Difference between absolute and relative dating geology
In fact, Paul already knows that coelophysis lived around 200 million years ago, while iguanodon lived around 150 million years ago.
So, what if Paul found that superus awesomus dinosaur fossil in this middle layer?
That means they don't really know how old their rocks actually are.
Relative dating cannot tell us the actual age of a rock; it can only tell us whether one rock is older or younger than another.The most common form of relative dating is called stratigraphic succession.This is just a fancy term for the way rock layers are built up and changed by geologic processes.In 1896, a French physicist named Henri Becquerel discovered radioactivity in an element called uranium.He saw that it underwent radioactive decay, or emission of energetic particles to produce new elements.
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