Steen River crater

Steen River crater

Steen River is an impact structure (astrobleme) in Alberta, Canada.

It is 25 km 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 of sediments.

External links

* [http://www.unb.ca/passc/ImpactDatabase/ Earth Impact Database]
* [http://www.lpi.usra.edu/meetings/lpsc2005/pdf/2356.pdf Niccoli, M., Hildebrand, A.R. and Lawton D.C. (2005) “Seismic Velocity Study of the Rim Uplift of the Steen River Impact Crater” Lunar and Planetary Science XXXVI.]


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