JOHN DURHAM / SCIENCE PHOTO LIBRARY JOHN DURHAM / SCIENCE PHOTO LIBRARY
Light micrograph of a section of coal showing fragments of a fossilised leaf (yellow strands) trapped within the dark, vegetative material. Coal formation occurs when peat or some other type of partially decayed vegetable matter is compacted and heated during burial. This process of coalification produces the familiar black, rock- like substance burnt as fossil fuel. Magnification: x40 at 35mm size.
Model release not required. Property release not required.