Reply to post: Re: asumptions, assumptions

Geoboffins find the oldest matter on Earth: Ancient stardust created before the Solar System formed

Doctor Syntax Silver badge

Re: asumptions, assumptions

Yup. The initial assumption with carbon dating was that the constant cosmic ray flux would lead to a constant level of carbon 14 in the atmosphere. Then it was realised that the constant wasn't and that plus other factors resulted in variations so now we have calibrations from dendro samples.

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