Conception Group

TypeGroup

Sub-units^[2][3]

• 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)

UnderliesSt. John's Group^[4]

OverliesHarbour Main Group (unconformably?); Holyrood Intrusive Suite^[3]

Conception Group
Stratigraphic range: 600–565 Ma[1] (approx.) PreꞒ Ꞓ O S D C P T J K Pg N
Type	Group
Sub-units	[2][3] 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[4]
Overlies	Harbour Main Group (unconformably?); Holyrood Intrusive Suite[3]
Location
Region	Newfoundland and Labrador
Country	Canada
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]