Old-earth evolutionists consistently state that their methods of dating the ages of fossils are practically incontrovertible. This forms one of their most formidable weapons against the Biblical model of a young earth, since their conclusions are held as unarguable facts established by objective, scientific data.

Closer investigation reveals a different story. Many of the dating methods which claim to provide unarguable evidence for ancient fossils are deeply flawed or based on assumptions rather than facts. One example is the method of measuring the absorption of uranium (U) into fossil human teeth and bones. As archeologists Chen Tiemei and Yuan Sixun of Beijing University found out, the “main difficulty of fossil dating” with this method is that the process by which uranium is absorbed into teeth and bones “has not been fully understood.” They point out that many bones and teeth suffer from a continuous drain of uranium after fossilization takes place, “so the apparent ages might deviate from the true ages. It is very difficult prior to analysis to predict whether a bone or tooth sample is a closed system” (Tiemei & Sixun 1988: 60). …

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