Ways of dating fossils

Anything that dies after the 1940s, when Nuclear bombs, nuclear reactors and open-air nuclear tests started changing things, will be harder to date precisely.

But the same sedimentary layers can often be traced over wide areas, so even fossils from sites far apart can be arranged in a relative chronology. 2 Dating through other social network services such as facebook, google and so on.There is double dating, where two couples go out somewhere together.Today, scientists use a variety of techniques to date rocks and fossils precisely.Most often, they measure the amounts of particular radioactive elements—often radiocarbon or potassium—present to determine when a rock was formed, or when an animal or plant died.

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