Bullhead Group

Bullhead Group
Bullhead Group
Stratigraphic range: Barremian–Albian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Sub-units	Gething Formation; Cadomin Formation
Underlies	Fort St. John Group
Overlies	Nikanassin Formation, Fernie Group, Minnes Group, Kootenay Group
Thickness	up to 900 metres (2,950 ft)
Lithology
Primary	Conglomerate, sandstone, siltstone and mudstone
Other	Coal
Location
Coordinates	56°01′N 122°08′W / 56.01°N 122.14°W
Region	British Columbia, Alberta
Country	Canada
Type section
Named by	F.H. McLearn

Bullhead Group is a stratigraphic unit of Lower Cretaceous age in the Western Canada Sedimentary Basin of northeastern British Columbia and western Alberta.^[3] It was first defined by F.H. McLearn in 1918 as the Bullhead Mountain Formation,^[2] but later was upgraded to group status. It consists of the Cadomin and Gething Formations, although some early workers included the Bluesky Formation and others in the group.^[4]

v t e Western Canada Sedimentary Basin
Hydrocarbon history	Oil sands and heavy oil Frontier exploration and development Natural gas liquids Natural gas
Depositional regions	Southern Alberta Central Alberta Northwestern Alberta Plains South-central Canadian Rockies foothills North-east Plains North-central foothills Liard River Fort Nelson Northern Rocky Mountains Fort St. John Saskatchewan Western Manitoba
Northwest plains	Paskapoo FM Scollard FM Wapiti GRP Smoky GRP Puskwaskau FM Badheart FM Muskiki FM Cardium FM Kaskapau FM Pouce Coupe MBR Doe Creek MBR Dunvegan FM Fort St. John GRP Shaftesbury FM Peace River FM Spirit River FM Bullhead GRP Bluesky FM Gething FM Cadomin FM Nikanassin FM Fernie GRP Rock Creek MBR Poker Chip Shale Nordegg MBR Schooler Creek GRP Baldonnel FM Charlie Lake FM Halfway FM Doig FM Montney FM Belloy FM Stoddart GRP Taylor Flat FM Kiskatinaw FM Golata FM Rundle GRP Debolt FM Shunda FM Pekisko FM Banff FM Exshaw FM Wabamun FM Trout River FM Kakisa FM Redknife FM Jean Marie MBR Woodbend GRP Irteton FM Fort Simpson FM Leduc FM Duvernay FM Cooking Lake FM Beaverhill Lake GRP Waterways FM Swan Hills FM Fort Vermilion FM Elk Point GRP Watt Mountain FM Gillwood MBR Presqu’ile FM Sulphur Point FM Pine Point FM Muskeg FM Zama MBR Black Shale Keg River FM Rainbow MBR Chinchaga FM Cold Lake FM Ernestina FM Basal Red Beds Granite Wash Canadian Shield

Distribution

Bullhead Group
Stratigraphic range: Barremian–Albian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Sub-units	Gething Formation Cadomin Formation
Underlies	Fort St. John Group
Overlies	Nikanassin Formation, Fernie Group, Minnes Group, Kootenay Group
Thickness	up to 900 metres (2,950 ft)^[1]
Lithology
Primary	Conglomerate, sandstone, siltstone and mudstone
Other	Coal
Location
Coordinates	56°01′N 122°08′W / 56.01°N 122.14°W / 56.01; -122.14 (Bullhead Group)
Region	British Columbia, Alberta
Country	Canada
Type section
Named by	F.H. McLearn^[2]