The BGS Lexicon of Named Rock Units — Result Details
Chelford Sand Formation
| Computer Code: | CHFDS | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Wolstonian Stage (QO) — Devensian Stage (QD) | ||
| Lithological Description: | White to "buff", well-sorted sand, with minor gravel, silt and peat lenses with sporadic in situ tree stumps and wood clasts. | ||
| Definition of Lower Boundary: | Irregular contact with bedrock or deposits of the Oakwood Glacigenic Formation. | ||
| Definition of Upper Boundary: | Unconformable beneath till, sand and gravel of the Stockport Glacigenic Formation. | ||
| Thickness: | To 20m. | ||
| Geographical Limits: | Cheshire. | ||
| Parent Unit: | Britannia Catchments Group (BCAT) | ||
| Previous Name(s): | Congleton Sand [Obsolete Name and Code: Use CHFDS]
(-2080)
Chelford Formation [Obsolete Name and Code: Use CHFDS] (-2693) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Farm Wood Quarry, Chelford, where three members of the Chelford Sand Formation are identified, comprising organic-rich sand, peat and organic-rich soil. Simpson and West, 1958. | ||
| Partial Type Section | New Windsor Road Quarry, Congleton. White sands known also as the Congleton Sand. Evans et al, 1968. | ||
| Reference(s): | |||
| McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. | |||
| Evans, W B, Wilson, A A, Taylor, B J and Price, D. 1968. Geology of the country around Macclesfield, Congleton, Crewe and Middlewich. Memoir of the Geological Survey of Great Britain, Sheet 110 (England and Wales). | |||
| Maddy, D. 1999. English Midlands Chapter 3 in Bowen, D Q (Editor), A revised correlation of the Quaternary deposits in the British Isles. Geological Society Special Report, No.23. | |||
| Simpson, I M and West, R G. 1958. On the stratigraphy and palaeobotany of a Late Pleistocene organic deposit at Chelford, Cheshire. New Phytologist, Vol.57, 239-250. | |||
| Worsley, P. 1991. Glacial deposits of the lowlands between the Mersey and Severn rivers. 203-211 in Ehlers, J, Gibbard, P L and Rose, J (editors), Glacial deposits in Great Britain and Ireland. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||