{{Short description|Region in Mars}} {{Infobox feature on celestial object |name = Hydraotes Chaos |image = [[Image:Hydraotes Chaos.JPG|200px]] |caption = Hydraotes Chaos, as seen by [[HiRISE]]. Click on image to see channels and layers. The scale bar is 1000 meters long. |coordinates = {{coord|0.8|N|35.4|W|globe:mars_type:landmark|display=inline,title}} }} '''Hydraotes Chaos''' is a broken-up region in the [[Oxia Palus quadrangle]] of [[Mars]], located at 0.8° North and 35.4° West. It is 417.5&nbsp;km across and was named after a classical [[albedo]] feature name.<ref>{{cite web|url=https://planetarynames.wr.usgs.gov/|title=Planetary Names: Welcome|work=usgs.gov|access-date=11 September 2015}}</ref> More information and more examples of chaos regions can be found at [[Martian chaos terrain]]. The area contains small conical edifices, called [[Hydraotes Colles]],<ref>{{cite web|url=https://planetarynames.wr.usgs.gov/Feature/15268|website=Planetary Names|publisher=[[USGS]]|title=Planetary Names: Collis, colles: Hydraotes Colles on Mars}}</ref> which were interpreted as the Martian equivalent of terrestrial [[cinder cone]]s formed by [[volcanism|volcanic activity]].<ref name="meresse">MERESSE, S.; COSTARD, F.; MANGOLD, N.. Formation and evolution of the chaotic terrains by subsidence and magmatism: Hydraotes Chaos, Mars. Icarus 194, 2008. Doi: 10.1016/j.icarus.2007.10.023.</ref>

<gallery class="center" widths="190px" heights="180px" > Wikichaosmap.jpg|Topographic map of Oxia Palus region of Mars showing the location of a number of chaos regions, including Hydrates Chaos </gallery>

== See also ==

* [[Chaos terrain]] * [[Geology of Mars]] * [[HiRISE]] * [[List of areas of chaos terrain on Mars]] * [[Martian chaos terrain]]

== References == {{reflist}}

== External links == {{commons category|Hydraotes Chaos}} {{Mars}} {{Portal bar|Solar System}}

[[Category:Oxia Palus quadrangle]] [[Category:Chaotic terrains on Mars]]

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