Computer Code: |
CCK |
Preferred Map Code: |
CCK |
Status Code: |
Full |
Age range: |
Cisuralian Epoch (PLC)
— Cisuralian Epoch (PLC) |
Lithological Description: |
Fine- to medium-grained, well sorted, red quartz sandstone with large scale aeolian cross-bedding. |
Definition of Lower Boundary: |
Rests unconformably on Lower Palaeozoic strata or on basal Permian breccias. |
Definition of Upper Boundary: |
The Corncockle Sandstone Formation is stratigraphically the highest unit in the district. |
Thickness: |
900m+ on geophysical evidence. |
Geographical Limits: |
Lochmaben Basin, Dumfriesshire, south-western Scotand (Southern Uplands) |
Parent Unit: |
Stewartry Group (STEW)
|
Previous Name(s): |
Un-named Permian sandstone of desert dune origin [Obsolete Name and Code: Use CCK, THHS]
(-4529)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Corncockle Quarry, a disused sandstone quarry, 700m NNE of the village of Templand, Dumfriesshire |
Reference(s): |
Brookfield, M E. 1978. Revision of the Stratigraphy of Permian and Supposed Permian Rocks of Southern Scotland. Geologische Rundschau, Vol. 67, 110-143. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S010
|