| Computer Code: |
NSR |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Furongian Epoch (EF)
— Tremadocian Age (OTR) |
| Lithological Description: |
Grey to white turbiditic metasandstone and interbedded blue-grey silty metamudstone. Locally units of quartzite. |
| Definition of Lower Boundary: |
Conformable contact with Holyhead Formation (HHD). |
| Definition of Upper Boundary: |
Conformable contact with New Harbour Formation (NNH). |
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Anglesey. |
| Parent Unit: |
Holy Island Group (NHI)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Treagus, J E, Treagus, S H, and Woodcock, N H. 2013. The significance of the boundary between the Rhoscolyn and New Harbour formations on Holy Island, North Wales, to the deformation history of Anglesey. Geological Magazine, 150(3), 519-535. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
