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) [Obsolete Name and Code: Use GNSA, REMU]
(-4068)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
The coastal section from Greenheugh point to Red Rock, about 2 km east of Cockburnspath, Borders. Browne et al., 2001. |
Reference(s): |
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 Unpublished PhD thesis, University of Leeds.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 Unpublished PhD thesis, University of Cambridge.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: |
S034
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