The BGS Lexicon of Named Rock Units — Result Details

Village Farm Formation

Computer Code: VIFM Preferred Map Code: Vlg
Status Code: Full
Age range: Late Devonian Epoch (DU) — Tournaisian Stage (CT)
Lithological Description: Polymictic conglomerate, sandstone and breccia.
Definition of Lower Boundary: The lower boundary is taken at a sharp, well-defined unconformity. The base of the unit is taken at the lowermost pebbly sandstone unit overlying a pebble-free sandstone sequence. Rests on Lower Palaeozoic strata of the Lower Comley Sandstone or "Dolgelly Beds".
Definition of Upper Boundary: The upper boundary is assumed to be unconformable or transitional. It is taken at the uppermost sandstone below a sandstone and limestone-dominated sequence of the Jackie Parr Limestone Formation.
Thickness: 40.35m maximum proved (incomplete thickness, top not present) from Lilleshall L8 Borehole (SJ71NW/34).
Geographical Limits: Lilleshall Inlier, Lilleshall, North Shropshire.
Parent Unit: Not Applicable (-)
Previous Name(s): Basal Sandstone Unit (-3112)
Carboniferous Limestone [Obsolete entry, see Supplementary Information] (-4550)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Lilleshall Borehole L17 (SJ71NW/63) from 37.9m - 48.94m below ground level. Incomplete sequence - base not proved. 
Partial Type Section  Lilleshall Borehole L8 (SJ71NW/34) from 0 - 40.35m below ground level Incomplete sequence - top not proved 
Reference(s):
Riley, N, 1998. Lilleshall Borehole L18 Lithology Log. British Geological Survey Technical Report WH/98/90R. 
Murchison, R I, 1839. 'Silurian System'. [London: John Murray.] 
Whitehead, T H, Robertson, T, Pocock, R W and Dixon, E E L. 1928. Geology of the country between Wolverhampton and Oakengates. Memoir of the Geological Survey of Great Britain, Sheet 153 (England and Wales). 
Bridge, D M and Hough E, 2002. Geology of the Wolverhampton and Telford district. Sheet Description of the BGS Sheet 153 (England and Wales). 
Riley, N, 1998. Correlation of selected Ove Arup Boreholes. (Lilleshall). British Geological Survey Technical Report WH/98/91R. 
Prestwich, J, 1840. On the Geology of Coalbrookdale. Transactions of the Geological Society of London, Series 2, Vol.5, 413-495. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E153