| Computer Code: |
PRO |
Preferred Map Code: |
PRO |
| Status Code: |
Full |
| Age range: |
Llandovery Epoch (SL)
— Llandovery Epoch (SL) |
| Lithological Description: |
Grey-green, gritty sandstone and shale. |
| Definition of Lower Boundary: |
Conformably overlies the Penkill Formation. |
| Definition of Upper Boundary: |
Conformably overlain by the Lauchlan Mudstone Formation. |
| Thickness: |
165 m thick. |
| Geographical Limits: |
Girvan area, south-west Scotland. |
| Parent Unit: |
Dailly Subgroup (DAI)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Lauchlan Burn (upper 60m of formation). |
| Partial Type Section |
Penwhapple Burn, Girvan, Sheet SO08W, (lower 90m of formation). |
| Reference(s): |
| Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. |
| Cocks, L R M and Toghill, P, 1973. The biostratigraphy of the Silurian rocks of the Girvan District, Scotland. Journal of the Geological Society of London, Vol. 129, 209-243. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S008
|
