Computer Code: |
DBB |
Preferred Map Code: |
notEntered |
Status Code: |
Pending Upgrade |
Age range: |
Abereiddian Stage (O2)
— Abereiddian Stage (O2) |
Lithological Description: |
[Obsolete: use ABGW]
Grey silty graptolitic mudstones with thin tuffaceous horizons. |
Definition of Lower Boundary: |
Awaits modern stratigraphical study. |
Definition of Upper Boundary: |
Awaits modern stratigraphical study. |
Thickness: |
Unspecified |
Geographical Limits: |
Not specified. |
Parent Unit: |
none recorded or not applicable
|
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: |
E245
E244
E229
E210
|