HiRISE Mars Image: Relict Fan-Shaped Deposits in Shalbatana Vallis Outflow Channel
Summary
A HiRISE (High Resolution Imaging Science Experiment) image of the Shalbatana Vallis outflow channel on Mars shows relict fan-shaped deposits perched on a mesa-like feature. The image aims to help evaluate stratigraphic relationships between these ancient deposits, younger fans, chaotic terrain, and the wider channel formation. The observation was taken on 25 May 2026 from an altitude of 269 km.
Source
Twitter / XHiRISE Mars Image: Relict Fan-Shaped Deposits in Shalbatana Vallis Outflow Channeluahirise.orgKey quotes
· 3 pulledIn this observation, within the Shalbatana Vallis outflow channel, there appears to be relict fan-shaped deposits towards the top of the channel wall.
These surfaces appear perched on top of a mesa-like-feature suggesting erosion of their margins.
This image can help to evaluate their stratigraphic relationships to the younger fans and the chaotic terrain/wider channel formation.
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