Bull Arm Formation Explained

Type:Formation
Period:Ediacaran
Prilithology:Volcanics
Unitof:Musgravetown Group
Underlies:Big Head Formation, Rocky Harbour Formation[1]
Overlies:Cannings Cove Formation[2]
Map:Bull Arm Formation map.svg

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]

Notes and References

  1. 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.
  2. 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.
  3. 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.
  4. Bedrock geology of the Cape St. Mary's Peninsula, southwest Avalon Peninsula, Newfoundland. . Fletcher, T. P.. 2006 . 117.

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