The BGS Lexicon of Named Rock Units — Result Details

Dalreoch Formation

Computer Code: DLR Preferred Map Code: DLR
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Sandy and pebbly greywackes.
Definition of Lower Boundary: Faulted.
Definition of Upper Boundary: Faulted.
Thickness: About 1000 m thick.
Geographical Limits: Not defined.
Parent Unit: Tappins Group (TAP)
Previous Name(s): Dalreoch Division (-2153)
Changue Formation (-2758)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Dalreoch Burn, Colmonell, Sheet SO07. 
Reference(s):
Ince, D, 1984. Sedimentation and tectonism in the Middle Ordovician of the Girvan district, north west Scotland. Transactions of the Royal Society of Edinburgh. Earth Sciences, Vol.75 (2), p.225-237. 
Williams, A, 1962. The Barr and Lower Ardmillan Series (Caradoc) of the Girvan district, southwest Ayrshire, with descriptions of the Brachiopoda. Memoir of the Geological Society of London, No.3. 
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:
S007 S008