Pictou Group
{{Infobox rockunit
| name = Pictou Group
| image = Red Earth Prince Edward Island 2010.jpg
| imagesize = 200
| caption = Pictou Group sandstone exposed in Prince Edward Island National Park
| type = Geological group
| age = Late Carboniferous-Permian
{{Fossil range|Late Carboniferous|Permian}}
| period = Permian
| prilithology = Sandstone
| otherlithology = Mudstone, siltstone
| namedfor = Pictou County, Nova Scotia
| namedby = W.A. Bell
| year_ts = 1926
| region = Cumberland Basin
| country = Canada
| coordinates = {{coord|45.56827|N|63.01994|W|display=inline,title|name=Pictou Group}}
| unitof =
| subunits = Balfron, Tatamagouche and Cape John Formations
| underlies = -
| overlies = Cumberland and Windsor Groups
| thickness = up to {{convert|3000|m|ft|-1}}
| extent =
| area =
| map =
| map_caption =
}}
The Pictou Group is a stratigraphic unit of Late Carboniferous to Permian age in the Cumberland Basin of Atlantic Canada.
It takes the name from Pictou County, Nova Scotia, and was first described in outcrop along the West Branch River John by W.A. Bell in 1926.Bell, W.A., 1926. Carboniferous formations of Northumberland Strait, Nova Scotia: Geological Survey of Canada, Summary Report for 1924, Part C, pp. 142C-180C.
Lithology
The Pictou Group is composed of red beds sandstone, mostly subarkose and sublitharenite. Siltstone is also present, also rarely conglomerate and coal. Fossil remains include bivalves, ostracods, fish, amphibians and reptile fragments, as well as rare plant fragments.{{Cite web
|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:011818
|title=Pictou Group
|author=Lexicon of Canadian Geologic Units
|accessdate=2013-06-16
|archive-url=https://archive.today/20130618033247/http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:011818
|archive-date=2013-06-18
|url-status=dead
}}
Distribution
The Pictou Group is present throughout the Maritimes Basin, thickness vary from {{convert|1650|m|ft|-1}} in Pictou County to {{convert|3000|m|ft|-1}} in Prince Edward Island.
Relationship to other units
The Pictou Group contains the Balfron, the Tatamagouche, and the Cape John Formations.
The Formation is mostly exposed in outcrops or covered with glacial till. It unconformably overlays the Carboniferous Cumberland Group or the Mississippian Windsor Group.
It is equivalent to the Morien Group of Cape Breton Island and Stellarton Group on central Nova Scotia. The Pictou Group is also a synonym to the Prince Edward Island Group (include the Miminegash, Egmont Bay, Kildare Capes, Hillsborough River and Orby Head formations.
References
{{reflist}}
Category:Geologic groups of Canada
Category:Carboniferous System of North America
Category:Permian System of North America
Category:Sandstone groups of Canada
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