Relative dating of rocks worksheet

But the most accurate forms of absolute age dating are radiometric methods. Sedimentary rocks in particular are notoriously radioactive-free zones.

After all, a dinosaur wouldn’t be caught dead next to a trilobite.

To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This rule is common sense, but it serves as a powerful reference point.

Geologists draw on it and other basic principles ( to determine the relative ages of rocks or features such as faults.

Our planet inherits a large number of artifacts and monuments bestowed upon us by older historic civilizations.

These remains are subjected to dating techniques in order to predict their ages and trace their history.

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