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Baltisk (crater)

Coordinates:42°16′S305°20′E / 42.27°S 305.34°E /-42.27; 305.34
From Wikipedia, the free encyclopedia
Crater on Mars
Crater on Mars
Crater characteristics
Viking Orbiter 1 image with Baltisk crater above center
PlanetMars
Coordinates42°16′S305°20′E / 42.27°S 305.34°E /-42.27; 305.34
QuadrangleArgyre
Diameter50.75 km (31.53 mi)
EponymBaltiysk,Russia

Baltisk is a crater in theArgyre quadrangle of Mars. It was named after atown in Russia in 1976.[1] Baltisk is located on the western edge of theArgyre impact basin.[2]

  • Topo map showing the location of Baltisk crater and other nearby features
    Topo map showing the location of Baltisk crater and other nearby features
  • Baltisk crater floor, as seen by HiRISE. Scale bar is 1000 meters long. Dark dunes are visible at the bottom of image on the left.
    Baltisk crater floor, as seen byHiRISE. Scale bar is 1000 meters long. Dark dunes are visible at the bottom of image on the left.
  • Baltisk crater, as seen by CTX camera on MRO. Dark areas are dunes. Fans are visible in the lower right.
    Baltisk crater, as seen by CTX camera onMRO. Dark areas are dunes. Fans are visible in the lower right.
  • Dunes in Baltisk crater, as seen by CTX camera. Note: this is an enlargement of a previous image.
    Dunes in Baltisk crater, as seen by CTX camera. Note: this is an enlargement of a previous image.
  • Fans in Baltisk crater, as seen by CTX camera. Note: this is an enlargement of a previous image. Arrows point to layered parts of the fans.
    Fans in Baltisk crater, as seen by CTX camera. Note: this is an enlargement of a previous image. Arrows point to layered parts of the fans.

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.[3] The peak is caused by a rebound of the crater floor following the impact.[4]

See also

[edit]

References

[edit]
  1. ^"Baltisk (crater)".Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ^Moore, P. et al. 1990. The Atlas of the Solar System. Crescent Books. NY
  3. ^"Stones, Wind, and Ice: A Guide to Martian Impact Craters".
  4. ^Hugh H. Kieffer (1992).Mars.University of Arizona Press.ISBN 978-0-8165-1257-7. Retrieved7 March 2011.
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