Carbon 14 nitrogen 14 dating alcoholic and dating again
This requires that only the parent isotope be initially present or that the amount of daughter isotope present at the beginning is known so that it can be subtracted.
Many examples from literature show that the zero-reset assumption is not always valid.
Thus radioactive dating relies purely on assumptions.
We could put forward the following counter arguments to the constancy of these assumptions: a) The constancy of cosmic ray bombardment might be questioned.
Carbon-14 comes from nitrogen and is independent of the carbon-12 reservoir.
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d) Even if the rate of decay is constant, without knowledge of the exact ratio of carbon-12 to carbon-14in the initial sample, the dating technique is subject to question.
It's assumed that the clock was set to zero when the study material was formed.