As nouns the difference between lithography and geology

is that lithography is the process of printing a lithograph on a hard, flat surface; originally the printing surface was a flat piece of stone that was etched with acid to form a surface that would selectively transfer ink to the paper; the stone has now been replaced, in general, with a metal plate while geology is the science that studies the structure of the earth (or other planets), together with its origin and development, especially by examination of its rocks.