Relative dating of a fossil

Free 5-day trial You may already know how to date a fossil with a rock.

Once students begin to grasp "relative" dating, they can extend their knowledge of geologic time by exploring radiometric dating and developing a timeline of Earth's history.It only sequences the age of things or determines if something is older or younger than other things.Some types of relative dating techniques include climate chronology, dendrochronology, ice core sampling, stratigraphy, and seriation.Watch this video to find out how we use index fossils to establish the relative ages of rocks.In previous lessons, we talked about the Geologic Time Scale and how scientists use it to piece together the history of the earth.Geologists establish the age of rocks in two ways: numerical dating and relative dating.


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