facies analysis

Facies analysis is a method used in geology to understand the characteristics of different rock layers or formations. By studying these layers—looking at their composition, texture, and fossil content—scientists can infer the environmental conditions in which they formed. For instance, a layer with sand and shells may indicate a beach environment, while clay layers might suggest a lagoon or deep water. This analysis helps reconstruct past landscapes, informing us about Earth's history, climate changes, and the processes that shaped our planet over time.