The BGS Lexicon of Named Rock Units — Result Details

Greenheugh Sandstone Formation

Computer Code: GNSA Preferred Map Code: GNSA
Status Code: Full
Age range: Famennian Age (DA) — Famennian Age (DA)
Lithological Description: A red-brown, mainly medium- to coarse-grained sandstone with some locally pale yellow and green coloured beds and subordinate intercalated thin red mudtones and silstones.
Definition of Lower Boundary: The top of the predominantly argillaceous Redheugh Mudstone Formation.
Definition of Upper Boundary: The first cornstones in the sandstones of the Kinnesswood Formation.
Thickness: Estimated at about 170 m thick.
Geographical Limits: Southern Uplands Terrane of Scotland.
Parent Unit: Stratheden Group (SAG)
Previous Name(s): Upper Old Red Sandstone (Part Of) (-4068)
Alternative Name(s): none recorded or not applicable
Type Section  The coastal section from Greenheugh point to Red Rock, about 2 km east of Cockburnspath, Borders. Browne et al., 2001. 
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. 
Salter, T. 1992. Facies, geometrical and palaeocurrent analysis of well exposed alluvial reservoir analogues and applications to subsurface studies. Unpublished PhD thesis, University of Leeds. 
Greig, D C. 1988. Geology of the Eyemouth district. Memoir of the British Geological Survey, Sheet 34 (Scotland). 
Balin, D F. 1993. Upper Old Red Sandstone sedimentation in the eastern Midland Valley area, Scotland. Unpublished PhD thesis, University of Cambridge. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: