Computer Code: |
BNM1 |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Langsettian Substage (CA)
— Langsettian Substage (CA) |
Lithological Description: |
The Brown Metal Coals are seams of variable quality and thickness and are not widely worked. They are commonly split and washed out by the Birstall Rock. The First and Second Brown Metals coalesce in the west. |
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): |
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: |
E078
E070
E077
|