| Computer Code: |
CYBB |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
St David's Series (ED)
— St David's Series (ED) |
| Lithological Description: |
Sedimentary breccia of glauconitic sandstone and pink limestone clasts, set in a matrix of glauconitic sandstone. |
| Definition of Lower Boundary: |
Unconformable on Lower Comley Sandstone Formation. |
| Definition of Upper Boundary: |
Appears to be conformably overlain by the main part of the Hill House Grits. |
| Thickness: |
3 to 4m |
| Geographical Limits: |
Comley area, Shropshire. |
| Parent Unit: |
Hill House Grits Member (HHGT)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Shootrough borehole, 500m east of Comley. Greig et al, 1968. |
| Reference(s): |
| Cobbold, E S. 1913. Fifth report on excavations among the Cambrian rocks of Comley, Shropshire, 1911. British Association for the Advancement of Science, Report for 1912, 130-141. |
| Rushton, A W A. 1974. The Cambrian of Wales and England, 43-121 in Holland, C H (editor), The Cambrian of the British Isles, Norden and Spitzbergen (Lower Palaeozoic rocks of the world, 2). [London: John Wiley and Son.] |
| Greig D C, Wright, J E, Hains, B A, and Mitchell, G H. 1968. Geology of the country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee. Memoir of the Geological Survey, Sheet 166 (England and Wales). (London: HMSO.) 379pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
