The BGS Lexicon of Named Rock Units — Result Details

Straiton Subgroup

Computer Code: STNG Preferred Map Code: STNG
Status Code: Full
Age range: Wenlock Epoch (SW) — Wenlock Epoch (SW)
Lithological Description: Flaggy sandstones, gritty sandstones and conglomerates.
Definition of Lower Boundary: Conformable junction with the Blair Shale Formation, the topmost unit of the underlying Dailly Subgroup.
Definition of Upper Boundary: Unconformably overlain by the Inverclyde Group.
Thickness: About 270 m thick.
Geographical Limits: The Girvan area of south-west Scotland.
Parent Unit: Girvan Group (GVN)
Previous Name(s): Dailly Group [Obsolete Name And Code: Use DAI Or STNG Depending On Age] (DLY)
Penwhapple North Group [Obsolete Name And Code: Use DAI And STNG Subgroups] (PNO)
Straiton Group (*108)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Main outcrop between Girvan and Straiton. 
Reference(s):
Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. 
Cameron, I B, Stone, P and Smellie, J, 1986. Geology of the Country around Girvan. Explanation of 1:50 000 sheet. British Geological Survey, Sheet 7, Scotland. 
Floyd, J D and Williams, M. 2003. A revised correlation of Silurian rocks in the Girvan district, SW Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol. 93 (for 2002), 383-92. 
Cocks, L R M and Toghill, P, 1973. The biostratigraphy of the Silurian rocks of the Girvan District, Scotland. Journal of the Geological Society of London, Vol. 129, 209-243. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable