Specifically, there are two types of carbon found in organic materials: carbon 12 (C-12) and carbon 14 (C-14).
At its most basic level, carbon dating is the method of determining the age of organic material by measuring the levels of carbon found in it.
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We thank you in advance for partnering with us in this small but significant way. All methods of radioactive dating rely on three assumptions that may not necessarily be true: It is assumed that the rate of decay has remained constant over time.
They arrived at this conclusion by comparing age estimates obtained using two different methods - analysis of radioactive carbon in a sample and determination of the ratio of uranium to thorium in the sample.
In some cases, the latter ratio appears to be a much more accurate gauge of age than the customary method of carbon dating, the scientists said.