This Timelapse captures the pulse of the landscape in Oklahoma’s Ouachita Mountains. The area appears like a fingerprint because layers of ancient seabed rock were compressed and folded during a mountain-building event over 300 million years ago. Each shifting patch of green and tan reflects modern cycles of logging and regrowth tracing those same curved ridgelines — offering us a living record of both geologic and human activity over time. Created by @dailyoverview Source imagery from Google Ti

THE GEOLOGIC TIME SCALE The geologic time scale is a system used by scientists to describe and organize Earth’s 4.6 billion year history. It divides time into structured units and subunits, helping researchers trace major geological, biological, and climatic events through deep time. At the broadest level are the eons, the largest divisions of time. There are four formally defined eons: Hadean from Earth’s formation 4.6 billion years ago to about 4.0 billion years ago. Archean from 4.0 billion t