The BGS Lexicon of Named Rock Units — Result Details

Lower Follifoot Grit

Computer Code: LFG Preferred Map Code: LFG
Status Code: Full
Age range: Arnsbergian Substage (CG) — Arnsbergian Substage (CG)
Lithological Description: Sandstone; fine-, medium- and coarse-grained.
Definition of Lower Boundary: Sharp contact between sandstone bed at the base of the unit and the underlying siltstone and mudstone.
Definition of Upper Boundary: Sharp contact between sandstone and the overlying mudstone.
Thickness: 3 - 46m
Geographical Limits: Present in the Harrogate, Leeds, Masham and Pateley Bridge areas.
Parent Unit: Silsden Formation (SILS)
Previous Name(s): Lower Follifoot Grit (LFG)
Follifoot Grit (-3522)
Lower Follifoot Ridge Grit (-1654)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Sandstone ridge between the farms of Low Snape and Home Farm lying to the southwest and west respectively of Follifoot village near Harrogate. Edwards et al., 1950. 
Reference(s):
Hudson, R G S. 1934. The Millstone Grit succession south of Harrogate. Transactions of the Leeds Geological Association, Vol. 5, 118-124. 
Hudson, R G S. 1939. The Millstone Grit succession of the Simonseat Anticline, Yorkshire. Proceedings of the Yorkshire Geological Society, Vol. 23, p. 319 - 349. 
Wilson, A A. 1977. The Namurian rocks of the Fewston area. Transactions of the Leeds Geological Association, Vol.9, 1-42. 
Fox-Strangways, 1873. The geology of the country north and east of Harrogate. Memoir of the Geological Survey (England & Wales). London HMSO. 
Fox-Strangways, 1908. The geology of the country north and east of Harrogate (2nd edition). Memoir of the Geological Survey (England & Wales). London HMSO. 
Hudson, R G S, 1938. The geology of the country around Harrogate. Proceedings of the Geologists' Association, Vol.49, 306-330. 
Edwards, W Mitchell, GH and Whitfield, TH. 1950. Geology of the district north and east of Leeds. Memoir of the British Geological Survey, sheet 70 (England and Wales). 
Wilson, A A. 1960. The Carboniferous rocks of Colsterdale and neighbourhood, Yorkshire. Proceedings of the Yorkshire Geological Society, Vol. 32, p. 429 - 452. 
Burgess, I C and Cooper, A H. 1980. The Farnham (IGS) borehole near Knaresborough, North Yorkshire. Report of the Institute of Geological Sciences, No.80/1, pp.12-17. 
Cooper, A H and Burgess, I C. 1993. Geology of the country around Harrogate. Memoir for 1:50000 geological sheet 62 (England and Wales). London: HMSO for the British Geological Survey. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E062 E051 E070