The BGS Lexicon of Named Rock Units — Result Details

Meadfoot Group

Computer Code: MDT Preferred Map Code: Mdt
Status Code: Full
Age range: Pragian Age (DP) — Emsian Age (DE)
Lithological Description: Dark shales and siltstones with sporadic grey-brown sandstones and beds of decalcified shell debris. Upper part exhibits red coloration in places.
Definition of Lower Boundary: Drawn at base of Meadfoot Group where it rests conformably on non-marine or brackish water deposits called Dartmouth Beds.
Definition of Upper Boundary: Drawn at conformable upward passage from commonly reddened sandstone of Meadfoot Group to sandstones and shales of the Staddon Grits.
Thickness: Not known.
Geographical Limits: South-west England.
Parent Unit: Not Applicable (-)
Previous Name(s): Meadfoot Beds (-76)
Meadfoot Grits (-4784)
Meadfoot Beds And Staddon Grit [Obsolete Name And Code: Use MDT And STG] (MFSG)
Meadfoot Series (-1688)
Alternative Name(s): Meadfoot Group.
Stratotypes:
Type Area  Meadfoot, Torquay, Devon. 
Reference(s):
Evans, K M, 1985. The brachiopod fauna of the Meadfoot Group of the Torbay area, south Devon. Geological Journal, Vol.20, p.81-90. 
Ussher, W A E, 1903. Summary of the Progress of the Geological Survey of Great Britain, for 1902, p.160. 
Ussher, W A E, 1904. Kingsbridge and Salcombe. Memoir of the Geological Survey of Great Britain. 
Champernowne, A. 1881. Notes on a find of Homalontus in the Red Beds at Torquay. Geological Magazine, Vol.8, 487-488. 
Lloyd, W, 1933. Torquay. Memoir of the Geological Survey of Great Britain, 2nd Edition. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E355 E356 E350