Mars’ Glacial Past
Topographical relief of the river-like feature on Mars.
The National Post has put up some of the latest ESA pictures that reveal Mars’ glacial past. Included is a large, 7 km wide river valley, and what appears to be a cirque, a mountain scooped out by a glacier. The river valley shows evidence of braided streams, which are common in glaciated regions. As noted by some of the commentators, this feature is relatively young on the Martian surface, and there are few craters that have damaged the geomorphology.
A cirque near Jasper, Alberta (I apologize for the darkness, I need a better camera!).
A glacially related river bed on Mars? The ESA scientists believe the linear-style features formed long after water flowed to create the valley, possibly by glacial activity.
A braided stream in the Icefields Parkway in Alberta (if you ever get the chance to go to Alberta, it is one of the most amazing places on Earth). These are broad, sinuating rivers that originate from melting glaciers, and are constantly evolving.
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