Computer Code: |
HRR |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Duckmantian Substage (CB)
— Duckmantian Substage (CB) |
Lithological Description: |
Relatively soft, fine-grained yellow and brown sandstone, wedge-bedded, with layers of sandy mudstone. |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
To c.50m |
Geographical Limits: |
West Yorkshire area [Horbury, near Wakefield]. |
Parent Unit: |
Pennine Middle Coal Measures Formation (PMCM)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
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: |
E077
E078
|