The BGS Lexicon of Named Rock Units — Result Details

Bail Hill Volcanic Group

Computer Code: BAIL Preferred Map Code: BAIL
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Lavas, pyroclastic rocks, etc, thought to be remains of a seamount volcano.
Definition of Lower Boundary: Rests on black mudstone, possiblythe the Glenkiln Shale Formation of the Moffat Shale Group.
Definition of Upper Boundary: Faulted.
Thickness: c.1200m
Geographical Limits: Bail Hill area, Sanquhar, south Scotland. Includes Peat Rig Formation and Cat Cleugh Formation.
Parent Unit: Leadhills Supergroup (LHG)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  The area around Bail Hill, north of Sanquhar, southern Scotand. 
Reference(s):
Floyd, J D, 1996. Lithostratigraphy of the Ordovician rocks in the Southern Uplands: Crawford Group, Moffat Shale Group, Leadhills Supergroup. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol.86, 153-165. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S015