The BGS Lexicon of Named Rock Units — Result Details

Auchensoul Limestone Formation

Computer Code: AUL Preferred Map Code: AUL
Status Code: Full
Age range: Abereiddian Stage (O2) — Abereiddian Stage (O2)
Lithological Description: Impure sandy algal limestone.
Definition of Lower Boundary: Rests conformably on Kirkland Conglomerate.
Definition of Upper Boundary: Conformably overlain and laterally transitional into Auchensoul Bridge Mudstone Formation (Ince, 1984).
Thickness: 2.5m
Geographical Limits: Stinchar Valley area, Girvan. Laterally equivalent to Auchensoul Bridge Mudstone.
Parent Unit: Barr Group (BARR)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Auchensoul Burn. 
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: