Before revision: upright=1.25|Tree remains that have undergone petrifaction, as seen in Petrified Forest National Park In geology, petrifaction or petrification ( from ) is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
After revision: upright=1.25|Tree remains that have undergone petrifaction, as seen in Petrified Forest National Park In geology, petrifaction or petrification ( ) is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.