| Computer Code: |
ISMB |
Preferred Map Code: |
H1a1- |
| Status Code: |
Index Level |
| Age range: |
Chokierian Substage (CH)
— Chokierian Substage (CH) |
| Lithological Description: |
Mudstone. |
| 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: |
Craven Group (CRAV)
|
| Previous Name(s): |
Homoceras Subglobosum Marine Band [Obsolete Name and Code: Use ISMB]
(-3488)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. |
| Waters, C N, Waters, R A, Barclay, W J, and Davies, J R. 2009. Lithostratigraphical framework for Carboniferous successions of Southern Great Britain (Onshore). British Geological Survey Research Report, RR/09/01. 184pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E059
|
