pDates derived from carbon samples may be carried back to about 50,000 years. Potassium or uranium isotopes which have for a lot longer half-lives, are used to date very ancient geological events that have to[…]
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pDates derived from carbon samples may be carried back to about 50,000 years. Potassium or uranium isotopes which have for a lot longer half-lives, are used to date very ancient geological events that have to[…]