Browsing Tag
geologic time scale
2 posts
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…
The True HIstory of Earth’s Continents
A new plate tectonic model spans 1.8 billion years, reconstructing ancient supercontinents like Rodinia and Nuna with tools…