Bull Arm Formation
| Bull Arm Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Musgravetown Group |
| Underlies | Big Head Formation |
| Lithology | |
| Primary | Tuff |
| Location | |
| Region | Newfoundland |
| Country | Canada |
Occurrence of the Bull Arm Formation in southeastern Newfoundland | |
The Bull Arm Formation is a volcanic Ediacaran formation cropping out in Newfoundland, the oldest of the Musgravetown Group, which is made up of Tuff, and various mafic flows.