Strand Fiord Formation Stratigraphic range: Late Cretaceous |
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Type | Geological formation |
Underlies | Kanguk Formation |
Overlies | Bastion Ridge Formation |
Lithology | |
Primary | Sill |
Other | Pyroclastic flow |
Location | |
Coordinates | 79°13′52″N 91°52′08″W / 79.231°N 91.869°W |
Region |
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Type section | |
Named for | Strand Fiord |
Named by | Souther, 1963 |
The Strand Fiord Formation is a Late Cretaceous volcanic component, located on northwestern and west-central Axel Heiberg Island, Nunavut, Canada. The formation contains flood basalts which are found on western Axel Heiberg Island at Dragon Cliffs 300 m (984 ft) tall.
The Strand Fiord Formation contains columnar jointing units that are usually 1 m (3 ft) to 3 m (10 ft) in diameter. The formation is interpreted to represent the cratonward extension of the Alpha Ridge, a volcanic ridge that was active during the formation of the Amerasian Basin. The Strand Fiord Formation is also part of the High Arctic Large Igneous Province.