Yuty crater on Mars

Yuty crater on Mars

Fig. 8.25 . The rounded, layered ejected material surrounding this crater may have been created when an impacting object melted the permafrost, or frozen ground, on Mars. Multiple layers of successive flows resemble the overlapping petals of a flower. The thin flow partly buries one crater, and is halted and deflected by the rim of another one. The muddy sludge seems to have sloshed across the surface, and was then refrozen. Such ejected features have not been found around craters on the Earth’s Moon or the other planets. This crater, named Yuty after a town is Paraguay, is 19.9 kilometers in diameters and located in Chryse Planitia at 22.4 degrees north and 34.2 degrees west. (A Viking image courtesy of NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University