Bibcode
Meszaros, S. P.
Bibliographical reference
Sky and Telescope (ISSN 0037-6604), vol. 69, May 1985, p. 404, 405.
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5
1985
Citations
0
Refereed citations
0
Description
Visual, scaled comparisons are made among prominent volcanic, tectonic,
crater and impact basin features photographed on various planets and
moons in the solar system. The volcanic formation Olympus Mons, on Mars,
is 27 km tall, while Io volcanic plumes reach 200-300 km altitude.
Valles Marineris, a tectonic fault on Mars, is several thousand
kilometers long, and the Ithasa Chasma on the Saturnian moon Tethys
extends two-thirds the circumference of the moon. Craters on the
Saturnian moons Tethys and Mimas are large enough to suggest a collision
by objects which almost shattered the planetoids. Large meteorite
impacts may leave large impact basins or merely ripples, such as found
on Callisto, whose icy surface could not support high mountains formed
by giant body impacts.