Browsing Tag
zircon geochronology
2 posts
Why was the early Earth so hot? The heat wasn’t just coming from the inside
Tim Johnson, Curtin University and Craig O’Neill, Queensland University of Technology When you think about a large asteroid…
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…