Deep mantle krypton reveals Earth’s outer solar system ancestry

Krypton from the Earth’s mantle, collected from geologic hot spots in Iceland and the Galapagos Islands, reveals a clearer picture of how our planet formed, according to new research. The findings indicate Earth’s volatile elements — essentials such as carbon, water and nitrogen — arrived as Earth was growing and becoming a planet, rather than being delivered by meteorites after the collision that formed the moon.


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Source: ScienceDaily