The BGS Lexicon of Named Rock Units — Result Details

Moffat Shale Group

Computer Code: MFS Preferred Map Code: MFS
Status Code: Full
Age range: Caradoc Series (O4) — Llandovery Epoch (SL)
Lithological Description: Black shale, grey shale, bentonite, tuff
Definition of Lower Boundary: Conformably overlies Kirkton Formation of Crawford Group.
Definition of Upper Boundary: Overlain by various Ordovician and Silurian wacke units.
Thickness: Up to c.110m
Geographical Limits: Southern Uplands of Scotland and Longford-Down Inlier, Ireland.
Parent Unit: Not Applicable (-)
Previous Name(s): Moffat Series (-1691)
Moffat Black Shale Group [Obsolete Name And Code: Use MFS] (MBSG)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  See constituent Formations 
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. 
Lapworth, C, 1877. The Moffat Series. Quarterly Journal of the Geological Society of London, Vol.34, 240-346. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S005 S005 S001 S008 S008 S004 S004 S003 S015 S025 S016 S016 S025 S024 S015 S034