Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks. Over 300 naturally-occurring isotopes are known.Radioactive dating is a method of dating rocks and minerals using radioactive isotopes

What machine is radioactive dating?

Thermal ionization mass spectrometer Thermal ionization mass spectrometer used in radiometric dating. To determine the ages in years of Earth materials and the timing of geologic events such as exhumation and subduction, geologists utilize the process of radiometric decay.