Pine Point Formation

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Pine Point Formation
Stratigraphic range: Givetian
Type Geological formation
Underlies Presqu'ile Formation, Sulphur Point Formation
Overlies Chinchaga Formation
Thickness up to 115 metres (380 ft)[1]
Lithology
Primary Limestone, shale
Location
Coordinates 61°00′43″N 114°15′12″W / 61.01206°N 114.25335°W / 61.01206; -114.25335 (Pine Point Formation)Coordinates: 61°00′43″N 114°15′12″W / 61.01206°N 114.25335°W / 61.01206; -114.25335 (Pine Point Formation)
Region WCSB
Country  Canada
Type section
Named for Pine Point, Northwest Territories
Named by A.E. Cameron, 1918

The Pine Point Formation is a stratigraphical unit of Givetian age in the Western Canadian Sedimentary Basin.

It takes the name from Pine Point, a promontory (and former townsite) on the south shore of the Great Slave Lake, west of Fort Resolution, and was first described in outcrop on the shore of the lake between Pine Point and Fort Resolution by A.E. Cameron in 1918.[2]

Lithology[edit]

The Pine Point Formation is composed of bituminous limestone and calcareous shale. [1]

Distribution[edit]

The Pine Point Formation reaches a thickness of up to 115 metres (380 ft) in its type locality on the shore of the Great Slave Lake.

Relationship to other units[edit]

The Pine Point Formation is overlain by the Presqu'ile Formation and Sulphur Point Formation; It conformably overlays the Chinchaga Formation and Fitzgerald Formation.[1]

It is equivalent to Muskeg Formation in northern Alberta, the Dunedin Formation in British Columbia and the upper Nahanni Formation in western Northwest Territories.

Subdivisions[edit]

The Pine Point has group status in the southern Northwest Territories, and includes:

References[edit]

  1. ^ a b c Lexicon of Canadian Geologic Units. "Pine Point Formation". Retrieved 2010-01-03. 
  2. ^ Cameron, A.E., 1918. Explorations in the vicinity of Great Slave Lake; Geological Survey of Canada, Summary Report 1917, Part C, pp. 21-28.