The BGS Lexicon of Named Rock Units — Result Details

Portencross Sandstone Formation

Computer Code: POCR Preferred Map Code: POCR
Status Code: Full
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Brown and chocolate-brown, hard, compact, massive, cross-bedded and thinly bedded sandstone with conglomerate patches and lenses.
Definition of Lower Boundary: Faulted contact.
Definition of Upper Boundary: Faulted contact.
Thickness: From 450 m to 550 m thick.
Geographical Limits: Faulted inlier near Portencross, Sheet 21/22W.
Parent Unit: Arbuthnott-Garvock Group (ATGK)
Previous Name(s): Portencross Formation (-3621)
Portencross Beds (-1763)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Portencross on the Hunterston peninsular. 
Reference(s):
Monro, S K. 1999. Geology of the Irvine District. Memoir of the British Geological Survey, Sheet 22W and part of 21E (Scotland). 
Patterson, E M, 1949. The Old Red Sandstone rocks of the West Kilbride - Largs District, Aryshire. Transactions of the Geological Society of Glasgow, Vol.21, pp.207-236. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S022