Errors carbon dating
Most archaeological items can’t be directly carbon dated, so their dating is based on testing done on nearby objects or materials.This makes the results subject to the researchers’ assumptions about those objects.
For this reason, it’s preferable to date objects using multiple methods, rather than relying on one single test.So even brand-new samples contain incredibly tiny quantities of radiocarbon.Eventually, the amount of carbon-14 remaining is so small that it’s all but undetectable.The other major factor affecting the results of carbon dating is gauging the original proportion of carbon-14 itself.Carbon dating is based on the loss of carbon-14, so, even if the present amount in a specimen can be detected accurately, we must still know how much carbon-14 the organism started with.Second, radiocarbon dating becomes more difficult, and less accurate, as the sample gets older.
The bodies of living things generally have concentrations of the isotope carbon-14, also known as radiocarbon, identical to concentrations in the atmosphere.
Scientists must assume how much carbon-14 was in the organism when it died.
Complicating matters is the fact that Earth’s carbon-14 concentrations change drastically based on various factors.
Carbon dating is reliable within certain parameters but certainly not infallible.
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.
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.