Can carbon dating be trusted wasp dating
I also am aware of new carbon contamination when sampling.
The method is known as bomb pulse dating and owes its efficacy to the large amount of $^$C that entered the atmosphere as a result of the testing of nuclear weapons.But then you see that beyond about 1700, the trend and magnitude of the change in the natural $^$C almost mimics the radioactive decay curve, so it must be very difficult to age anything younger than this in an unambiguous way. Inscriptions, distinctive markings, and historical documents can all offer clues to an artifact’s age.The $^$C atmospheric abundance peaked in the early to mid-1960s at around twice the longer-term average and has since declined pseudo-exponentially with an e-folding time of around 15 years.
From the wikipedia article I referenced, it looks like there are some (smaller) geographic variations too.And if the artifact is organic, like wood or bone, researchers can turn to a method called radiocarbon dating.