Using sharks to study ocean oxygen, and what ancient minerals teach us about early Earth
Science Magazine Podcast
The Science Podcast - Dustin Trail
Dustin Trail: We're approaching 20 localities on Earth in which there are zircons older than four billion years old. He says over the next decade, we're going to discover more pieces of rock from the formative stages of our planet's history. "It's entirely possible that there are ancient pieces of terrestrial crust that have been preserved in the vacuum of the moon"
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