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Liais (crater)

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Liais Crater is an impact crater in the Mare Australe quadrangle of Mars, located at 75.4°S latitude and 252.8°W longitude. It is 132.0  km in diameter and was named after Emmanuel Liais, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).[1]

  • Liais (crater), as seen by CTX camera (on Mars Reconnaissance Orbiter).
    Liais (crater), as seen by CTX camera (on Mars Reconnaissance Orbiter).
  • Layers is Liais crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of the previous image of Liais crater.
    Layers is Liais crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of the previous image of Liais crater.

Why craters are important

The density of impact craters is used to determine the surface ages of Mars and other solar system bodies.[2] The older the surface, the more craters present. Crater shapes can reveal the presence of ground ice.

See also

References

  1. ^ "Gazetteer of Planetary Nomenclature | Liais". usgs.gov. International Astronomical Union. Retrieved 4 March 2015.
  2. ^ http://www.lpi.usra.edu/publications/slidesets/stones/
  • Grotzinger, J. and R. Milliken (eds.). 2012. Sedimentary Geology of Mars. SEPM.
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