Conception Group | |
---|---|
Stratigraphic range: | |
Type | Group |
Sub-units | [2][3]
|
Underlies | St. John's Group[4] |
Overlies | Harbour Main Group (unconformably?); Holyrood Intrusive Suite[3] |
Location | |
Region | ![]() |
Country | ![]() |
![]() Bedrock occurrence of the Conception Group on the Avalon Peninsula, Newfoundland |
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).[1] It corresponds to the lower portion of the Connecting Point Group.[3]
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.[3]
See also
[edit]References
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
- ^ a b 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.
- ^ 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.
- ^ a b c d King, A.F., 1988. Geology of the Avalon Peninsula, Newfoundland. (parts of 1K, 1L, 1M, 1N and 2C). Newfoundland Department of Mines and Energy, Map 88 – 01.
- ^ Liu, A.G.; McIlroy, D. (2015). "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.