| Computer Code: |
BBK |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Chokierian Substage (CH)
— Chokierian Substage (CH) |
| Lithological Description: |
Thickly bedded, coarse-grained sandstone. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
To c.25m |
| Geographical Limits: |
West Yorkshire area [Brocka Bank, near Ilkley]. |
| Parent Unit: |
Samlesbury Formation (SAML)
|
| 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: |
|
E069
|
