Computer Code: |
MEL |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Asbian Substage (CR)
— Asbian Substage (CR) |
Lithological Description: |
Fine-grained, pale grey limestones with pseudobreccias and calcite mudstones, and some bands of shaly mudstone and sandstone. The uppermost part of the formation is the Robinson Limestone (bed), which comprises alternations of limestone, shaly mudstone and sandstone. |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
From 35 to c.107m. The uppermost (Robinson Limestone) bed is generally 4 to 6m thick, but reaches 25m as it approaches the Stainmore Trough. |
Geographical Limits: |
Alston Block. |
Parent Unit: |
Great Scar Limestone Group (GSCL)
|
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: |
E031
E025
E024
E020
E018
E026
|