An experiment was completed using fresh leaves that were encased in cement, sand, and clay. The slab was then placed outside in natural elements for four months at an average temperature of 68 degrees Fahrenheit. After four months the slab was broken open to find carbonization that had been thought to take at a minimum thousands of years. These simple experiments demonstrate evidence that carbonization does not take vast periods of time as previously believed, but rather, prove that carbonization can occur rapidly under certain physical conditions.
Untold Secrets of Planet Earth: Flood Fossils, Vance Nelson, Feb 2014 p.65
