Fake online sex chat - What isotope of carbon is used for radioactive carbon dating
It is clear that carbon-14 dates lack the accuracy that traditional historians would like to have.
There may come a time when all radiocarbon ages rest on firmer knowledge of the sample’s original carbon-14 level than is now available.
Whenever the number of cosmic rays in the atmosphere is low, the rate of carbon-14 production is correspondingly low, resulting in a decrease of the radioisotope in the carbon-exchange reservoir described above.
Studies have revealed that the atmospheric radiocarbon level prior to 1000 it was about 8 percent above what it is today.
Since Libby’s foundational studies, tens of thousands of carbon-14 measurements of natural materials have been made.