Radio metric dating
The slope of the line determines the date, and the closeness of fit is a measure of the statistical reliability of the resulting date.
Technical details on how these dates are calculated are given in Radiometric dating. As with any experimental procedure in any field of science, these measurements are subject to certain "glitches" and "anomalies," as noted in the literature.
A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it.Me: Umm I am hoping that you also realize that age of the earth is not determined by RC dating only.There are a lot of other radioactive elements that are used for larger timescales that have proved with a relatively high consistency that the age of the earth is more than 4 billion years.It is simply unreasonable to put together a 1 hr talk to the climate deniers and expect them to “convert” just based on the merits of the evidence. Cause if it was that easy they would have already done so….right??We would not have a large swath of our county simultaneously holding conflicting beliefs.
For organic materials, the comparison is between the current ratio of a radioactive isotope to a stable isotope of the same element and the known ratio of the two isotopes in living organisms.