| Computer Code: |
KRK |
Preferred Map Code: |
KRK |
| Status Code: |
Full |
| Age range: |
Abereiddian Stage (O2)
— Caradoc Series (O4) |
| Lithological Description: |
Chert, red and grey siliceous mudstone with chert nodules. |
| Definition of Lower Boundary: |
Overlies Raven Gill Formation. |
| Definition of Upper Boundary: |
Is overlain by Glenkiln Shale Formation, Moffat Shale Group. |
| Thickness: |
c.120m+ |
| Geographical Limits: |
Southern Uplands of Scotland. |
| Parent Unit: |
Crawford Group (CRFD)
|
| Previous Name(s): |
Kirkton Beds [Obsolete Name and Code: Use KRK]
(-4136)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Stream section, Normangill Burn. |
| Reference Section |
Stream section, Glencaple Burn. |
| Type Section |
Pipe line trench, Abington. |
| Reference(s): |
| Floyd, J D, 1996. Lithostratigraphy of the Ordovician rocks in the Southern Uplands: Crawford Group, Moffat Shale Group, Leadhills Supergroup. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol.86, 153-165. |
| Hepworth, B C, 1981. Geology of the rocks between Leadhills and Abington, Lanarkshire. University of St.Andrews PhD thesis (unpublished). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S015
|
