Bull Arm Formation
The Bull Arm Formation is a volcanic formation cropping out in Newfoundland, the youngest of the Musgravetown Group. It is defined as everything between the first and last volcanic horizon, with a recognition that some sandstones will be interbedded, and its start and finish may vary across the region depending on how widespread volcanic horizons are in practice.
| Bull Arm Formation | |
|---|---|
Stratigraphic range: | |
| Type | Formation |
| Unit of | Musgravetown Group |
| Underlies | Big Head Formation, Rocky Harbour Formation |
| Overlies | Cannings Cove Formation |
| Lithology | |
| Primary | Volcanics |
| Location | |
| Region | Newfoundland |
| Country | Canada |
Occurrence of the Bull Arm Formation in southeastern Newfoundland | |
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