What are stratigraphic columns used for?

Stratigraphic columns serve as visual representations of the vertical sequence and distribution of rock layers within a particular geologic location. By displaying the various strata, these columns help geologists understand the relative ages of different rock units, their characteristics, and how they relate to one another over a defined geologic time scale. This information is crucial for interpreting the geologic history of an area, as it illustrates which layers were deposited at the same time and provides insights into past environmental conditions.

While stratigraphic columns can indirectly provide information about time periods and fossil locations, their primary function is to clearly and accurately depict the arrangement and thickness of rock layers, which is essential for various geological interpretations and studies.