| Computer Code: |
MALG |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Holkerian Substage (CQ)
— Pendleian Substage (CE) |
| Lithological Description: |
[Obsolete: use GSCL]
Dark limestones, often weathering white with subsidiary chert and sandstone. |
| Definition of Lower Boundary: |
Drawn at the base of the Seventh Limestone Formation where it rests conformably on Cockermouth Lavas (locally) elsewhere by Lower Palaeozoic Rocks. |
| Definition of Upper Boundary: |
Drawn at the conformable upward passage of the First Limestone Formation of the Hensingham Group to the grit of the Hensingham Grit Formation of the Hensingham Group. |
| Thickness: |
Not known. |
| Geographical Limits: |
West Cumberland, Maryport, (Cumbria). |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Maryport, Cumbria. |
| Reference(s): |
| Eastwood, T. 1930. The geology of the Maryport district. Memoir of the Geological Survey of Great Britain. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E246
E245
E244
E231
E041
|
