Radioactive decay and carbon dating
We thank you in advance for partnering with us in this small but significant way. All methods of radioactive dating rely on three assumptions that may not necessarily be true: It is assumed that the rate of decay has remained constant over time.This assumption is backed by numerous scientific studies and is relatively sound.Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon.At any particular time all living organisms have approximately the same ratio of carbon 12 to carbon 14 in their tissues.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.Scientists place great faith in this dating method, and yet more than 50% of radiocarbon dates from geological and archaeological samples of northeastern North America have been deemed unacceptable after investigation.While there is no proof that the rates were different in the past than they are today, there is also no proof that they were the same.
We could put forward the following counter arguments to the constancy of these assumptions: a) The constancy of cosmic ray bombardment might be questioned.
When finding the age of an organic organism we need to consider the half-life of carbon 14 as well as the rate of decay, which is –0.693.
For example, say a fossil is found that has 35% carbon 14 compared to the living sample. We can use a formula for carbon 14 dating to find the answer.
So, the fossil is 8,680 years old, meaning the living organism died 8,680 years ago.
Help us reduce the maintenance cost of our online services.The current high rate of entry might be a consequence of a disturbed post-Flood environment that altered the .