Strand Fiord Formation
Late Cretaceous volcanic component on Axel Heiberg Island, Nunavut, Canada
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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 Cliff 300 m (980 ft) tall.
| Strand Fiord Formation | |
|---|---|
| Stratigraphic range: | |
Dragon Cliff, including the flood basalt lava layers | |
| 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 |
| Region | Nunavut |
| Country | Canada |
| Type section | |
| Named for | Strand Fiord |
| Named by | Souther, 1963[1] |
The Strand Fiord Formation contains columnar jointing units that are usually 1 to 3 m (3 to 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 Amerasia Basin.[2] The Strand Fiord Formation is also part of the High Arctic Large Igneous Province.
