Geologic Time Scale, the Development of Geological Time — 5-topic bundle

Geologic time is how geologists measure and describe the history of our planet, which spans roughly 4.54 billion years. It's not just about a linear progression of dates; it's also about understanding the major events, changes in life forms, and geological processes that have shaped Earth. Since we can't directly observe billions of years, we rely on fundamental principles to interpret the rock record.