The BGS Lexicon of Named Rock Units — Result Details

Wigton Marine Bed

Computer Code: WIGM Preferred Map Code: notEntered
Status Code: Full
Age range: Ipswichian Stage (QI) — Ipswichian Stage (QI)
Lithological Description: Lenses of "drab" clay within red clay containing Turritella communis, foraminifera and ostracods, recovered from a borehole only. The fossilliferous deposits are possibly Ipswichian in age, but were probably transported as glacial rafts from the Solway Firth during the Early Scottish Glaciation.
Definition of Lower Boundary: Core recovery was poor, but the clays apparently rested on bedrock (Stanwix Shale) within a buried channel at about 46m depth. (-21m OD) at Wigton.
Definition of Upper Boundary: Core recovery poor, but the fossilliferous deposits were found beneath "clay containing foreign erratics", presumably till.
Thickness: Probably a few metres, but core recovery was poor.
Geographical Limits: Found only at Wigton, north Cumbria.
Parent Unit: Gillcambon Till Formation (GCBTI)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Wigton Formation
Stratotypes:
Type Section  BGS Registered borehole NY/24NE/2 drilled 594m south of Wigton Station by British Rayophane Ltd. Eastwood, et al. 1968. Core examined by S E Hollingworth. 
Reference(s):
Thomas, G S P. 1999. Northern England. 91-98 in Bowen, D Q (Editor), A revised correlation of Quaternary and Neogene deposits in the British Isles. Geological Society Special Report No.23. 
Eastwood,T, Hollingworth, S E, Rose, W C C and Trotter, F M. 1968. Geology of the country around Cockermouth and Caldbeck. Memoir of the Geological Survey of Great Britain, England and Wales, Sheet 23. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable