The BGS Lexicon of Named Rock Units — Result Details

Corsewall Formation

Computer Code: CLG Preferred Map Code: CLG
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Boulder conglomerate and wacke turbidite unit.
Definition of Lower Boundary: Not seen (Faulted: Glen App fault west of Loch Ryan).
Definition of Upper Boundary: Not seen (faulted).
Thickness: c.1700m
Geographical Limits: Southern Uplands, south Scotland.
Parent Unit: Tappins Group (TAP)
Previous Name(s): Glen App Group [Obsolete Name And Code: Use CLG] (GAP)
Corsewall Group (-4548)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Coast section, Rhins of Galloway. 
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. 
Floyd, J D and Kimbell, G S, 1995. Magnetic and tectonostratigraphic correlation at a terrane boundary: the Tappins Group of the Southern Uplands. Geological Magazine, 132, 515-21. 
Kelling, G. 1960. The stratigraphy and structure of the Ordovician rocks of the Rhinns of Galloway. Quarterly Journal of the Geological Society, Vol.117, 37-75. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S007 S001 S003