Computer Code: |
PNC |
Preferred Map Code: |
PNC |
Status Code: |
Full |
Age range: |
Llandovery Epoch (SL)
— Llandovery Epoch (SL) |
Lithological Description: |
Irregular packets and lenses of pebble and boulder conglomerate within wacke sandstone. Clasts include vein quartz, quartzite, rhyolite, microgranite, granophyre, granite, chert and mudstone. |
Definition of Lower Boundary: |
Enclosed within wacke sandstone of the Mindork Formation. |
Definition of Upper Boundary: |
Enclosed within wacke sandstone of the Mindork Formation. |
Thickness: |
Several packets of beds, some packets up to 100m thick. |
Geographical Limits: |
Southern Uplands of Scotland. |
Parent Unit: |
Mindork Formation (MDK)
|
Previous Name(s): |
Pinstane Conglomerate [Obsolete Name and Code: Use PNC]
(-1124)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Immediately south of summit of Pinstane, 13km northwest of Moffat. |
Reference(s): |
Peach, B N and Horne, J. 1899. The Silurian Rocks of Britain, Volume 1. Scotland. Memoir of the Geological Survey of the United Kingdom. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |