Geological Time Scale
The Geological Time Scale is a system of chronological measurement that relates stratigraphy (layers of rock) to time, used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships between events that have occurred throughout Earth's history. It is divided into eons, eras, periods, epochs, and ages, with each division representing a distinct interval of time characterized by specific geological and biological events. The Geological Time Scale provides a framework for understanding the history of Earth, including the evolution of life, changes in climate, and major geological events such as volcanic eruptions, earthquakes, and the formation of mountain ranges.