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): CARBONIFEROUS LIMESTONE
BASAL SANDSTONE UNIT
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Lilleshall Borehole L8 (SJ71NW/34) from 0 - 40.35m below ground level 
Reference Section  Lilleshall Borehole L17 (SJ71NW/63) from 37.9m - 48.94m below ground level. 
Reference(s):
Riley, N, 1998. Lilleshall Borehole L18 Lithology Log. British Geological Survey Technical Report WH/98/90R. 
Riley, N, 1998. Correlation of selected Ove Arup Boreholes. (Lilleshall). British Geological Survey Technical Report WH/98/91R. 
Murchison, R I, 1839. 'Silurian System'. [London: John Murray.] 
Prestwich, J, 1840. On the Geology of Coalbrookdale. Transactions of the Geological Society of London, Series 2, Vol.5, 413-495. 
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). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E153