The BGS Lexicon of Named Rock Units — Result Details

Ward Hill Sandstone Formation

Computer Code: WAG Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Basal conglomerate, sandstone and pebbly sandstone with beds of dolomitic siltstone and mudstone.
Definition of Lower Boundary: Drawn at the base of thr Dronga Conglomerate and Pebbly Sandstone. Base not seen, or faulted contact.
Definition of Upper Boundary: Drawn at conformable upward passage from the Ward Hill Sandstone to siltstone and mudstone of the Furse Argillaceous Beds at the base of the Observatory Sandstone Formation.
Thickness: c.1600m
Geographical Limits: Shetlands, Scotland.
Parent Unit: Fair Isle Group (FIL)
Previous Name(s): Ward Hill Group (-1903)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Fair Isle, Southern Shetlands, Scotland. 
Reference(s):
House, M R, Richardson, J B, Chaloner, W G, Allen, J R L, Holland, C H and Westoll, T S. 1977. A Correlation of Devonian rocks of the British Isles. Geological Society of London, Special Report No.8, Scottish Academic Press, Edinburgh. 
Mykura, W, 1970. The Old Red Sandstone sediments of Fair Isle, Shetland Islands, Bulletin of the Geological Survey of Great Britain, No.41. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S126