Sedimentary rock age dating

These items are called inclusions - foreign bodies of rock or mineral enclosed within another rock.

The highest layers tell them what happened more recently, and the lowest layers tell them what happened longer ago.How do we use the Law of Superposition to establish relative dates?Let's look at these rock strata here: We have five layers total.Geologists establish the age of rocks in two ways: numerical dating and relative dating.Numerical dating determines the actual ages of rocks through the study of radioactive decay.

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