| Computer Code: |
AUB |
Preferred Map Code: |
AUB |
| Status Code: |
Full |
| Age range: |
Abereiddian Stage (O2)
— Abereiddian Stage (O2) |
| Lithological Description: |
Reddish-grey and greenish-grey silty calcareous mudstones. |
| Definition of Lower Boundary: |
Conformably overlies Kirkland Conglomerate. |
| Definition of Upper Boundary: |
Conformably overlain by Stinchar Limestone, lateral equivalent of Auchensoul Limestone and perhaps Confinis Flags. |
| Thickness: |
30 metres. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
Barr Group (BARR)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Auchensoul, Barr, Sheet S 008W. |
| Reference(s): |
| 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
|
