Crommelin (Martian crater)

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Crommelin Crater is an impact crater in the Oxia Palus quadrangle of Mars, located at 5.1°N latitude and 10.2°W longitude. It is 113.9  km in diameter and was named after Andrew Crommelin, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).[1] [2] The crater shows many layers. Many places on Mars show rocks arranged in layers. Rock can form layers in a variety of ways. Volcanoes, wind, or water can produce layers.[3] Groundwater may have been involved in the formation of layers in some places.[4] [5]

Why craters are important

The density of impact craters is used to determine the surface ages of Mars and other solar system bodies.[6] The older the surface, the more craters present. Crater shapes can reveal the presence of ground ice.

See also


  2. "Gazetteer of Planetary Nomenclature | Crommelin". International Astronomical Union. Retrieved 4 March 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. "HiRISE | High Resolution Imaging Science Experiment". Retrieved 2012-08-04.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  5. Franchi, F., A. Rossi, M. Pondrelli, B. Cavalazzi. 2014. Geometry, stratigraphy and evidences for fluid expulsion within Crommelin crater deposits, Arabia Terra, Mars. Planetary and Space Science: 92, 34–48

Recommended reading

  • Grotzinger, J. and R. Milliken (eds.). 2012. Sedimentary Geology of Mars. SEPM.