Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| Avalonia  | |
|---|---|
| RT | Avalon Zone | 
| Great Britain | |
| Canada | |
| England | |
| Ireland | |
| North America | |
| plate tectonics | |
| United States | |
| Wales | |
| SN | Paleocontinent which separated from Gondwana in the lower Paleozoic. Western Avalonia is used in E North America; Eastern Avalonia, in the S British Isles. Indexed with ages, countries and continents as applicable. | 
| Avalonian Orogenic Phase  | |
|---|---|
| USE | Avalonian Orogeny | 
| Avalonian Orogeny  | |
|---|---|
| BT | Chronostratigraphic Units | 
| .Precambrian | |
| ..Avalonian Orogeny | |
| UF | Avalonian Orogenic Phase | 
| RT | orogeny | 
| North America | |
| Avalon Zone | |
| SN | Used in connection with orogenic event near the end of Precambrian time along E border of North America. Named for the Avalon Peninsula in SE Newfoundland. Before 1978, search Avalonian AND orogeny. |