Computer Code: |
HTMB |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Duckmantian Substage (CB)
— Duckmantian Substage (CB) |
Lithological Description: |
Mudstone, shelly mudstone and siltstone. |
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 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): |
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. |
Ramsbottom, W H C, Calver, M A, Eagar, R M C, Hodson, F, Holliday, D W, Stubblefield, C J and Wilson, R B. 1978. A correlation of the Silesian rocks in the British Isles. Geological Society of London, Special Report No.10. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E010
E100
E126
E014
E142
E015
E020
E021
E022
E246
E027
E078
E009
S024
S025
|