| Computer Code: |
CNW |
Preferred Map Code: |
CNW |
| Status Code: |
Pending Upgrade |
| Age range: |
Llandovery Epoch (SL)
— Llandovery Epoch (SL) |
| Lithological Description: |
Thin- to medium-bedded greywacke with variable proportion of interbedded silty mudstone including some thick (to 40m) units. Includes pockets of distinctive thick-bedded parallel laminated greywacke with abundant concretions. |
| Definition of Lower Boundary: |
Faulted. |
| Definition of Upper Boundary: |
Faulted. |
| Thickness: |
Not defined. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
Hawick Group (HWK)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Cairnharrow, west side, Sheet S04E. |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S004
S001
S003
S004
|
