The BGS Lexicon of Named Rock Units — Result Details

Doughend Sandstone Member

Computer Code: DHS Preferred Map Code: DHS
Status Code: Full
Age range: Late Devonian Epoch (DU) — Late Devonian Epoch (DU)
Lithological Description: Mainly sandstone with a few cornstone concretions.
Definition of Lower Boundary: The lower boundary is inferred to disconformably overlie redbrown sandstone of the Late Devonian Kelly Burn Sandstone Formation, Stratheden Group (Browne et al., 2001).
Definition of Upper Boundary: The upper boundary is conformably overlain by redbrown silty mudstone, with carbonate-cemented concretions, of the Foulport Mudstone Member of the Kinnesswood Formation.
Thickness: About 30 m. BGS (2008) gave a generalised thickness of 36 m for the member.
Geographical Limits: The Doughend Sandstone Member is known only on the island of Great Cumbrae, where it is exposed on the southwest of the island in the vicinity of Doughend Hole [NS 149 544]. The member is mapped at outcrop north-eastwards across the island. The outcrop is limited to the east by the Kaimes Bay Fault where the member is part of the hangingwall sequence.
Parent Unit: Kinnesswood Formation (KNW)
Previous Name(s): Dug Head Sandstone Member [Obsolete Name and Code: Use DHS] (-3361)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  The type section comprises coastal exposures on the southwest side of Great Cumbrae Island, North Ayrshire [NS 149 549 to 149 544]. There the boundaries with over and underlying strata are faulted, though they have been mapped as stratiform elsewhere across the island (see Monro, 1999). 
Reference(s):
Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. 
Monro, S K. 1999. Geology of the Irvine District. Memoir of the British Geological Survey, Sheet 22W and part of 21E (Scotland). 
Browne, M A E, McKirdy, A, and McAdam, A D. 2001. Fife and Tayside: a landscape fashioned by geology. (Perth: Scottish Natural Heritage.) 
British Geological Survey. 2002a. Hawk's Nib and Little Cumbrae - west. Scotland Sheet NS15SW. Solid and Drift. 1:10 000. (Edinburgh: British Geological Survey.) 
British Geological Survey. 2002b. Hunterston, Millport and Little Cumbrae - east. Scotland Sheet NS15SE. Solid and Drift. 1:10 000. (Edinburgh: British Geological Survey.) 
British Geological Survey. 2002c. Great Cumbrae - east. Scotland Sheet NS15NE. Solid and Drift. 1:10 000. (Edinburgh: British Geological Survey.) 
British Geological Survey. 2005. Irvine. Scotland Sheet 22W, part 21E. Bedrock. 1:50 000. (Keyworth, Nottingham: British Geological Survey.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable