. 
Trotter, F M. 1929. The glaciation of the Eastern Edenside, the Alston Block, and the Carlisle Plain. Quarterly Journal of the Geological Society of London, Vol.85, 549-612. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable