The BGS Lexicon of Named Rock Units — Result Details

Wetherby Member

Computer Code: WETH Preferred Map Code: notEntered
Status Code: Full, pending ratification
Age range: Guadalupian Epoch (PUG) — Lopingian Epoch (PUL)
Lithological Description: Parallel bedded, buff coloured and moderately fossiliferous dolomite with scattered patch reefs and (in the southwest) calcitic and dolomitic mudstones.
Definition of Lower Boundary: Drawn at base of buff dolomite where it rests on the highest finely laminated stratum of the Marl Slate or on basal Permian continental strata or carboniferous strata.
Definition of Upper Boundary: Drawn at base of pale grey ooidal dolomite of the Sprotbrough Member; also at the top of the lower dolomite of the Hampole Beds where present.
Thickness: Up to 40 metres (commonly 12 to 20 metres).
Geographical Limits: Eastern England, (Yorkshire Province).
Parent Unit: Cadeby Formation (CDF)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Area  Disused railway cutting at former Wetherby Station, West Yorkshire. 
Reference Section  Disused railway cutting, near Ingbarrow Farm, Wetherby, West Yorkshire. 
Edwards, W, 1950. Geology of the district north and east of Leeds. Explanation of Sheet 70. Memoirs of the Geological Survey of Great Britain. 
Smith, D B, Harwood, G M, Pattison, J and Pettigrew, T H. 1986. A revised nomenclature for Upper Permian strata in eastern England. 9-17 in Harwood, G M and Smith, D B (editors). The English Zechstein and Related Topics. Geological Society Special Publication No.22. 
Smith, D B, Brunstrom, R G W, Manning, D I, Simpson, S and Shotton, F W. 1974. A correlation of Permian rocks in the British Isles. Geological Society of London Special Report No. 5. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable