| Computer Code: |
WDR |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Bolsovian Substage (CC)
— Bolsovian Substage (CC) |
| Lithological Description: |
Sandstone, cross-bedded, brown or yellow, rarely purplish, with subordinate beds of mudstone and sandy mudstone. |
| Definition of Lower Boundary: |
The lower boundary is taken at the base of the first sandstone in the sandstone-dominated unit above fissile black mudstone of the Cambriense (Prestwich Top) Marine Band. |
| Definition of Upper Boundary: |
The upper boundary is taken at the base of a mudstone-dominated succession of the Pennine Upper Coal Measures Formation above the sandstone of the Worsley Delf Rock. |
| Thickness: |
36 - 55 m thick. |
| Geographical Limits: |
South and west Manchester. |
| Parent Unit: |
Pennine Upper Coal Measures Formation (PUCM)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
The area between Blackmoor (SD 69 01) and Miles Platting (SD 86 00); numerous exposures in the Worsley area (SD 75 01). |
| Partial Type Section |
Disused quarry, Worsley (no further details available). Location mentioned in Tonks et al, 1931. |
| Reference(s): |
| Tonks, L H, Jones, R C B, Lloyd, W and Sherlock, R L, 1931. The geology of Manchester and the south-east Lancashire Coalfield. Memoir of the Geological Survey of England and Wales. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E085
E084
|
