The BGS Lexicon of Named Rock Units — Result Details

Trysull Silt Formation

Computer Code: TSLSI Preferred Map Code: notEntered
Status Code: Full
Age range: Hoxnian Stage (QX) — Hoxnian Stage (QX)
Lithological Description: A heterogeneous, fossiliferous sequence of silt, clay, sand, clayey sand, gravel and organic-rich horizons. Strong iron and manganese staining along some horizons.
Definition of Lower Boundary: Unconformable on sand and gravel of the Seisdon Sand and Gravel Formation.
Definition of Upper Boundary: Either the ground surface or underlies till of the Stockport Glacigenic Formation.
Thickness: 2.8 to 5m
Geographical Limits: Narrow, linear belt between Seisdon and Trysull, Staffordshire.
Parent Unit: Britannia Catchments Group (BCAT)
Previous Name(s): Trysull Member (-4376)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Former quarries at Lowe's Pit and Cooper's Pit, Staffordshire. Morgan, A V. 1973. 
Reference(s):
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. 
Morgan, A V. 1973. The Pleistocene geology of the area north and west of Wolverhampton, Staffordshire, England. Philosophical Transactions of the Royal Society of London, Series B, Vol.265, 233-297. 
Worsley, P. 1999. Cheshire, Shropshire and Staffordshire Lowlands. 32-34 in Bowen, D Q (Editor), A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No.23. 
McMillan, A A, Hamblin, R J O and Merritt, J W. 2005. An overview of the lithostratigraphical framework for the Quarternary and Neogene deposits of Great Britain (onshore). British Geological Survey Research Report RR/04/04. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable