Trout River Formation

Trout River Formation Stratigraphic range: Late Devonian PreЄ Є O S D C P T J K Pg N
Type	Geological formation
Underlies	Tetcho Formation
Overlies	Kakisa Formation Fort Simpson Formation
Thickness	up to 91 metres (300 ft)^[1]
Lithology
Primary	Limestone
Other	Shale, siltstone
Location
Coordinates	61°13′N 119°54′W / 61.22°N 119.90°W / 61.22; -119.90 (Trout River Formation)Coordinates: 61°13′N 119°54′W / 61.22°N 119.90°W / 61.22; -119.90 (Trout River Formation)
Region	Northwest Territories British Columbia
Country	Canada
Type section
Named for	Trout River
Named by	C.H. Crickmay, 1953

The Trout River Formation is a stratigraphical unit of Late Devonian age in the Western Canadian Sedimentary Basin.

It takes the name from the Trout River, and was first described on the banks of the river, 35 kilometres (22 mi) upstream from the Mackenzie River, by C.H. Crickmay in 1953.^[2]^[3]

Lithology

The Trout River Formation is composed bedded limestone (top), silty limestone and shale (middle), silty limestone and calcareous siltstone (base). ^[1]

Brachiopod and coral paleo-fauna can be found in outcrops.

Distribution

The Trout River Formation reaches a maximum thickness of 91 metres (300 ft).^[1] It occurs in the District of Mackenzie in outcrop and dips south into the Fort Nelson area in north-eastern British Columbia.

Relationship to other units

The Trout River Formation is conformably overlain by the Tetcho Formation and disconformably overlays the Kakisa Formation.^[1] In its western extent, it overlies and grades into the Fort Simpson Formation.

It is equivalent to the Sassenach Formation in the central Alberta Rockies, with the Graminia Formation in central Alberta, the Crowfoot Formation in southern Alberta, the Torquay Formation in Saskatchewan and Lyleton Formation in Manitoba.

References

1 2 3 4 Lexicon of Canadian Geologic Units. "Trout River Formation". Retrieved 2009-03-01.
↑ Crickmay, C.H., 1953. New Spiriferidae from the Devonian of western Canada. Pub. by author, Imperial Oil Limited, Calgary, 11p.
↑ Crickmay, C.H., 1957. Elucidation of some Western Canada Devonian Formations; published by the author, Imperial Oil Limited, Calgary, Alberta, 14 p.

Western Canadian 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

Fort Nelson area	Wapiti GRP Kotaneelee FM Dunvegan FM Ft. St. John GRP Sully FM SikanniFM Buckinghorse FM Scatter FM Belloy FM Rundle GRP Debolt FM Shunda FM Pekisko FM Banff FM Exshaw FM Kotcho FM Tetcho FM Trout River FM Kakisa FM Redknife FM Jean Marie MBR Fort Simpson FM Horn River FM Muskwa FM Waterways FM Slave Point FM Watt Mountain FM Muskeg FM Sulphur Point FM Presqu'ile FM Pine Point FM Keg River FM Chinchaga FM Canadian Shield

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

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