Differences between relative chronometric dating techniques
This is the only type of techniques that can help clarifying the actual age of an object.
Absolute dating methods mainly include radiocarbon dating, dendrochronology 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.
This approach helps to order events chronologically but it does not provide the absolute age of an object expressed in years.
Radiocarbon dating, however, can only be used for dating objects that are less than 50 000 years.
Several sets of rings from different trees are matched to build an average sequence.
Subsequently, overlapping series of average sequences from trees that died at different times and come from various sources (ie, the wood of historic buildings, archaeological and fossil woods) are used to build a chronological sequence covering several hundred years which becomes a reference.
This method is primarily applied to projectile points and ceramic vessels.
These present many characteristics that are used for comparing them, such as morphology and raw materials in the case of stone tools, and decorative techniques and motifs in the case of ceramics.