The BGS Lexicon of Named Rock Units — Result Details

Fence Member

Computer Code: FNC Preferred Map Code: FNC
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Mudstone (unfossiliferous to date).
Definition of Lower Boundary: Basal member of the Doularg Formation: succeeds the sandstone, pebbly grit and conglomerate of the Craigmalloch Formation.
Definition of Upper Boundary: Succeeded by the Gorse Member of the Doularg Formation, consisting of poorly-bedded mudstone with decalcified limestone nodules containing a brachiopod and trilobite fauna.
Thickness: 1.5m seen, possibly up to 4m total.
Geographical Limits: Girvan area, southwest Scotland.
Parent Unit: Doularg Formation (DOUL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Plantation Burn, Doularg Hill, c.1km eastnortheast of Doularg Farm. Ingham and Tripp, 1991. 
Ingham, J K and Tripp, R P. 1991. The trilobite fauna of the Middle Ordovician Doularg Formation of the Girvan district, Scotland and its palaeoenvironmental significance. Transactions of the Royal Society of Edinburgh, Vol.82 (1), p. 27 - 54. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable