| Computer Code: |
AUL |
Preferred Map Code: |
AUL |
| Status Code: |
Full |
| Age range: |
Abereiddian Stage (O2)
— Abereiddian Stage (O2) |
| Lithological Description: |
Impure sandy algal limestone. |
| Definition of Lower Boundary: |
Rests conformably on Kirkland Conglomerate. |
| Definition of Upper Boundary: |
Conformably overlain and laterally transitional into Auchensoul Bridge Mudstone Formation (Ince, 1984). |
| Thickness: |
2.5m |
| Geographical Limits: |
Stinchar Valley area, Girvan. Laterally equivalent to Auchensoul Bridge Mudstone. |
| Parent Unit: |
Barr Group (BARR)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Auchensoul Burn. |
| Reference(s): |
| 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. |
| Ince, D, 1984. Sedimentation and tectonism in the Middle Ordovician of the Girvan district, north west Scotland. Transactions of the Royal Society of Edinburgh. Earth Sciences, Vol.75 (2), p.225-237. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S008
|
