
sedimentary records
Sedimentary records are layers of rocks and materials that form as sediments—like sand, mud, or minerals—are deposited over time. These layers, called strata, preserve evidence of Earth's history, such as past climates, biological activity, and environmental changes. By studying sedimentary records, scientists can interpret how the Earth's surface and life have evolved, reconstruct ancient environments, and understand events like climate shifts or mass extinctions. Essentially, sedimentary records serve as a natural archive, providing valuable insights into Earth's dynamic history.