Radiocarbon dating on fossils

by  |  05-Nov-2015 09:51

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First, any instrument which is built to measure radiocarbon has a limit beyond which it cannot separate the signal due to radiocarbon in the sample from the signal due to background processes within the measuring apparatus.

Even a hypothetical sample containing absolutely no radiocarbon will register counts in a radiocarbon counter because of background signals within the counter.

In the early days of radiocarbon analysis this limit was often around 20,000 radiocarbon years.

Thus, all the researcher was able to say about samples with low levels of radiocarbon was that their age was greater than or equal to 20,000 radiocarbon years (or whatever the sensitivity limit of his apparatus was).

It is not correct to state or imply from this evidence that the radiocarbon dating technique is thus shown to be generally invalid.

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