The BGS Lexicon of Named Rock Units — Result Details

Ebchester Sand And Gravel Formation

Computer Code: EBSG Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Sand and gravel containing clasts of Carboniferous lithologies (sandstone, gritty sandstone, limestone, mudstone, gannister, coal), including far-travelled clasts from Scotland and the Lake District (greywacke sandstone and siltstone, granite and granodiorite).
Definition of Lower Boundary: Erosional unconformable contact with stiff, dark greyish brown, stony, sandy silty clay diamicton of the Wear Till Formation.
Definition of Upper Boundary: Generally the land surface, or erosional unconformable contact with sand and gravel forming more recent river terraces.
Thickness: To 10m
Geographical Limits: Northern Pennines.
Parent Unit: North Pennine Glacigenic Subgroup (NPEG)
Previous Name(s): Glacial Sand And Gravel (GSG)
Alternative Name(s): Ebchester Formation
Stratotypes:
Type Area  Broadoak sand and gravel pit, 1.5km northnorthwest of Ebchester, County Durham. Allen and Rose, 1986. 
Reference(s):
Allen, P and Rose, J. 1986. A glacial meltwater drainage system between Whittonstall and Ebchester, Northumberland. 68-88 in Maclin, M G and Rose, J (editors). Quaternary River Landforms and Sediments in the Northern Pennines, England. Field Guide, British Geomorphological Research Group/Quaternary Research Association. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable