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Musgravetown Group

From Wikipedia, the free encyclopedia
Musgravetown Group
Stratigraphic range: Ediacaran
TypeGroup
Sub-units

(in Random Island map area[1])

(elsewhere?)[2]

(on Cape St Mary's Peninsula[3])

UnderliesBonavista Group (unconformably)
OverliesConnecting Point Group
Location
RegionNewfoundland
CountryCanada

Occurrence of the Musgravetown Group in southeastern Newfoundland

The Musgravetown Group is a terminal Ediacaran stratigraphic group of terrestrialish sandstones, lavas and tuffs[4] cropping out in Newfoundland.

It corresponds temporally to the Signal Hill Group further east.

Mills and Sandeman (2021) proposed elevating the Musgravetown Group to supergroup rank, subdivided into the Crown Hill Group, Rocky Harbour Group and Bull Arm Group.[6]

References

[edit]
  1. Myrow, P (1995). "Neoproterozoic rocks of the Newfoundland Avalon Zone". Precambrian Research. 73 (1–4): 123–136. Bibcode:1995PreR...73..123M. doi:10.1016/0301-9268(94)00074-2.
  2. 1 2 A. F. King, S. P. Colman-Sadd; J. P. Hayes (eds.), GEOLOGY OF THE AVALON PENINSULA, NEWFOUNDLAND (parts of 1K, 1L, 1M, 1N and 2C) Map 88-01 (Digital reproduction) (PDF), archived from the original (PDF) on 2019-01-16
  3. http://www.nr.gov.nl.ca/nr/mines/geoscience/publications/report06_02.pdf. {{cite journal}}: Cite journal requires |journal= (help); Missing or empty |title= (help)
  4. 1 2 http://www.nr.gov.nl.ca/nr/mines/geoscience/publications/currentresearch/2005/obrien.pdf. {{cite journal}}: Cite journal requires |journal= (help); Missing or empty |title= (help)
  5. 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.
  6. Mills, A.; Sandeman, H. (2021). "Lithostratigraphy and lithogeochemistry of Ediacaran alkaline basaltic rocks of the Musgravetown Group, Bonavista Peninsula, northeastern Newfoundland, Canada: an extensional volcanogenic basin in the type-Avalon terrane". Atlantic Geoscience. 57 (1): 207–234. doi:10.4138/atlgeol.2021.010.