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This is perhaps the greatest point of potential error, as assumptions about dating can lead to circular reasoning, or choosing confirming results, rather than accepting a “wrong” date.Second, radiocarbon dating becomes more difficult, and less accurate, as the sample gets older.This makes the results subject to the researchers’ assumptions about those objects.If the spear head is dated using animal bones nearby, the accuracy of the results is entirely dependent on the assumed link between the spear head and the animal.When testing an object using radiocarbon dating, several factors have to be considered: First, carbon dating only works on matter that was once alive, and it only determines the approximate date of death for that sample.

This is particularly true of marine samples and contemporary shells may seem to be hundreds of years old. This provides good information, but it only indicates how long ago that piece of wood was cut from a living tree.Radiocarbon dating can’t tell the difference between wood that was cut and immediately used for the spear, and wood that was cut years before being re-used for that purpose.For this reason, it’s preferable to date objects using multiple methods, rather than relying on one single test.Carbon dating is reliable within certain parameters but certainly not infallible.

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