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):
Mykura, W, 1970. The Old Red Sandstone sediments of Fair Isle, Shetland Islands, Bulletin of the Geological Survey of Great Britain, No.41. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S126