Mall Bay Formation

Mall Bay Formation
Stratigraphic range: Ediacaran
TypeFormation
Unit ofConception Group
UnderliesGaskiers Formation
Overlies(Unconformably) Harbour Main Group
Thickness800 m (2,600 ft)
Lithology
PrimaryMudstone
OtherSandstone, Diamictite
Location
RegionNewfoundland and Labrador
CountryCanada

Outcrop distribution on Avalon peninsula, Newfoundland

The Mall Bay Formation is an Ediacaran aged formation, cropping out in Newfoundland and possibly elsewhere. It is part of the Conception Group, and contains evidence of an earlier start for the Gaskiers glaciation. It also currently contains the oldest, large macroscopic fossils from the Ediacaran.

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