Radioactive dating activity middle school

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What’s more, if the whole rock is badly weathered, it will be hard to find an intact mineral grain containing radioactive isotopes.

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

Relative age dating also means paying attention to crosscutting relationships.

Say for example that a volcanic dike, or a fault, cuts across several sedimentary layers, or maybe through another volcanic rock type.

Pretty obvious that the dike came after the rocks it cuts through, right?

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