geological strata

Geological strata are layers of sediment or rock that accumulate over time, much like pages in a history book. Each layer represents a period in Earth's history, formed through processes like sediment deposition, volcanic activity, or erosion. These layers can contain fossils, minerals, and other clues about past environments. By studying them, geologists can interpret Earth's geological history, understand changes in climate, and locate resources like water, minerals, or fossil fuels. Strata are usually seen in rock formations, cliffs, or excavation sites, revealing a chronological record of the planet's evolution.