Carbon 14 dating assumptions
Second, the fraction of carbon in the atmosphere (in the form of carbon dioxide) which is carbon-14 is about constant.Fourth, when the living thing dies, carbon-14 is not replenished in its organic material, so carbon-14 decays at the exponential rate mentioned above.One of the problems is contamination of the testing material with modern carbon. Should that happen, you'll estimate the substance to be younger than it really is.
However, if any assumption is found to be fluctuating or inconstant (for any reason) then the results must also be deemed inconclusive or not accurate.The concept of the universe being speculated as being eons of years old goes all the way back to the Greek philosophers on of Roman times and even earlier than that.The universe had been accepted as being millions of years old centuries before radiometric dating was invented.For a man who does not believe in a miracle, a slow miracle would be just as incredible as a swift one."*G. Chesterton (1925)."The theory of evolution gives no answer to the important problem of the origin of life and presents only fallacious solutions to the problem of the nature of evolutive transformations . We are condemned to believe in evolution, but we will always search for a suggestion concerning the methods of transformations . Perhaps we are now in a worse position than in 1859 because we have searched for one century and we have the impression that the various hypotheses [of how evolution could have occurred] are now exhausted.Presently, nature appears to be more steady, more firm and more refractory [resistant] to changes than we thoughtbefore we had made a clear distinction between hereditary variability [within species] and acquired characteristics [DNA characteristics fixing each species]. Salet, Hasard et Certitude: Le Transformisme devant la Biologie Actuelle (1973), p. Several methods for dating ancient materials have been developed.
Fortunately, those variations can be calibrated by tree rings. Third, when organic material is created by living things (such as when trees grow wood), the carbon-14 fraction in those living things matches the fraction in the atmosphere.