| Computer Code: |
CEAL |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Holocene Epoch (QH)
— Holocene Epoch (QH) |
| Lithological Description: |
Silts, clays, sands and gravels, underlying the floodplains of the Cumbrian Esk catchment. At the Type Section the top part of the alluvial sequence coarsens downwards from brown clay into sand. |
| Definition of Lower Boundary: |
Sharply erosional, unconformable on all older Quaternary deposits (particularly till at the Type Section) and on 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 at the Type Section, but probably typically 5 to 10m thick in the type area. |
| Geographical Limits: |
1:50k Sheet 37 Gosforth, south of Muncaster Fell. |
| Parent Unit: |
Cumbrian Esk Valley Formation (CEVY)
|
| Previous Name(s): |
Alluvium
(ALV)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Alluvium within the valley of the Cumbrian River Esk from due south of Muncaster Castle to due north of Linbeck Farm, west Cumbria. |
| 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. |
| Reference(s): |
| Akhurst, M C, Chadwick, R A, Holliday, D W, McCormac, M, McMillan, A A, Millward, D, Young, B, Ambrose, K, Auton, C A, Barclay, W J, Barnes, R P, Beddoe-Stephens, B, James, J C W, Johnson, H, Jones, N S, Glover, B W, Hawkins, M P, Kimbell, G S, MacPherson, K A T, Merritt, J W, Milodowski, A E, Riley, N J, Robins, N S, Stone, P, and Wingfield, R T R. 1997. The geology of the west Cumbria district. Memoir of the British Geological Survey, Sheets 28, 37 and 47 (England and Wales). 138pp. |
| 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 |
