Relative dating determining the sequence of geologic events

Scientists are always spouting information about the ages of rocks and fossils. Well, they figure it out using two different methods: relative dating and numerical dating.

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The key in relative dating is to find an ordered sequence.Recently, he appeared on the evening news to talk about a new dinosaur he just discovered. Paul says he can tell from the fossils that superus awesomus lived on Earth about 175 million years ago.Paul is super awesome, so I'm going to take him at his word.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?In 1905, Ernest Rutherford figured out that we could use radiation to establish the ages of rocks.

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