Kipini (crater)

Kipini

Kipini Crater south rim, as seen by HiRISE. Scale bar is 500 meters long.
Planet Mars
Coordinates 26°06′N 31°36′W / 26.1°N 31.6°W / 26.1; -31.6Coordinates: 26°06′N 31°36′W / 26.1°N 31.6°W / 26.1; -31.6
Eponym Kipini, Kenya

Kipini Crater is an impact crater in the Oxia Palus quadrangle of Mars. It is located at 26.1° N and 31.6° W It is named after a Town in Kenya.[1] Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.[2] The peak is caused by a rebound of the crater floor following the impact.[3] If one measures the diameter of a crater, the original depth can be estimated with various ratios. Because of this relationship, researchers have found that many Martian craters contain a great deal of material; much of it is believed to be ice deposited when the climate was different.[4]

Why are Craters 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.

The area around craters may be rich in minerals. On Mars, heat from the impact melts ice in the ground. Water from the melting ice dissolves minerals, and then deposits them in cracks or faults that were produced with the impact. This process, called hydrothermal alteration, is a major way in which ore deposits are produced. The area around Martian craters may be rich in useful ores for the future colonization of Mars.[5]

See also

References

  1. ↑ "Gazetteer of Planetary Nomenclature | Kipini". usgs.gov. International Astronomical Union. Retrieved 4 March 2015.
  2. 1 2 http://www.lpi.usra.edu/publications/slidesets/stones/
  3. ↑ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011.
  4. ↑ Garvin, J., et al. 2002. Global geometric properities of martian impact craters. Lunar Planet Sci. 33. Abstract @1255.
  5. ↑ http://www.indiana.edu/~sierra/papers/2003/Patterson.html.


This article is issued from Wikipedia - version of the 10/22/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.