St. John's Group : Wikipedia, the free encyclopedia

St. John's Group

St John's Group
Stratigraphic range: Ediacaran ^[1] (post-565 Ma) PreꞒ Ꞓ O S D C P T J K Pg N
Type	Group
Sub-units	^[2] Renews Head Formation Fermeuse Formation (Other mmbrs?) Back Cove Member Trepassey Formation Port Union Member Catalina Member
Underlies	Signal Hill Group^[3]
Overlies	Conception Group^[3]
Lithology
Primary	Shale^[4]
Location
Region	Newfoundland and Labrador
Country	Canada
Occurrence of St. John's Group in the bedrock of Newfoundland

The St John's Group is a fossiliferous shale-dominated Ediacaran geologic group in Newfoundland and Labrador, younger than 565 ± 3 million years ago.^[1]

It corresponds to the upper portion of the Connecting Point Group^[5]

References

^ ^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.; King, A. F. (2005). "Late neoproterozoic (ediacaran) stratigraphy of avalon zone sedimentary rocks, Bonavista Peninsula, Newfoundland" (PDF). Geological Report.
^ ^a ^b A.G. Liu; D. McIlroy (September 2014). "Horizontal Surface Traces from the Fermeuse Formation, Ferryland (Newfoundland, Canada), and their Place within the Late Ediacaran Ichnological Revolution" (PDF). Geological Association of Canada - Special Paper (9).^{[dead link]}
^ Management plan. Fortune head ecological reserve Archived 14 July 2017 at the Wayback Machine
^ 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)