Carbon dating criticism speed dating grand island nebraska
Because geochronologists want to measure isotopes with different masses, a mass spectrometer works really well for dating things.
It is an accurate way to date specific geologic events.
We have dated meteorites using Rb-Sr, Sm-Nd, Pb-Pb, Re-Os, and Lu-Hf isotope systems and have obtained very similar ages.
The fact that the age we calculate is reproducible for these different systems is significant.
For example, the element Uranium exists as one of several isotopes, some of which are unstable.
When an unstable Uranium (U) isotope decays, it turns into an isotope of the element Lead (Pb).