The BGS Lexicon of Named Rock Units — Result Details

Tannadice Sandstone Member

Computer Code: TEF Preferred Map Code: TND
Status Code: Full
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: A fine- to medium-, locally coarse-grained and pebbly, generally cross-bedded, sandstone, containing lenses and rarely more extensive beds of siltstone, mudstone and conglomerate and rare flows of andesitic lava. Thin carbonate beds are rarely developed in the siltstone or mudstone beds. Distinctive pedogenic carbonate (calcrete) clasts occur in the pebbly sandstone and conglomerate.
Definition of Lower Boundary: Conformable, diachronous to some extent. The base of the member is placed at the top of the highest lava of the Montrose Volcanic Formation in the Montrose area where this is overlain by cross-bedded sandstones. It is underlain by and interdigitates laterally with the Deep Conglomerate Formation, the base being taken at the top of the highest bed of conglomerate in the underlying formation. In the Blairgowrie area the base occurs at the top of the highest bed of conglomerate in the Hatton Conglomerate Member.
Definition of Upper Boundary: Generally conformable, locally diachronous to some extent. Placed at the base of poorly-sorted, massive or laminated red siltstone of Cromlix Mudstone Formation, where this overlies fine- to medium-grained cross-bedded sandstone. Upper boundary may be locally interfingered with the Cromlix Mudstone Formation or the Campsie Limestone Member near Pittendreich.
Thickness: Up to 880 m thick in Kincardineshire, typically 1500-2000 m in northern Midland Valley, passing laterally into the Deep Conglomerate Formation towards the north-east.
Geographical Limits: North-eastern Midland valley, between Drumlithie and the River South Esk.
Parent Unit: Scone Sandstone Formation (SCN)
Previous Name(s): Tannadice Formation (*943)
Scone Sandstone Formation (SCN)
Dunblane Formation (-220)
Arbroath Sandstones (-4365)
Scone Formation (-1806)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Banks of Annaty Burn, Scone. 
Reference Section  Banks of Bervie Water, near Corbies Heugh. 
Partial Type Section  Banks of River South Esk, Inshewan, near Tannadice. 
Reference(s):
Carroll, S, 1995. Geology of the Laurencekirk District. British Geological Survey Technical Report No.WA/95/81. 
Carroll, S, 1995. Geology of the Auchenblae District. British Geological Survey Technical Report. WA/95/80. 
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. 
Armstrong, M and Paterson, I B, 1970. The Lower Old Red Sandstone of the Strathmore Region. Report of the Institute of Geological Sciences No.70/12 
Armstrong, M, Paterson, I B and Browne, M A E, 1985. Geology of the Perth and Dundee district. Memoir of the British Geological Survey, Sheets 48W, 48E and 49 (Scotland). 108pp. 
Francis, E H, Forsyth, I H, Read, W A and Armstrong, M. 1970. The geology of the Stirling district. Memoir of the Geological Survey of Great Britain, Sheet 39 (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S066 S056 S057 S057