A list of PAAC volunteers, their certification status and an explanation of that status.
Geologists often need to know the age of material that they find.
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Carbon-12 and 13 do not decay so the ratio of the decaying carbon-14 needs to be compared to carbon-12 or 13 to determine how old the object is.
However, recently studies have shown that samples that go through standard carbon dating tests have accuracy issues when the sample is older than 30,000 years.
When people, plants, or anything that is carbon based is alive, it is able to generate carbon-14, when it dies it stops generating carbon-14.