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Alternatives radio carbon dating

alternatives radio carbon dating-77

Carbon-14 dating is a radiometric dating technique used to deduce the approximate age of organic remains by measuring the quantity of C-14 isotopes in the sample and comparing them with current atmospheric levels.

They report that the coal was measured as having an abundance well above the blank used by the laboratory representing unknown contamination. Critics suggest that coal could have had carbon fixed by bacteria or fungus in the coal (Talk Origins).This dilution effect would be so profound in the pre-Flood world that if we were to take a living organism and measure its Carbon-14 using today's ratio, it would appear to be many tens of thousands of years old.This is a clear example of where uniformitarian assumptions break down because they presume that the processes and conditions in place today have been steady throughout time.Through the life of the organism, the proportion of C-14 to C-12 reaches the same proportion as in the rest of the environment.When the organism dies, however, it ceases to incorporate carbon into its body.Today, scientists attempt to determine the age of dead organisms by measuring the ratio of C-12 to C-14, by comparing it to an assumed but unobserved initial ratio, and determining how long it would take to get from the assumed but unobserved initial ratio at an assumed but unobserved rate of decay.

Here are the key assumptions: There is one fact that makes it highly unreasonable to believe that the proportion of C-14 to C-12 was the same in the past as it has been in recent history: It is not in equilibrium.

The rate of C-14 production today is 18% higher than the rate of decay (Whitelaw).

This means that today we are experiencing a net increase in the proportion of C-14 in the atmosphere.

At this point, and for the years following, the C-14 in the sample begins to decay back into N-14, while the C-12 does not decay.

Both C-14 and C-12 are lost as the body decays, but they are lost proportionally, so that the proportion of C-14 to C-12 decreases slowly for thousands of years after the death of the organism.

It is impossible to determine whether it has always been increasing (as argued by some creationists) or whether it has undergone cycles of increase and decrease (as argued by other creationists and evolutionary scientists).