Steen River impact structure
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Template:Short description Template:Infobox terrestrial impact site Steen River is an impact structure in Alberta, Canada. It is Script error: No such module "convert". in diameter and the age is estimated to be 91 ± 7 million years (Late Cretaceous). The structure is not exposed at the surface. The original crater was partially eroded prior to burial, and lies under Script error: No such module "convert". of sediments.[1]
References
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External links
Further reading
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