Blomidon Formation

Blomidon Formation
Stratigraphic range: Norian-Rhaetian
Faulted continental redbeds of the Blomidon Formation, Minas Basin North Shore, Nova Scotia
TypeGeological formation
Unit ofNewark Supergroup
UnderliesNorth Mountain Basalt
OverliesWolfville Formation
Thickness365–2,500 m (1,198–8,202 ft)
Lithology
PrimarySandstone
OtherMudstone
Location
Coordinates45°17′43″N 64°19′55″W / 45.29528°N 64.33194°W / 45.29528; -64.33194
RegionNova Scotia
CountryCanada
Type section
Named forCape Blomidon
Named byKlein, 1962

The Blomidon Formation is a unit of Upper Triassic (NorianRhaetian) 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]

  1. ^ Tanner, L.H. (1996). "Formal definition of the Lower Jurassic McCoy Brook Formation, Fundy Rift Basin, eastern Canada". Atlantic Geology. 32: 127–135. Retrieved 15 December 2012.
  2. ^ Luttrell, Gwendolyn (c. 1989). Geological Survey Bulletin: 1572. U.S. Department of the Interior, Geological Survey.