Conception Group Explained

Conception Group
Map:	Conception Group map.svg
Type:	Group
Period:	Ediacaran
Subunits:	^[1] ^[2] Mistaken Point Formation Murphy's Cove Member Goodland Point Member Briscal Formation (in south Avalon only) Drook Formation contains a number of members and a gabbro intrusion Gaskiers Formation (in south/central Avalon only) Mall Bay Formation (in south Avalon only)
Underlies:	St. John's Group^[3]
Overlies:	Harbour Main Group (unconformably?); Holyrood Intrusive Suite

The Conception Group is a geologic group in Newfoundland and Labrador. It preserves fossils dating back to the Ediacaran period. It mainly contains turbidites, but is interrupted by a glacial diamictite, and tops out with sand and siltstones (these dated to 565 Ma). It corresponds to the lower portion of the Connecting Point Group.^[2]

In some areas the Drook Formation continues from the base of the group to the base of the Mistaken Point Formation; elsewhere (in central / south Avalon) the Briscal, Gaskiers and Mall Bay Formations wedge in.^[2]

References

Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 8 July 2014.

O'Brien, S.J. and King, A.F., 2005. Late Neoproterozoic (Ediacaran) stratigraphy of Avalon Zone sedimentary rocks, Bonavista Peninsula, Newfoundland. Current Research, Newfoundland and Labrador Department of Natural Resources Geological Survey, 5(1), pp.101-114.
https://www.gov.nl.ca/iet/files/88-01.pdf King, A.F., 1988. Geology of the Avalon Peninsula, Newfoundland. (parts of 1K, 1L, 1M, 1N and 2C)
Horizontal Surface Traces from the Fermeuse Formation, Ferryland (Newfoundland, Canada), and their Place within the Late Ediacaran Ichnological RevolutionIchnology: publications arising from ICHNIA III. Geological Association of Canada, Miscellaneous Publication. 9. 141–156. 2015. Liu. A.G.. McIlroy. D..