Half life dating
This is what your readout said, so your fossil has undergone two half-lives.
Now that you know how many half-lives have passed for your fossil, you need to multiply your number of half-lives by how many years are in one half-life. Your fossil is of an organism (maybe human) that died 11,460 years ago.
In other words, half (50%) of the Carbon-14 you started with has decayed into the daughter isotope Nitrogen-14.
Let's say you found a fossil you think to be a human skeleton.Now it is time to put those math skills to good use.At one half-life, you would have approximately 50% Carbon-14 and 50% Nitrogen-14.This technique relies on the property of half-life.Half-life is defined as the time it takes for one-half of a radioactive element to decay into a daughter isotope.