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    Carbon 14 dating correction curve

    Bones are first mechanically cleaned (brushed with water), then ground to a grain size of about 0.2 mm.

    The bone-powder is treated with 8% HCl, finally the sample is washed to p H=3 and the collagen extracted by hot water at 90 C during 24 hours at p H=3 by the same procedure as suggested by Longin.

    In this paper I will discuss eight categories of carbon-14 models and their experimental implications.Isotopes of a particular element have the same number of protons in their nucleus, but different numbers of neutrons.This means that although they are very similar chemically, they have different masses.Absolute dating techniques attempt to pinpoint a discrete, known interval in time such as a day, year, century, or millennia.Very few artifacts recovered from an archeological site can be absolutely dated.

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