Blomidon Formation
Stratigraphic range: Norian-Rhaetian
Faulted continental redbeds of the Blomidon Formation, Minas Basin North Shore, Nova Scotia
Type	Geological formation
Unit of	Newark Supergroup
Underlies	North Mountain Basalt
Overlies	Wolfville Formation
Thickness	365–2,500 m (1,198–8,202 ft)
Lithology
Primary	Sandstone
Other	Mudstone
Location
Coordinates	45°17′43″N 64°19′55″W / 45.29528°N 64.33194°W / 45.29528; -64.33194
Region	Nova Scotia
Country	Canada
Type section
Named for	Cape Blomidon
Named by	Klein, 1962

The Blomidon Formation is a unit of Upper Triassic (Norian–Rhaetian) sedimentary rocks, which outcrops in Nova Scotia. At outcrop they reach a maximum thickness of 365 metres (1,198 ft), but up to 1,168 metres (3,832 ft) has been proven from well data and a thickness of up to 2,500 metres (8,200 ft) has been inferred from seismic reflection data. It overlies the mainly Carnian Wolfville Formation and underlies the North Mountain Basalt.^[1] The type section is exposed between Cape Blomidon (45°17′43″N 64°19′55″W / 45.29528°N 64.33194°W / 45.29528; -64.33194) and Paddy Island (45°11′51″N 64°21′34″W / 45.197372°N 64.359411°W / 45.197372; -64.359411).^[2]