| Computer Code: |
ASA |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Abereiddian Stage (O2)
— Llandeilian Stage (O3) |
| Lithological Description: |
Silicified andesitic tuffs and agglomerates with interbedded mudstones and siltstones containing a rich shelly fauna, particularly trilobites |
| Definition of Lower Boundary: |
Data unavailable. |
| Definition of Upper Boundary: |
Data unavailable. |
| Thickness: |
To 25m |
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Not Available (!)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Strahan, A, Cantrill, T C, Dixon, E E L, and Thomas, H H. 1909. The geology of the South Wales coalfield, Part X. The country around Carmarthen. Memoir of the Geological Survey of England and Wales. [London: HMSO.] |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E229
|
