In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite.It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle).. The crusts of Earth, Mercury, Venus, Mars, Io, the Moon and other planetary bodies formed via ...Earths crust is a thin shell on the outside of Earth, accounting for less than 1% of Earths volume.It is the top component of the lithosphere, a division of Earths layers that includes the crust and the upper part of the mantle. The lithosphere is broken into tectonic plates whose motion allows heat to escape from the interior of the Earth into space.
Download Image: download
