| Computer Code: |
OBTV |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Neoproterozoic Era (AZ)
— Comley Series (EC) |
| Lithological Description: |
Formation not assigned to a group. Not exposed, but seen in the Bryn-teg Borehole. Underlies the Harlech Grits Group. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Rushton, A W A and Howells, M F. 1998. Stratigraphical framework for the Ordovician of Snowdonia and the Lleyn Peninsula. British Geological Survey Research Report, RR/99/08. |
| Allen, P M, and Jackson, A A. 1978. Bryn-teg Borehole, North Wales. Bulletin of the Geological Survey of Great Britain, No. 61. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
