The process by which geologists identify and match sedimentary strata and other rocks of the same ages in different areas is called superposition.

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The process by which geologists identify and match sedimentary strata and other rocks of the same ages in different areas is called correlation. Superposition refers to the principle that in an undisturbed sequence of sedimentary rocks, the oldest rocks are at the bottom and the youngest rocks are at the top.

The Process by Which Geologists Identify and Match Sedimentary Strata