In geology, _____ usually means determining time equivalency of rock units.

Question

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Correlation is the process of determining the time equivalency of rock units in different areas, which involves matching up fossil assemblages and other features to determine the relative ages of the rocks. Physical continuity and lateral continuity refer to the spatial relationships of rock units, while unconformity and superposition refer to the deposition and layering of rocks.

In Geology, _____ Usually Means Determining Time Equivalency of Rock