Baltisk is a crater in the
Argyre quadrangle of Mars. It was named after a
town
A town is a human settlement. Towns are generally larger than villages and smaller than cities, though the criteria to distinguish between them vary considerably in different parts of the world.
Origin and use
The word "town" shares an ori ...
in Russia in 1976. Baltisk is located on the western edge of the
Argyre impact basin.
Maphookcrater.jpg, Topo map showing the location of Baltisk crater and other nearby features
Baltisk Crater Floor.JPG, Baltisk crater floor, as seen by HiRISE
High Resolution Imaging Science Experiment is a camera on board the '' Mars Reconnaissance Orbiter'' which has been orbiting and studying Mars since 2006. The 65 kg (143 lb), US$40 million instrument was built under the direction ...
. Scale bar is 1000 meters long. Dark dunes are visible at the bottom of image on the left.
Image:Wikibaltisk.jpg, Baltisk crater, as seen by CTX camera on MRO. Dark areas are dunes. Fans are visible in the lower right.
Image:Wikibaltiskdunes.jpg, Dunes in Baltisk crater, as seen by CTX camera. Note: this is an enlargement of a previous image.
Image:Wikibaltiskfan.jpg, 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.
The peak is caused by a rebound of the crater floor following the impact.
See also
References
Impact craters on Mars
Argyre quadrangle
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