| Computer Code: |
CGO |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Cambrian Period (E)
— Cambrian Period (E) |
| Lithological Description: |
[Obsolete: use OCO] Interbedded pebbly, micaceous greywacke sandstones and cleaved green silty and sandy mudstones. |
| Definition of Lower Boundary: |
Rests unconformably on chlorite schists of the Precambrian Mona Complex. |
| Definition of Upper Boundary: |
Overlain unconformably by cleaved dark grey Ordovician mudstones. |
| Thickness: |
Not defined. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Llandudno, Sheet 94. |
| Reference(s): |
| Greenly, E. 1919. Geology of Anglesey. Memoir of the Geological Survey, UK. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E094
|
