Fort St. John Group

Fort St. John Group
Stratigraphic range: Lower Cretaceous
TypeGeological formation
Sub-unitsCruiser Formation, Goodrich Formation, Hasler Formation, Gates Formation, Moosebar Formation, Shaftesbury Formation, Peace River Formation, Spirit River Formation, Bluesky Formation, Sully Formation, Sikanni Formation, Lepine Formation, Scatter Formation, Garbutt Formation, Buckinghorse Formation
UnderliesDunvegan Formation
OverliesBullhead Group
Thicknessup to 2,000 metres (6,560 ft)[1]
Lithology
PrimaryShale
OtherSandstone, siltstone and conglomerates
Location
RegionNortheast  British Columbia
Northwest  Alberta
Southern  Yukon
Southern  Northwest Territories
Country Canada
Type section
Named forFort St. John
Named byGeorge Mercer Dawson, 1881

The Fort St. John Group is a stratigraphic unit of Lower Cretaceous age in the Western Canada Sedimentary Basin.[2] It takes the name from the city of Fort St. John, British Columbia and was first defined by George Mercer Dawson in 1881.

  1. ^ Lexicon of Canadian Geologic Units. "Fort St. John Group". Retrieved 2009-02-11.
  2. ^ Mossop, G.D. and Shetsen, I., (compilers), Canadian Society of Petroleum Geologists and Alberta Geological Survey (1994). "The Geological Atlas of the Western Canada Sedimentary Basin, Chapter 19: Cretaceous Mannville Group of the Western Canada Sedimentary Basin". Archived from the original on 2013-08-14. Retrieved 2013-08-01.{{cite web}}: CS1 maint: multiple names: authors list (link)