Belloy Formation
Belloy Formation | |
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Stratigraphic range: Permian PreꞒ Ꞓ O S D C P T J K Pg N | |
Type | Geological formation |
Underlies | Montney Formation, Fort St. John Group |
Overlies | Rundle Group, Stoddart Group |
Thickness | up to 274 metres (900 ft)[1] |
Lithology | |
Primary | Chert |
Other | Sandstone, siltstone, conglomerate, dolomite |
Location | |
Coordinates | 55°45′37″N 118°02′55″W / 55.7604°N 118.0487°W / 55.7604; -118.0487 (Imperial Belloy 12-14-78-1W6M) |
Region | Alberta, British Columbia |
Country | Canada |
Type section | |
Named for | Belloy, Alberta |
Named by | H.L. Halbertsma, 1959 |
The Belloy Formation is a stratigraphical unit of Permian age in the Western Canadian Sedimentary Basin.
It takes the name from the hamlet of Belloy, Alberta, and was first described in the Imperial Belloy 12-14-78-1W6M well by H.L. Halbertsma in 1959.[2]
Lithology and depositional setting
The Belloy Formation is composed of mixed carbonate-siliciclastic sequences of cherty dolomite and sandstone, glauconitic and quartz sandstones, phosphorite, siltstones and conglomerate with phosphatic chert pebbles. The Belloy was deposited along a northwest-trending, tidally-influenced, west-prograding shoreline. [3]
Distribution
The Belloy Formation reaches a maximum thickness of 274 metres (900 ft) in the Canadian Rockies foothills south of Fort St. John. It thins out towards the east and occurs in the sub-surface throughout the Peace River Country.
Relationship to other units
The Belloy Formation is disconformably overlain by Triassic or younger beds (Montney Formation, Fort St. John Group). It is unconformably overlies Mississippian sediments such as those of the Rundle Group.
The Belloy Formation is homotaxial with the Belcourt Formation and Kindle Formation of the Rocky Mountains.
References
- ^ Lexicon of Canadian Geologic Units. "Belloy Formation". Archived from the original on 2012-07-08. Retrieved 2009-02-12.
- ^ Halbertsma, Henk Leendert, 1959. Nomenclature of Upper Carboniferous and Permian strata in the subsurface of the Peace River area; Canadian Society of Petroleum Geologists, Journal of the Alberta Society of Petroleum Geologists, vol. 7, no. 5 (May), pp.109-118.
- ^ Naqvi, I.H. (1972). "The Belloy Formation (Permian), Peace River Area, Northern Alberta and Northeastern British Columbia". Bulletin of Canadian Petroleum Geology. 20 (1).
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- Oil sands and heavy oil
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- 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
- Wapiti GRP
- Kotaneelee FM
- Dunvegan FM
- Ft. St. John GRP
- Belloy FM
- Rundle GRP
- Banff FM
- Exshaw FM
- Kotcho FM
- Tetcho FM
- Trout River FM
- Kakisa FM
- Redknife FM
- 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
- Paskapoo FM
- Scollard FM
- Wapiti GRP
- Smoky GRP
- Dunvegan FM
- Fort St. John GRP
- Bullhead GRP
- Nikanassin FM
- Fernie GRP
- Schooler Creek GRP
- Doig FM
- Montney FM
- Belloy FM
- Stoddart GRP
- Rundle GRP
- Banff FM
- Exshaw FM
- Wabamun FM
- Trout River FM
- Kakisa FM
- Redknife FM
- Woodbend GRP
- Beaverhill Lake GRP
- Elk Point GRP
- Canadian Shield
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