How to date a fossil using radiometric dating Free mobile adult free adult video chat no tipping no credit card
As the isotopes decay, they give off particles from their nucleus and become a different isotope.
This is what archaeologists use to determine the age of human-made artifacts. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old.
Fossils are collected along with rocks that occur from the same strata.
These samples are carefully cataloged and analyzed with a mass spectrometer.
Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old.
To determine the ages of these specimens, scientists need an isotope with a very long half-life.