Radiocarbon dating inaccurate

Limestone is of geological origin and would be much older than any archaeological sample; hence, inclusion of limestone during the carbon 14 dating would make the sample older than its true age.

Surgical scalpels are used to scrape contaminants off charcoal while dental drills are used on large bones.There are two types of pretreatment usually applied to samples for carbon dating—physical and chemical.The physical pretreatment of samples for radiocarbon dating is generally done by removing contaminants without the use of chemicals followed by the reduction in sample size.In general, infinite-age contamination can make a sample considerably older while modern contamination can make the sample significantly younger than its true age.Regardless of the carbon dating methodology employed, be it radiometric dating or the accelerator mass spectrometry (AMS) method, a process must be done before analysis to get rid of all possible contaminants. Radiocarbon dating labs receive various materials for analysis but not all portions of the samples can be used.

Leave a Reply