{{Short description|Fossae on Mars}} {{Infobox feature on celestial object |name = Labeatis Fossae |image = [[Image:Labeatis Fossae based on THEMIS Day IR.png|200px]] |caption = Labeatis Fossae, as seen by [[THEMIS]]. |coordinates = {{coord|25.5|N|84.1|W|globe:mars_type:landmark|display=inline,title}} |naming = a previously named feature at 30N, 75W }} '''Labeatis Fossae''' is a large trough in the [[Lunae Palus quadrangle]] of [[Mars]], located at 25.5° N and 84.1° W. It is 1,560.0&nbsp;km long and was named after a previously named feature at 30N, 75W.<ref>{{cite web |url=http://planetarynames.wr.usgs.gov |title=Gazetteer of Planetary Nomenclature |website=[[Astrogeology Research Program]] |publisher=[[United States Geological Survey]] |access-date=20 March 2022}}</ref>

The term "fossae" is used to indicate large troughs when using geographical terminology related to Mars. Troughs, sometimes also called [[graben]]s, form when the crust is stretched until it breaks, which forms two breaks with a middle section moving down, leaving steep cliffs along the sides. Sometimes, a line of pits form as materials collapse into a void that forms from the stretching.<ref>[http://www.msss.com/mars_images/moc/2004/01/29/index.html Mars Global Surveyor MOC2-620 Release]</ref>

<gallery class="center" widths="190px" heights="180px" > Image:Labeatis Fossae.jpg|Labeatis Fossae in context, as seen by THEMIS. </gallery>

==References== {{reflist}}

==See also==

* [[Fossa (geology)]] * [[Geology of Mars]]

{{commons category|Labeatis Fossae}} {{Geography of Mars}} {{Portal bar|Solar System}}

[[Category:Valleys and canyons on Mars]] [[Category:Lunae Palus quadrangle]]

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