Start with your most complete column (the "type section"). Use this as your reference point to compare against other, potentially eroded sections. Step 3: Use the "Pinch-Out" and "Unconformity" Rules Rocks don’t always match perfectly.
In the industry, stratigraphic correlation is used to find oil and gas reservoirs, locate mineral deposits, and map aquifers for clean water. Mastering these exercises develops the "3D sight" necessary to look at a flat map or a single drill hole and visualize the vast, ancient landscape hidden beneath the earth's surface. stratigraphic correlation exercise
Look for fossils that were geographically widespread but existed for a very short geologic time. If two layers contain the same index fossil, they are the same age, even if one is limestone and the other is siltstone. 3. Step-by-Step Workflow for Your Exercise Start with your most complete column (the "type section")