Specifically, they are stratigraphers - a branch of geology that focuses on the study of layered rocks (strata) and their relationships. They use various methods, like:
* Fossil analysis: Identifying and dating fossils within rock layers to understand the age and environment of the rock.
* Rock composition and texture: Analyzing the minerals, grain size, and arrangement within the rock to determine its origin and history.
* Geophysical methods: Using techniques like seismic surveys and magnetic measurements to map rock formations underground.
* Radiometric dating: Determining the absolute age of rocks by measuring the decay of radioactive isotopes.
Stratigraphers use this information to reconstruct the Earth's history, understand past environments, and find valuable resources like oil and gas.
