The BGS Lexicon of Named Rock Units — Result Details

Whinneyhill Coppice Clay Member

Computer Code: WCC Preferred Map Code: WCC
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Dark brown (Munsell Soil colour) clay with laminae of silt and fine-grained sand, and sparse dropstone pebbles. Rhythmic graded lamination is common.
Definition of Lower Boundary: Sharp, undulating, unconformable contact with pale red stony clay diamicton and cobble gravel of the Holmrook Till Member of the Blengdale Glacigenic Formation.
Definition of Upper Boundary: Generally sharp, planar, glacitectonic, unconformable contact with dark reddish brown pebbly silty clay diamicton of the Green Croft Till Member of the Aikbank Farm Glacigenic Formation.
Thickness: To 24.7m
Geographical Limits: Lower Wasdale, West Cumbria, inland of the limit of ice of the Irish Sea Ice Stream during the "Gosforth Oscillation".
Parent Unit: Aikbank Farm Glacigenic Formation (AIK)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  BGS registered borehole SD19NW11 (Aikbank Farm Borehole 1), from 35.6 to 49.17m depth. Nirex, 1997. 
Type Section  BGS registered borehole SD19NW12 (Aikbank Farm Borehole 2), from 33.69 to 57.8m depth. Nirex, 1997. 
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. 
Huddart, D. 1991. The glacial history and glacial deposits of the north and west Cumbrian lowlands, 151-167 in Ehlers, J, Gibbard, P L and Rose, J (editors), Glacial deposits in Great Britain and Ireland. [London: Balkema.] 
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 
Merritt, J W and Auton, C A. 1997. Quaternary lithostratigraphy of the Sellafield district. Nirex Science Report SA/97/045 (Issue 2.0). [Report prepared for UK Nirex Ltd. 69pp, 5 tables, 20 figures, 14 enclosures and one appendix.] 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable