The BGS Lexicon of Named Rock Units — Result Details

Gortnagross Sandstone Member

Computer Code: GOR Preferred Map Code: GOR
Status Code: Full
Age range: Visean Stage (CV) — Visean Stage (CV)
Lithological Description: Silica rich sandstone.
Definition of Lower Boundary: Probably conformable on red dolomitic limestone (Kildress Limestone Member).
Definition of Upper Boundary: Conformable with unnamed overlying interbedded sequence of red mudstone and sandstone in Derryloran Formation.
Thickness: 12m
Geographical Limits: Gortnagross and Lower Kildress Townlands, south east Tyrone, Northern Ireland.
Parent Unit: Derryloran Formation (DLN)
Previous Name(s): Upper Sandstone (-3792)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Kildress Sand Borehole 26/6 (GSNI), Northern Ireland. 
Type Section  Pit, right hand bank Ballinderry River. 
Reference Section  Kildress Sand Borehole 26/5 (GSNI), Northern Ireland. 
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
N26