Browsing Tag
Hadean Eon geology
2 posts
New research reveals chemical secrets of Earth’s crust 4.5 billion years ago
The Eurasian and North American tectonic plates in Thingvellir National Park, Iceland. Nido Huebl/Shutterstock Simon Turner, Macquarie University…
What To Look For In 4-Billion-Year-Old Rock
Ultra-durable crystals called zircons, found in ancient rocks, preserve chemical clues that date back over 4 billion years—revealing…