# Peneus Patera

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Patera on Mars

Peneus Patera Scalloped Terrain at Peneus Patera, as seen by HiRISE. Scalloped terrain is quite common in some areas of Mars. Coordinates 58°06′S 307°30′W / 58.1°S 307.5°W / -58.1; -307.5

**Peneus Patera** is a feature in the [Noachis quadrangle](/source/Noachis_quadrangle) of Mars. It is located at 58.1 S and 307.5 W. It was named after an [albedo feature](/source/Albedo_feature) at 48S, 290W.[1]

## Scalloped topography

Peneus Patera shows [scalloped topography](/source/Scalloped_topography) - depressions with scalloped edges. Sometimes the depressions seem to coalesce together. These features typically occur at about 55 degrees north and south latitude. They are believed to form from the removal of subsurface material, maybe interstitial ice by [sublimation](/source/Sublimation_(phase_transition)) (change from solid to a gas). More gentle slopes face in the direction of the equator, while steep [scarps](/source/Escarpment) face the pole. This is probably due to differences in solar heating. The process is believed to be ongoing.[2]

This topography may be of great importance for future colonization of Mars because it may point to [deposits of pure ice](/source/Water_on_Mars#Ground_ice).[3]

## See also

- [Solar System portal](https://en.wikipedia.org/wiki/Portal:Solar_System)

- [Climate of Mars](/source/Climate_of_Mars)

- [HiRISE](/source/HiRISE)

## References

Wikimedia Commons has media related to [Peneus Patera](https://commons.wikimedia.org/wiki/Category:Peneus_Patera).

1. **[^](#cite_ref-1)** [Gazetteer of Planetary Nomenclature](https://planetarynames.wr.usgs.gov)

1. **[^](#cite_ref-2)** Maria Banks (28 February 2007). ["Scalloped Topography in Peneus Patera Crater"](https://hirise.lpl.arizona.edu/PSP_002296_1215). *[HiRISE](/source/HiRISE) project, Lunar & Planetary Laboratory*. [University of Arizona](/source/University_of_Arizona). Retrieved 23 June 2021.

1. **[^](#cite_ref-Dundas,_C._2015_3-0)** Dundas, C.; Bryrne, S.; McEwen, A. (2015). ["Modeling the development of martian sublimation thermokarst landforms"](https://zenodo.org/record/1259051). *Icarus*. **262**: 154–169. [Bibcode](/source/Bibcode_(identifier)):[2015Icar..262..154D](https://ui.adsabs.harvard.edu/abs/2015Icar..262..154D). [doi](/source/Doi_(identifier)):[10.1016/j.icarus.2015.07.033](https://doi.org/10.1016%2Fj.icarus.2015.07.033).

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Adapted from the Wikipedia article [Peneus Patera](https://en.wikipedia.org/wiki/Peneus_Patera) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Peneus_Patera?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.