C 14 dating method

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...[Some authors have said] they were "not aware of a single significant disagreement" on any sample that had been dated at different labs.

Such enthusiasts continue to claim, incredible though it may seem, that "no gross discrepancies are apparent".

It uses accelerator mass spectrometry to determine the amounts of C14 and C12 in a small sample which is vaporised in the test.Surely 15,000 years of difference on a single block of soil is indeed a gross discrepancy!And how could the excessive disagreement between the labs be called insignificant, when it has been the basis for the reappraisal of the standard error associated with each and every date in existence?They found large variations in the radiocarbon 'dates' of objects of known age sent to 38 radiocarbon 'dating' laboratories around the world.Thirty-one of the labs gave results that the British group called unsatisfactory.

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