Changes in the Earth's magnetic field would change the deflection of cosmic-ray particles streaming toward the Earth from the Sun. The study of tree rings led to the first such sequence: Carbon dating is thus accurate within the timeframe set by other archaeological dating techniques. I hope this helps your understanding of carbon dating. Comment on this Story.
Animals, in turn, consume this carbon when they eat plants, and the carbon spreads through the food cycle.
ERRORS ARE FEARED IN CARBON DATING
Mission to Recover a Sunken Soviet Sub. Once it dies, it ceases to acquire 14 Cbut the 14 C within its biological material at that time will continue to decay, and so the ratio of 14 C to 12 C in its remains will gradually decrease. The Wikibook Historical Geology has a page on the topic of: He converted the carbon in his sample to lamp black soot and coated the inner surface of a cylinder with it. This cylinder was inserted into the counter in such a way that the counting wire was inside the sample cylinder, in order that there should be no material between the sample and the wire. The group theorizes that large errors in carbon dating result from fluctuations in the amount of carbon 14 in the air. By contrast, methane created from petroleum showed no radiocarbon activity because of its age.