Isotopic age dating patterson
Their method, a type of radiometric dating called uranium-lead (U-Pb) dating, relies on the fact that uranium isotopes radioactively decay to form lead isotopes.By comparing the amount of each isotope in a sample, the age of the sample can be calculated.Far from being data, these dates are actually interpretations of the data.As discussed before, the assumptions influence the interpretation of the data.There are at least 67 different uniformitarian (the present is the key to the past) methods of dating the earth other than long-age radiometric dating: each of which yield ages of less than 500 million years.
In order to be used as a natural clock to calculate the age of the earth, the processes generating lead isotopes must meet the four conditions of a natural clock: an irreversible process, a uniform rate, an initial condition, and a final condition.
What is less commonly known are any of the details of how the issue was settled: such as that the 4.5 billion year 'date' came from a single meteorite that was assumed to be the same age as the earth's core.
And since this favored 'date' is the only one that's trumpeted by the media it is the only date that many assume to be correct.
There are three main assumptions that must be made to accept radiometric dating methods.
These must be accepted on faith in uniformitarian and naturalistic frameworks.Most scientists and many Christians believe that the radiometric dating methods prove that the earth is 4.5 billion years old.