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
|