Science News

Deep Mantle Chemistry Surprise: Carbon Content Not Uniform

Marion le Voyer

Even though carbon is one of the most abundant elements on Earth, it is actually very difficult to determine how much of it exists below the surface in Earth’s interior. Analysis by Carnegie’s Marion Le Voyer and Erik Hauri of crystals containing completely enclosed mantle magma with its original carbon content preserved has doubled the world’s known finds of mantle carbon. The findings are published in Nature Communications.


Biggest and best diamonds formed in deep mantle metallic liquid

Steven Shirey

New research from a team including Carnegie’s Steven Shirey, Jianhua Wang, and Emma Bullock explains how the world’s biggest and most valuable diamonds formed—from metallic liquid deep inside Earth’s mantle. The findings are published in Science.