Astronomy:Oxia Planum

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Oxia Planum
Oxia Planum near Coogoon Vallis by HiRise.jpg
LocationOxia Palus quadrangle
CoordinatesCoordinates: 18°16′30″N 335°22′05″E / 18.275°N 335.368°E / 18.275; 335.368

Oxia Planum is a plain located on Mars (near 18°16′30″N 335°22′05″E / 18.275°N 335.368°E / 18.275; 335.368)[1] that has been chosen as a preferred landing location for the ExoMars rover,[2][3][4] with an elevation more than 3000 metres below the Martian mean.[5]

Overview

Oxia Planum contains one of the largest exposures of clay-bearing rocks and are around 3.9 billion years old.[6] The site is iron-magnesium rich clays, indicating that water once played a role here. The site sits in an area of valley systems with the exposed rocks exhibiting different compositions, indicating a variety of deposition and wetting environments.

Clay accumulation underneath the remnants of a fan or delta near the outlet of Coogoon Vallis may offer preservation for biosignatures against the planet's harsh radiation and oxidation environment.[6][7][8]

Oxia Planum - Location Map.
Oxia Planum - Geological Context - Morphology.

See also

References

  1. Bridges, John (July 1, 2015). "Clay-Rich Terrain in Oxia Planum: A Proposed ExoMars Landing Site". Arizona University. http://hirise.lpl.arizona.edu/ESP_039154_1985. Retrieved October 21, 2015. 
  2. "Oxia Planum Favoured for ExoMars Surface Mission". European Space Agency. 9 November 2018. http://www.esa.int/Our_Activities/Human_and_Robotic_Exploration/Exploration/ExoMars/Oxia_Planum_favoured_for_ExoMars_surface_mission. Retrieved 25 June 2019. 
  3. Amos, Jonathan (October 21, 2015). "ExoMars rover: Landing preference is for Oxia Planum". BBC News. https://www.bbc.com/news/science-environment-34584214. Retrieved October 22, 2015. 
  4. Atkinson, Nancy (October 21, 2015). "Scientists Want ExoMars Rover to Land at Oxia Planum". Universe Today. http://www.universetoday.com/123018/scientists-want-exomars-rover-to-land-at-oxia-planum/. Retrieved October 22, 2015. 
  5. ESA mission updates. Emily Lakdawalla; 5 November 2015.
  6. 6.0 6.1 Durnham, R. (October 21, 2015). "ExoMars 2018 rover heading for Oxia Planum". Red Planet Report. http://redplanet.asu.edu/?p=15954. Retrieved October 22, 2015. 
  7. Thollot, P.; Quantin, C. (May 14, 2014). "Oxia Planum, landing site for Mars 2020" (PDF). Universite de Lyon, France. http://marsnext.jpl.nasa.gov/workshops/2014_05/14_Oxia_Thollot_webpage.pdf. Retrieved October 22, 2015. 
  8. Staff (October 1, 2014). "Possible Future Mars Landing Site in Oxia Planum - High Resolution Imaging Science Experiment". The University of Arizona. http://www.uahirise.org/ESP_037070_1985. Retrieved October 21, 2015. 

External links