| Computer Code: |
ASC |
Preferred Map Code: |
ASC |
| Status Code: |
Full |
| Age range: |
Caradoc Series (O4)
— Caradoc Series (O4) |
| Lithological Description: |
A localized thick conglomerate within the generally flaggy Ardwell Farm Formation. |
| Definition of Lower Boundary: |
Base of conglomerate, resting on flaggy sandstone. |
| Definition of Upper Boundary: |
Taken at top of conglomerate, overlain by flaggy sandstone. |
| Thickness: |
To 70m |
| Geographical Limits: |
Girvan area, southwest Scotland. |
| Parent Unit: |
Ardwell Farm Formation (ARD)
|
| Previous Name(s): |
Assel Conglomerate [Obsolete Name and Code: Use ASC]
(-4439)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Ground north of the Assel Water, southeast of Girvan. Williams, 1962. |
| Reference(s): |
| Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W, Parkes, M A, Rushton, A W A and Woodcock, N H. 2000. A revised correlation of Ordovician rocks in the British Isles. Geological Society Special Report, No.24. |
| Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. |
| Williams, A, 1962. The Barr and Lower Ardmillan Series (Caradoc) of the Girvan district, southwest Ayrshire, with descriptions of the Brachiopoda. Memoir of the Geological Society of London, No.3. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
