How far back can carbon dating date


15-Nov-2017 10:24

Tree rings provided truly known-age material needed to check the accuracy of the carbon-14 dating method.During the late 1950s, several scientists (notably the Dutchman Hessel de Vries) were able to confirm the discrepancy between radiocarbon ages and calendar ages through results gathered from carbon dating rings of trees.Suess’s curve, based on the bristlecone pine, used tree rings for its calendar axis.There have been many calibration curves published since Suess’s curve, but their proliferation brought more problems than solutions.

In principle, the age of a certain carbonaceous sample can be easily determined by comparing its radiocarbon content to that of a tree ring with a known calendar age.

Calibration is not only done before an analysis but also on analytical results as in the case of radiocarbon dating—an analytical method that identifies the age of a material that once formed part of the biosphere by determining its carbon-14 content and tracing its age by its radioactive decay.



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