THE ARCHEAN EON? The Archean Eon (4.0–2.5 billion years ago) marks one of Earth's earliest chapters, when the planet’s first stable continental crust formed. Life began to emerge in the form of simple microorganisms, while volcanic activity and the growth of ancient cratons shaped our world’s foundations. It was a time when Earth's atmosphere lacked oxygen, yet it set the stage for the evolution of more complex life. Follow Geomark Seismics Survey and Drilling Services. for more fascinating geol

The Archean Eon was a harsh time on Earth. Even so, rocks from this era may preserve signs of ancient life 🌍 #earth #ancient #ancientearth #archean #geology | NOVA l PBS