Radiometric dating of dinosaur fossils Mobile teen sex dating
After death the amount of carbon-14 in the organic specimen decreases very regularly as the molecules decay.
Carbon-14 has a half-life of 5,730 ± 40 years, meaning that every 5,700 years or so the object loses half its carbon-14.
For example, if you find an unknown fossil in the same layer of rock as one of the index fossils, you know your fossil is the same age as the index fossil.
Geologists and paleontologists have used a combination of dating techniques, which are radiometric dating, stratigraphic dating, and index fossils, to determine the approximate age of rocks all over the world.
Once you know the approximate age of rocks, you can determine the approximate age of the fossil.
Nodosaurus was one of the earliest armored dinosaurs discovered.
So, if you can’t date the fossil directly with scientific tests, how do you date the fossil?
But while the difficulties of single life may be intractable, the challenge of determining the age of prehistoric artifacts and fossils is greatly aided by measuring certain radioactive isotopes.