What is the limitation of relative dating in biology
So, we see there are a number of different methods for dating rocks and other non-living things, but what if our sample is organic in nature?
For example, how do we know that the Iceman, whose frozen body was chipped out of glacial ice in 1991, is 5,300 years old?
So, we rely on radiometric dating to calculate their ages.
Radiometric dating, or radioactive dating as it is sometimes called, is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes.
So, radiocarbon dating is also useful for determining the age of relics, such the Dead Sea Scrolls and the Shroud of Turin.
With radiocarbon dating, the amount of the radioactive isotope carbon-14 is measured.
Well, we know this because samples of his bones and hair and even his grass boots and leather belongings were subjected to radiocarbon dating.
So, we start out with two isotopes of uranium that are unstable and radioactive.So, you might say that the 'full-life' of a radioactive isotope ends when it has given off all of its radiation and reaches a point of being non-radioactive.When the isotope is halfway to that point, it has reached its half-life.So, radiocarbon dating can be used to find the age of things that were once alive, like the Iceman.And this would also include things like trees and plants, which give us paper and cloth.