Past Preserved: Photos of the Petrified Forest
(Image credit: Linda & Dr. Dick Buscher) Petrified wood is a fossil that is the remains of ancient vegetation, most commonly ancient trees. It occurs by a natural action known as permineralization, a process in which mineral deposits take on the shape within the cells of organic tissue. These minerals replace all the organic materials of the ancient trees, most commonly with a silicate such as quartz. 3-D Fossils (Image credit: Linda & Dr. Dick Buscher) Petrified wood is a 3-D fossil representation of the original living organism. The petrification process occurs deep underground where the wo...