What is stratigraphic columns?

A stratigraphic column is a graphic representation of the layers of rock or soil in a particular location, arranged in chronological order. It shows the relative ages of the different layers and the types of rocks or soils they are made up of. The units in a stratigraphic column can vary in size and can be grouped into larger units based on similar characteristics. Each unit is named based on its location, age, and composition. Stratigraphic columns can be used to determine the geological history of an area by examining the types and positions of different layers. They are commonly used in geology, environmental science, and archaeology to study the Earth's past and present.