| Computer Code: |
YDC |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Langsettian Substage (CA)
— Langsettian Substage (CA) |
| Lithological Description: |
The Yard Coal (South Yorkshire) is not the same as the Yard Coal (Notts). |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Pennine Lower Coal Measures Formation (PLCM)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
Blocking Coal (West Yorkshire)
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E126
E142
|
