Carbon isotope in radiocarbon dating


Rachel Wood does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.



This means that although they are very similar chemically, they have different masses.The calibrated date is also presented, either in BC or AD or with the unit cal BP (calibrated before present - before 1950).The calibrated date is our “best estimate” of the sample’s actual age, but we need to be able to return to old dates and recalibrate them because new research is continually used to update the calibration curve.Radiocarbon decays slowly in a living organism, and the amount lost is continually replenished as long as the organism takes in air or food.



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