| Computer Code: |
SGGR |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Llandovery Epoch (SL)
— Early Devonian Epoch (DL) |
| Lithological Description: |
none recorded or not applicable
|
| 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 Entered (?)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Noble, S R, David, K, Crowley, Q and Storey, C. 2004. U-Pb geochronology of igneous rocks from the Midland Valley Terrane, Northern Ireland, part 2. NERC Isotope Geosciences Laboratory Report series No. 201. |
| O'Connor, P J, Long, C B, Kennan, P S, Halliday, A N, Max, M D and Roddick, J C. 1982. Rb-Sr isochron study of the Thorr and Main Donegal Granites, Ireland. Geological Journal, Vol.17, 279-295. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
