The Codification of Geological Time

The codification of geological time is the system used by scientists to organize Earth's history into a timeline of events. This timeline includes major divisions such as eons, eras, periods, epochs, and ages, which reflect significant geological, climatic, and biological changes. By studying rock layers (strata) and fossil records, geologists can date events and categorize them chronologically. This framework helps us understand Earth’s history, including the evolution of life and past climates, making it easier to communicate complex geological concepts and the changes that have shaped our planet over billions of years.