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Developed by a chemist born in Colorado, there are now commercial and academic laboratories across the globe that conduct radiocarbon dating.Radiocarbon dating has made a substantive contribution to our understanding of Colorado prehistory by allowing archaeologists to place excavated sites in chronological order and allowing comparison of contemporary archaeological cultures.The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.

In the case of radiocarbon dating, the half-life of carbon 14 is 5,730 years.

In addition, charcoal can take up exogenous carbon that must be removed prior to dating if a robust estimate of age of deposition is to be obtained.

This means that radiocarbon dating of charcoal is not straightforward, as erroneous dates can be obtained due to unremoved contamination and important samples can be completely destroyed in pretreatment due to their state of degradation.

^ Ranges reflect varying carbon content (weights approximate).

Sample standard errors will increase as radiometric samples size decreases (see Table 2).




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