Computer Code: |
POYN |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Floian Age (OFL)
— Darriwilian Age (ODW) |
Lithological Description: |
Pale green-grey mudstone. |
Definition of Lower Boundary: |
Stratigraphic contact with Mynydd y Garn Formation (GARN) or unconformably upon Ordovican rocks of the Cemaes Group (CMS) or Neoproterozoic rocks, e.g. Mona Gneiss Assemblage - NMG. |
Definition of Upper Boundary: |
Stratigraphic contact with Capel Parc Formation (CAPC). |
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
Anglesey. |
Parent Unit: |
Llyn Alaw Group (ALAW)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
none recorded or not applicable |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |