| Computer Code: |
MBG |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Arundian Substage (CJ)
— Holkerian Substage (CQ) |
| Lithological Description: |
[Obsolete: use FELL] Obsolete term Border Group, Middle is replaced by Fell Sandstone Formation, Lumsden et al, 1968; Day, 1970. |
| 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: |
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): |
| Lumsden G I, Tulloch W, Howells M F and Davies A. 1967. The geology of the neighbourhood of Langholm. Memoir of the Geological Survey, Sheet 11 (Scotland). |
| Day, J B W, and others. 1970. Geology of the neighbourhood around Bewcastle. Memoir of the British Geological Survey, Sheet 12. (England and Wales). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
