The Bull Arm Formation is a volcanic formation cropping out in Newfoundland, the youngest of the Musgravetown Group.[3] 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.[4]
| Bull Arm Formation | |
|---|---|
Stratigraphic range: | |
| Type | Formation |
| Unit of | Musgravetown Group |
| Underlies | Big Head Formation, Rocky Harbour Formation[1] |
| Overlies | Cannings Cove Formation[2] |
| Lithology | |
| Primary | Volcanics |
| Location | |
| Region |  Newfoundland |
| Country |  Canada |
 Occurrence of the Bull Arm Formation in southeastern Newfoundland | |
References
edit- ^ Normore, L.S. (2012). Geology of the Random Island map area (NTS 2C/04), Newfoundland. Curr. Res. Newfoundl. Labrador Dep. Nat. Resour. Geol. Surv. Report 12-, 121–145.
- ^ Normore, L.S. (2012). Geology of the Random Island map area (NTS 2C/04), Newfoundland. Curr. Res. Newfoundl. Labrador Dep. Nat. Resour. Geol. Surv. Report 12-, 121–145.
- ^ Normore, L.S. (2012). Geology of the Random Island map area (NTS 2C/04), Newfoundland. Curr. Res. Newfoundl. Labrador Dep. Nat. Resour. Geol. Surv. Report 12-, 121–145.
- ^ Fletcher, T. P. (2006). "Bedrock geology of the Cape St. Mary's Peninsula, southwest Avalon Peninsula, Newfoundland" (PDF): 117.
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