Steen River crater
From Wikipedia, the free encyclopedia
Steen River is an impact structure in Alberta, Canada.
It is 25 km (16 mi) in diameter and the age is estimated to be 91 ± 7 million years (Lower Cretaceous). The crater is not exposed at the surface. The crater was partially eroded prior to burial, and lies under 200 m (660 ft) of sediments.[1]
References[edit]
- ^ "Steen River". Earth Impact Database. University of New Brunswick. Retrieved 2009-08-16.
External links[edit]
Coordinates: 59°30′N 117°38′W / 59.500°N 117.633°W
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