Radiometric dating technique used to date lucy
Geologists often need to know the age of material that they find.They use absolute dating methods, sometimes called numerical dating, to give rocks an actual date, or date range, in number of years.
However, there are radiometric dating methods that can be used on sedimentary rock, including luminescence dating.Others measure the subatomic particles that are emitted as an isotope decays.Some measure the decay of isotopes more indirectly.All radiometric dating methods measure isotopes in some way.Most directly measure the amount of isotopes in rocks, using a mass spectrometer.
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