Radiocarbon dates can be obtained from many types of organic material including charcoal, shell, wood, bone and hair.
The amount of carbon dioxide in the living organism is equal to that in the atmosphere.
Relative dating includes different techniques, but the most commonly used are soil stratigraphy analysis and typology.b) Absolute These methods are based on calculating the date of artefacts in a more precise way using different attributes of materials.This method includes carbon dating and thermoluminescence.On the other hand, absolute dating includes all methods that provide figures about the real estimated age of archaeological objects or occupations.These methods usually analyze physicochemical transformation phenomena whose rate are known or can be estimated relatively well.