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): Changue Formation (-2758)
Dalreoch Division (-2153)
Alternative Name(s): none recorded or not applicable
Type Area  Dalreoch Burn, Colmonell, Sheet SO07. 
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