Bull Arm Formation
| Bull Arm Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation | 
| Unit of | Musgravetown Group | 
| Underlies | Big Head Formation[1] | 
| Lithology | |
| Primary | Tuff[1] | 
| 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.[1]
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