The BGS Lexicon of Named Rock Units — Result Details

Cumbrian Esk Valley Formation

Computer Code: CEVY Preferred Map Code: notEntered
Status Code: Full
Age range: Holocene Epoch (QH) — Holocene Epoch (QH)
Lithological Description: Sands, gravels, silts and clays forming river terraces and underlying floodplains of the Cumbrian Esk catchment.
Definition of Lower Boundary: Sharply erosional, unconformable on all older Quaternary deposits (particularly till) and bedrock.
Definition of Upper Boundary: The ground surface, or overlain by peat of the Blelhem Peat Formation, or overlain by blown sand of the Drigg Point Sand Formation.
Thickness: 11.58m thick at Partial Type Section, but probably typically 5-10m thick in the type area.
Geographical Limits: 1:50k Sheet 37 Gosforth, south of Muncaster Fell.
Parent Unit: Cumbria-Lancashire Catchments Subgroup (CLCA)
Previous Name(s): Alluvial Fan Deposits (ALF)
Alluvium And River Terrace Deposits (-2681)
Alternative Name(s): none recorded or not applicable
Type Area  Alluvium and river terraces within the valley of the Cumbrian River Esk, between Muncaster Castle and Lindbeck farm, west Cumbria. 
Partial Type Section  Muncaster Bridge Borehole 1 (BGS Registered Borehole SD19NW/1), from 0.0 to 11.58m depth, southern side of River Esk, c 1km east of Muncaster Castle, west Cumbria. 
Trotter, F M, Hollingworth, S E, Eastwood T and Rose, W C C. 1937. Gosforth District. Geological Survey Memoir, England and Wales, Sheet 37. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable