Sentences with phrase «various radioactive isotopes»
Some might think it's science — working out the ratios of various radioactive isotopes in a sample to determine the age of something.
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Using the known decay rates of various radioactive isotopes, he investigates the chronology of early processes on small planetary objects and studies the chemical and physical aspects of old and young crust - forming processes on Earth.
Not exact matches
A radioactive isotope, carbon - 14, and part of the carbon molecule, found in unfossilized human and animal bone and charcoal, has been used to date Neamderthal remains and it was this carbon - 14 dating method that established the date for Neanderthal extinction - 28,000 years ago - as well as the dates assigned to the various Neanderthal sites found throughout Eurasia.