margin of error in carbon dating of archeological artifacts

These factors include the amount of rainfall, temperature changes, and the amount of sunlight. How do you reply? But other species produce scarcely any extra rings. If they find that style of artifact at a site, they can use that date range to estimate how old the site is. Radiocarbon dating earlier than the continuous tree ring sequence relies on correlation with more approximate records. The researchers confirmed their method by dating samples whose ages had already been well determined by other means—for example, from dendrochronology or studies of surrounding organic matter, such as bones and seeds. Because 14 C decays at a known rate, the proportion of radiocarbon can be used to determine how long it has been since a given sample stopped exchanging carbon — the older the sample, the less 14 C will be left.

MARGIN OF ERROR IN CARBON DATING OF ARCHEOLOGICAL ARTIFACTS / janiceclark.net

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